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Journal articles on the topic 'Ni-doped ZnO'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Mageswari, K., T. Bavani, J. Madhavan, and P. Prabukanthan. "Highly Effective Photocatalytic Performance in Visible Light of Sodium hexametaphosphate Capped Ni-Doped ZnO Nanoparticles." Asian Journal of Chemistry 35, no. 12 (2023): 2922–28. http://dx.doi.org/10.14233/ajchem.2023.30242.

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This study describes the microwave assisted synthesis of without and with sodium hexametaphosphate (SHMP) (1 mol%) capped 3 mol% Ni- doped ZnO nanoparticles. Various sophisticated analytical techniques were used to characterize the Ni-doped ZnO nanoparticles. The results showed that including SHMP capped 3 mol% Ni-doped ZnO nanoparticles has a significant influence on the photoctalyst and structural characteristics of the ZnO nanoparticles. Under visible light illumination, SHMP capped 3 mol% Ni-doped ZnO nanoparticles demonstrated better photocatalytic degradation of methylene blue dye. As a

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2

Philipus, Raynaldi, Annisa Noorhidayati, Nadia Febiana Djaja, and Rosari Saleh. "Comparative Study of Photocatalytic Activity of Ni-Doped ZnO and Zeolite Supported Ni-Doped ZnO Prepared by Co-Precipitation Method." Materials Science Forum 827 (August 2015): 25–30. http://dx.doi.org/10.4028/www.scientific.net/msf.827.25.

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The present study compares the photocatalytic degradation of methylene blue in the presence of natural zeolite supported Ni-doped ZnO and bare Ni-doped ZnO nanoparticles. The photocatalyst was prepared by co-precipitation method and the photocatalytic activity of the photocatalyst was investigated under UV light irradiation. The results showed that the photocatalytic efficiency of zeolite supported Ni-doped ZnO nanoparticles is better than that of bare Ni-doped ZnO nanoparticles. The influence of experimental parameters on the photodegradation of methylene blue was studied and it was observed

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3

P Geetha Devi and A.Sakthi Velu. "Synthesis by co-precipitation method, structural and optical properties of ZnO and nickel doped ZnO nanoparticles." JOURNAL OF ADVANCED APPLIED SCIENTIFIC RESEARCH 1, no. 2 (2015): 130–37. http://dx.doi.org/10.46947/joaasr12201512.

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The structural and optical properties of Ni doped ZnO nanoparticles (NPs) prepared by co-precipitation method have been investigated. The X-ray diffraction pattern confirmed synthesized nanoparticles retained the wurtzite hexagonal structure. From FESEM studies, ZnO and Ni doped ZnO NPs showed Spherical & nanorod mixed phase morphology for undoped and Ni doped ZnO NPs respectively. The amount of dopant (Ni2+) incorporated into ZnO sample was determined by EDAX. The FT-IR spectra confirmed the Zn-O stretching bands at 444 and 451cm-1 for ZnO and Ni doped ZnO NPs. Optical absorption measurem

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4

Jiang, Bing-Chang, and Sheng-Hsiung Yang. "Nickel-Doped ZnO Nanowalls with Enhanced Electron Transport Ability for Electrochemical Water Splitting." Nanomaterials 11, no. 8 (2021): 1980. http://dx.doi.org/10.3390/nano11081980.

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This article reports on the growth of 3 mol% nickel (Ni)-doped zinc oxide nanowalls (ZnO NWLs) using the hydrothermal method. Morphological investigation as well as electrical conductivity of the undoped and Ni-doped ZnO NWLs was also discussed. The surface roughness of the formed ZnO NWLs was reduced after Ni-doping. The pore size of Ni-doped ZnO NWLs can be controlled by changing the concentration of hexamethylenetetramine (HMT). As the HMT concentration increased, the pores became larger with increasing surface roughness. The electrical conductivity of the electron-only device based on the

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5

Abdullahi, Sabiu Said, Garba Shehu Musa Galadanci, Norlaily Mohd Saiden, and Josephine Ying Chyi Liew. "Assessment of Magnetic Properties between Fe and Ni Doped ZnO Nanoparticles Synthesized by Microwave Assisted Synthesis Method." Solid State Phenomena 317 (May 2021): 119–24. http://dx.doi.org/10.4028/www.scientific.net/ssp.317.119.

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The emergence of Dilute Magnetic Semiconductors (DMS) with a potentials for spintronic application have attracted much researches attention, special consideration has been given to ZnO semiconductor material due to its wide band gap of 3.37 eV, large exciting binding energy of 60 meV, moreover, its ferromagnetic behavior at room temperature when doped with transition metals. MxZn1-xO (M = Fe or Ni) nanoparticles were synthesized by microwave assisted synthesis method calcined at 600°C. The structural, morphological and magnetic properties of these nanoparticles were studied using X-ray Diffrac

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6

Jadhav, Jeevan, and Somanth Biswas. "Structural and Magnetic Properties of Zn_1-xNi_xO Nanoparticles Synthesized by a Wet Chemical Method." Applied Mechanics and Materials 446-447 (November 2013): 137–41. http://dx.doi.org/10.4028/www.scientific.net/amm.446-447.137.

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Wurtzite type Zn1-xNixO (x=0-0.10) nanoparticles were synthesized by a chemical method via an amorphous polymer precursor. The precursors were derived by a novel process involving a reaction between aqueous solutions of metal ions (Zn2+and Ni2+) and a freshly prepared solution ofpoly-vinyl alcohol (PVA)-sucrose under constant stirring at 60-65°C. Structural and magnetic properties of the recrystallized Ni-doped ZnO nanoparticles, obtained after heat treating the corresponding precursors at selected temperatures, were studied in detail. X-ray diffraction (XRD) reveals an increment in the lattic

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7

Mazwan, M., A. Shuhaimi, M. Sobri, et al. "Structural and Optical Properties of Nickel-Doped Zinc Oxide Thin Film on Nickel Seed Layer Deposited by RF Magnetron Sputtering Technique." Advanced Materials Research 895 (February 2014): 3–7. http://dx.doi.org/10.4028/www.scientific.net/amr.895.3.

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Nickel (Ni)-doped zinc oxide (ZnO) layers were deposited simultaneously by radio frequency (RF) magnetron sputtering from a Ni and ZnO target. A Ni seed layer was used as catalyst prior to the deposition of Ni-doped ZnO. The Ni seed layer was grown with 15 sccm of Ar flow rate while the Ni-doped ZnO was grown with mixture of Ar:O2at 25:5 sccm gas flow rate ratio. The deposition pressure is 5 mTorr for both Ni seed layer and Ni-doped ZnO layer. This paper studies the influence of deposition temperature to the Ni seed layer and Ni-doped ZnO layer at temperature range from room temperature (RT) u

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8

Moorthy, K., S. S. R. Inbanathan, C. Gopinathan, et al. "Ni-Doped ZnO Thin Films: Deposition, Characterization and Photocatalytic Applications." Journal of Nanoscience and Nanotechnology 21, no. 3 (2021): 1560–69. http://dx.doi.org/10.1166/jnn.2021.18981.

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Root like structured Ni-doped zinc oxide [Zn(1-x)NixO (x = 0.09)] thin films were deposited on a non-conducting glass substrate by indigenously developed spray pyrolysis system at optimized substrate hotness of 573±5 K. Thus obtained Ni-doped ZnO thin films were characterized by UV-visible spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), Atomic Force Microscopy (AFM). XRD result revealed that Ni-doped ZnO has a polycrystalline nature with a hexagonal wurtzite structure. For pure ZnO and Ni-doped ZnO thin films, the particle

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9

Shu, Ruiwen, Honglong Xing, Xiaoli Cao, Xiaoli Ji, Dexin Tan, and Ying Gan. "Preparation, Microwave Absorption and Infrared Emissivity of Ni-doped ZnO/Al Powders by Coprecipitation Method in the GHz Range." Nano 11, no. 04 (2016): 1650047. http://dx.doi.org/10.1142/s1793292016500478.

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In this work, Ni-doped ZnO/Al composites were prepared by a facile chemical co-precipitation method. The morphology and structure of the as-prepared composites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS), respectively. It was found that the flake-like Al powders were successfully coated by Ni-doped ZnO nanoparticles with slight aggregation and Ni[Formula: see text] was successfully doped into the crystal lattice of ZnO. Moreover, the effects of ZnO concentration and doped Ni

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10

Jeyachitr, R., N. Sriharan, V. Senthilnathan, and T. S. Senthil. "Effect of Ni doping on structural, optical and photocatalytic properties of Zn1-XNiXO nanoparticles prepared by different pH conditions." JOURNAL OF ADVANCES IN CHEMISTRY 12, no. 6 (2013): 4097–107. http://dx.doi.org/10.24297/jac.v12i6.5524.

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Zn1-XNiXO (x = 0.00, 0.02, 0.04 & 0.06 mol %) nanoparticles were prepared by simple co-precipitation method. The influences of Ni doping on structure, morphology, optical and photocatalytic properties were investigated by means of Xray diffraction, scanning electron microscopy, UV–Vis spectrophotometer and photochemical reaction method. The obtained result shows that the prepared ZnO nanocrystals were hexagonal wurtzite structure and the average crystallite size decreases with increase of Ni doping. The increase of visible light absorption and increase of band gap were found with the incre

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11

Li, Zhenhua, Sijia Li, Zijian Song, et al. "Influence of Nickel Doping on Ultrahigh Toluene Sensing Performance of Core-Shell ZnO Microsphere Gas Sensor." Chemosensors 10, no. 8 (2022): 327. http://dx.doi.org/10.3390/chemosensors10080327.

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As a volatile organic compound, toluene is extremely harmful to the environment and human health. In this work, through a simple one-step solvothermal method, Ni-doped ZnO sensitive materials (0.5, 1, and 2 at% Ni-doped ZnO) with a core-shell morphology were synthesized for the first time for toluene gas detection. The sensing test results showed that the sensor based on 1 at% Ni-doped ZnO exhibited the best toluene sensing performance. The response was up to 210 to 100 ppm toluene at 325 °C. The sensor exhibited high selectivity, fast response/recovery characteristics (2/77 s), and low detect

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12

Jeyachitra, R., S. Kalpana, T. S. Senthil, and Misook Kang. "Electrical behavior and enhanced photocatalytic activity of (Ag, Ni) co-doped ZnO nanoparticles synthesized from co-precipitation technique." Water Science and Technology 81, no. 6 (2020): 1296–307. http://dx.doi.org/10.2166/wst.2020.230.

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Abstract Methylene blue (MB) dye is the most common harmful, toxic, and non-biodegradable effluent produced by the textile industries. The present study investigates the effect of zinc oxide (ZnO) nanoparticles (NPs) and Ag–Ni doped ZnO NPs on the performance of photocatalytic degradation of MB dye. Pure ZnO and Ag–Ni doped ZnO NPs are synthesized using the co-precipitation method. The crystalline nature and surface morphology of the synthesized pure ZnO and Ag–Ni doped ZnO NPs was characterized by powder X-ray diffraction, scanning electron microscopy (SEM), and high resolution transmission e

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13

Sugihartono, I., F. N. Aliffah, P. L. Putri, M. Manawan, I. Isnaeni, and S. T. Tan. "The role of Ni-Doped ZnO thin films on Methylene Blue (MB) photodegradation under visible irradiation." Journal of Physics: Conference Series 2596, no. 1 (2023): 012012. http://dx.doi.org/10.1088/1742-6596/2596/1/012012.

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Abstract We report the effect of Ni-doped ZnO thin films on the photodegradation of methylene blue (MB) under visible irradiation. The Ni-doped ZnO thin films were deposited on a silicon substrate by ultrasonic spray pyrolysis (USP) at 450 °C for 15 minutes. The ZnO thin films are characterized by X-ray diffraction (XRD) and UV-Vis spectroscopy. The X-ray diffraction (XRD) pattern for all samples confirms that the crystalline phase of Ni-doped ZnO thin films is polycrystalline hexagonal wurtzite. However, due to the Ni incorporation into the ZnO site, there is a change in the crystal plane. Al

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14

Cao, Ling, Dai Zong An, Yan Xin Wang, Shan Shan He, and Chuang Ju Dong. "Studies on the Preparation and Properties of Sheet Ni-Doped ZnO." Advanced Materials Research 356-360 (October 2011): 435–38. http://dx.doi.org/10.4028/www.scientific.net/amr.356-360.435.

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ZnO is a direct wide band-gap Ⅱ-Ⅵ semiconductor material. For decades, ZnO has gained more and more attention as a wide band semiconductor. This paper introduced a modified homogeneous precipitation method to prepare sheet Ni-doped ZnO crystal. The preparation process was studied and the mechanism of this method was discussed. The properties of the sheet Ni-doped ZnO crystal and the effects of growth parameters on the quality of sheet Ni-doped ZnO crystal were studied using XTJ30-micro image manipulation system, thermal analysis system, X-ray diffraction. etc.

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15

Rehman, Abdul, Nakash Rizvi, and Muhammad Tahir Khan. "To Study the Structural, Optical and Magnetic Properties of Ni-Fe Doped ZnO Diluted Magnetic Semiconductors." NUST Journal of Engineering Sciences 15, no. 1 (2022): 12–17. http://dx.doi.org/10.24949/njes.v15i1.678.

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The iron and Nickel co-doped in zinc oxide nano-particle, Zn1-x-yFexNiyO {(x=0, y=0), (x=0.05, y=0), (x=0, y=0.05), (x=0.03, y=0.02)} were prepared by Sol-Gel technique. This type of synthesis is used for the manufacture of a Field Effect Transistor (FET) detector which is extremely sensitive, secure, and capable of reproducing. It is also used for the detection of the Piperidine (CH2)5NH (hexahydro pyridone) chemical. The well-closed pack spherical nano-particles of the identified crystalline structure of the usual wurtzite hexagonal phase were achieved by characterization of X-Ray Diff

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16

Nurfani, Eka, Azka R. Firdaus, Dedi Triyadi, and Aditya Rianjanu. "Role of Ni dopant on the improvement of ZnO-based reusable photocatalytic materials." Greensusmater 1, no. 2 (2024): 51–56. https://doi.org/10.62755/greensusmater.2024.1.2.51-56.

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This study investigates the impact of Ni doping on the enhancement of ZnO-based reusable photocatalytic materials. Ni concentrations derived from nickel chloride hexahydrate were 0 wt% (ZN-1), 1 wt% (ZN-2), and 3 wt% (ZN-3). Field-emission scanning electron microscopy (FESEM) analysis reveals a significant morphological transformation from flower-like structures in pure ZnO to nanoridges in Ni-doped ZnO. X-ray diffraction data indicate a reduction in crystalline quality with Ni incorporation. UV-Vis spectroscopy shows an increase in the bandgap from 3.22 eV for pure ZnO (ZN-1) to 3.34 eV for N

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17

Barick, K. C., M. Aslam, Jinsong Wu, Vinayak P. Dravid, and D. Bahadur. "Defects in three-dimensional spherical assemblies of Ni-doped ZnO nanocrystals." Journal of Materials Research 24, no. 12 (2009): 3543–50. http://dx.doi.org/10.1557/jmr.2009.0446.

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Three-dimensional spherical assemblies of Ni-doped ZnO nanocrystals have been prepared by the solution phase synthesis process. It has been observed that transition metal ions (Zn, Ni) are uniformly distributed in the sample and exist in the +2 oxidation state. Detailed investigation of structural defects formed during the formation of spherical assemblies by oriented attachment of nanocrystals was carried out by high-resolution transmission electron microscope (HRTEM), Raman and photoluminescence (PL) spectroscopy. HRTEM analysis revealed the existence of various crystal defects, such as stac

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18

M., Sudha, Surendhiran S., Manoj Kumar P., and Balamurugan A. "Sonochemical synthesis of Nickel doped ZnO Nanostructures for Environmental Remediation." RESEARCH REVIEW International Journal of Multidisciplinary 05, no. 05 (2020): 11–16. https://doi.org/10.5281/zenodo.3832132.

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Zinc Oxide (ZnO) nanoparticles and Nickel doped ZnO nanostructures with 2.5, 5 and 7.5 wt.% of Ni concentrations were synthesized by simple sonochemical method. The prepared Ni doped ZnO photocatalysts were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and Fourier transform infrared (FTIR) and UV–vis spectrophotometry. The obtained XRD and FESEM results confirmed the well dispersion of Ni nanoparticles with agglomeration with ZnO. The optical band gap value was calculated as 3.29, 3.21 and 3.18 eV from UV-Vis spectra of 2.5, 5 and 7.5 wt.

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JAVED, M., and S. HUSSAIN. "SYNTHESIS, CHARACTERIZATION AND PHOTOCATALYTIC APPLICATIONS OF p(Aac) MICROGELS AND ITS COMPOSITES OF Ni DOPED ZnO NANORODS." Digest Journal of Nanomaterials and Biostructures 15, no. 1 (2020): 217–30. http://dx.doi.org/10.15251/djnb.2020.151.217.

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ZnO nanorods and Ni doped ZnO nanorods with various concentration of nickel 0%, 5%, 10%, 15%, 20%, 25% were prepared by co-precipitation method. By added zinc acetate dehydrate and nickel nitrate as zinc and nickel precursor in presence of Ammonia solution. Microgels of p(AAc) and its composites of Ni doped ZnO nanorods were synthesized by inverse phase polymerization method under N2 gas atmosphere. Optical structure and morphology of Ni doped ZnO nanorods and its composite with p(AAc) were determined by XRD, TEM, SEM, FTIR and UV-Visible spectrometer. The photocatalytic activity of the sample

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20

Goswami, Navendu, and Anshuman Sahai. "Structural Evolution of Nickel Doped Zinc Oxide Nanostructures." MRS Proceedings 1551 (2013): 47–52. http://dx.doi.org/10.1557/opl.2013.960.

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ABSTRACTIn this article, structural evolution in nickel doped zinc oxide nanostructures is reported. The ZnO nanostructures are synthesized with 1-10% of Ni doping adopting a chemical precipitation method. The undoped and doped nanostructures thus prepared, were systematically investigated employing X-ray diffraction (XRD), transmission and scanning electron microscopy (TEM/SEM), Fourier transform infrared (FTIR) and micro-Raman spectroscopy (μRS). The identification of wurtzite phase and determination of lattice parameters of Ni doped ZnO nanocrystallites is ascertained through XRD analysis.

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Sumarti, Sumarti, Iwantono Iwantono, and Awitdrus Awitdrus. "PENGARUH PENAMBAHAN LOGAM TRANSISI NIKEL TERHADAP SIFAT FISIS NANOROD ZnO." Komunikasi Fisika Indonesia 17, no. 3 (2020): 155. http://dx.doi.org/10.31258/jkfi.17.3.155-159.

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Nickel-doped ZnO nanostructures have been successfully grown using seed mediated hydrothermal method. The growth of ZnO nanostructures has been done by concentration of the Ni-doped solution, is 8 mM with the growth temperature of 90°C in 7 hours. The grown ZnO nanostructures were characterized by using UV-Vis Spectroscopy, FESEM, and XRD. The UV-Vis spectra of the samples showed that the ZnO nanorod is hexagonal in shape with a strong absorption occured in the wavelength range of 300-380 nm. The FESEM images showed that geometrical shape of Ni-doped ZnO nanostructures are nanorod with a hexag

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Ren, Haibo, Huaipeng Weng, Xumeng Dong, Jiarui Huang, and Sang Woo Joo. "Nickel-Doped ZnO Porous Sea Urchin Nanostructures with Various Amounts of Oxygen Defects for Volatile Organic Compound Detection." Chemosensors 11, no. 4 (2023): 223. http://dx.doi.org/10.3390/chemosensors11040223.

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Porous sea urchin-like nickel-doped ZnO with various nickel contents and high specific surface area were synthesized using a solution method followed by calcination. The nickel-doped ZnO products consisted of numerous porous nanoleaves. The Ni content in these products ranged from 5% to 20%. The Ni dopants in the ZnO lattice were verified by X-ray diffraction and X-ray photoelectron spectroscopy. The sensors based on nickel-doped ZnO sea urchins showed superior sensing performance for some volatile organic compounds (VOCs). ZnO sea urchins with 10% nickel doping exhibited the best gas-sensing

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23

Abdel All, N., J. El Ghoul, and G. Khouqeer. "Synthesis and Characterization of Ni-Doped ZnO Nanoparticles for CO₂ Gas Sensing." Journal of Nanoelectronics and Optoelectronics 16, no. 11 (2021): 1762–68. http://dx.doi.org/10.1166/jno.2021.3121.

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In this research, we synthesised nickel (Ni)-doped zinc oxide (ZnO) nanoparticles (NZ) with various atomic ratios of [Ni]/[Zn], i.e., 0.02, 0.04 and 0.06 using a simple sol–gel method. The synthesized materials were examined by different techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM) attached with energy dispersive spectroscopy (EDS), and transmission electron microscopy (TEM). The observed XRD results confirmed that all the prepared samples exhibited a hexagonal wurtzite structure with no additional secondary phases, confirming that Ni ions were successfully in

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24

Jeyachandran, Sivakamavalli, Hethesh Chellapandian, and Nemat Ali. "Advancements in Composite Materials and Their Expanding Role in Biomedical Applications." Biomimetics 8, no. 7 (2023): 518. http://dx.doi.org/10.3390/biomimetics8070518.

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The synthesis of a Ni-doped ZnO nanocomposite incorporating chitosan (CS/Ni-doped ZnO) was achieved via a precipitation method, followed by annealing at 250 °C. This study comprehensively examined the nanocomposite’s structural, functional, morphological, and porosity properties using various analytical techniques, including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), high-resolution scanning electron microscopy (HR-SEM), transmission electron microscopy (TEM), and Brunauer–Emmett–Teller (BET) analysis. The presence of chitosan (CS) and nickel (Ni) within the nanoc

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Shanmugam, Nadana, Vediyappan Thirumal, Natesan Kannadasan, et al. "Influence of Cerium and Nickel Co-Doping on ZnO Nanostructures for Electrochemical Behavior of H2O2 Sensing Applications." Sustainability 14, no. 10 (2022): 6353. http://dx.doi.org/10.3390/su14106353.

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The present paper reports facile synthesis by simple chemical precipitation method for Zinc Oxide (ZnO) nanoparticles with cerium (Ce) and nickel (Ni) co-doped ZnO nanocrystals. The different optimum conditions are analyzed in dual metallic (Ce/Ni) nanoparticles doped with ZnO nanoparticles. Successful incorporation of cerium and nickel is predicted with X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Additionally, optical effects were studied as-prepared active materials by UV-Visible reflectance (UV-Vis-DRS) and photoluminescence (PL) measurements at room temperature. In

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TAMILSELVI, D., N. VELMANI, and K. RATHIDEVI. "EFFECT OF Ni-DOPING ON THE STRUCTURAL AND OPTICAL PROPERTIES OF ZnO NANOPARTICLES PREPARED BY CHEMICAL PRECIPITATION METHOD." Journal of Ovonic Research 16, no. 2 (2020): 123–30. http://dx.doi.org/10.15251/jor.2020.162.123.

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Undoped ZnO nano particles and Ni doped ZnO nanoparticles prepared by chemical precipitation method and assessed for their structural, morphological and optical properties. The prepared undoped and Ni doped ZnO nanoparticles were characterized by using X-ray diffraction (XRD), Fourier transform infrared spectral (FTIR), UV-Visible spectrophotometer, Scanning electron microscopy (SEM) and Energy Dispersive X-ray analysis (EDAX), Photoluminescence spectra (PL). XRD pattern shows the purity of prepared undoped and Ni doped ZnO nanoparticles size. Scanning electron microscopy (SEM) observations re

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TAMILSELVI, D., N. VELMANI, and K. RATHIDEVI. "EFFECT OF Ni-DOPING ON THE STRUCTURAL AND OPTICAL PROPERTIES OF ZnO NANOPARTICLES PREPARED BY CHEMICAL PRECIPITATION METHOD." Journal of Ovonic Research 16, no. 2 (2020): 123–30. http://dx.doi.org/10.15251/jor.2020.161.123.

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Undoped ZnO nano particles and Ni doped ZnO nanoparticles prepared by chemical precipitation method and assessed for their structural, morphological and optical properties. The prepared undoped and Ni doped ZnO nanoparticles were characterized by using X-ray diffraction (XRD), Fourier transform infrared spectral (FTIR), UV-Visible spectrophotometer, Scanning electron microscopy (SEM) and Energy Dispersive X-ray analysis (EDAX), Photoluminescence spectra (PL). XRD pattern shows the purity of prepared undoped and Ni doped ZnO nanoparticles size. Scanning electron microscopy (SEM) observations re

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Godavarti, U., V. D. Mote, and M. Dasari. "Precipitated nickel doped ZnO nanoparticles with enhanced low temperature ethanol sensing properties." Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering 21, no. 4 (2021): 216–26. http://dx.doi.org/10.17073/1609-3577-2018-4-216-226.

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The Zn1-xNixO nanoparticles have been synthesized by novel co-precipitation method and systematically characterized by XRD, SEM, TEM and photo luminescence. The XRD patterns confirm the hexagonal wurzite structure without secondary phases in Ni substituted ZnO samples. SEM and TEM are used for the estimation of particle shape and size. In PL study there is a peak in the range of 380—390 nm in all samples that is attributed to the oxygen vacancies. Gas sensing tests reveal that Ni doped ZnO sensor has remarkably enhanced performance compared to pure ZnO detected at an optimum temperature 100 °C

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C, Vijayaraj, Nedunchezhian G, and Sozhaveni S. "Synthesis and Characterization of Ni Doped ZnO Nanoparticles and Study of their Antibacterial Activity." Indian Journal of Science and Technology 16, no. 43 (2023): 3927–33. https://doi.org/10.17485/IJST/v16i43.1404.

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Abstract <strong>Objective:</strong> The current study focused on the synthesis of Nickel doped ZnO nanoparticles from the sol‐gel technique. <strong>Methods:</strong> The pre-arranged nanopowder was described by XRD, FTIR, SEM, EDAX, and antibacterial investigations. The X‐ray diffraction studies uncover that the incorporated nanoparticles have a wurtzite structure and the molecule size differs from 18 to 31 nm. A change in morphology, after being doped with Nickel, has been noticed. <strong>Findings:</strong> The Energy Dispersive X‐Ray Analysis (EDAX) uncovers that

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Das, Bikram Keshari, Tanushree Das, Kajal Parashar, and S. K. S. Parashar. "Band Gap Tuning and ac Conductivity of Nanocrystalline Nickel Doped ZnO Synthesized by High Energy Ball Milling." Advanced Science Letters 24, no. 8 (2018): 5669–72. http://dx.doi.org/10.1166/asl.2018.12173.

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In the present work, Ni doped ZnO nanoparticles (Zn1−xNixO, x = 0,0.01) has been synthesized by High Energy Ball Milling technique. The synthesized nanoparticles have been characterized by XRD, UV-Vis spectroscopy and LCR meter. The XRD studies revealed that the synthesized nanoparticles are single phase, hexagonal wurtize structure and belongs to a space group of P63 mc. There is shifting of most intense XRD peaks toward higher diffraction angle with Ni doping. The lattice parameter and average crystallite size decreases with Ni doping. Doping of Ni reduces the band gap of ZnO. This is attrib

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Nur, Syafiqah Nadiah Mohd Alias, Arith Faiz, Syamimi Noorasid Nur, et al. "Study the effect of nickel and aluminium doped ZnO photoanode in DSSC." TELKOMNIKA (Telecommunication, Computing, Electronics and Control) 20, no. 5 (2022): 1117–24. https://doi.org/10.12928/telkomnika.v20i5.23013.

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Dye sensitized solar cells (DSSC) is one of the promising candidates which are efficient, low-cost, and clean hybrid molecular solar cell devices. Zinc oxide (ZnO) has been widely used as the phoanode in DSSC due to its excellent charge conduction mechanism, yet still suffers from poor cell efficiency. In this study, aluminium doped ZnO (ZnO:Al) and Ni doped ZnO (ZnO:Ni) were studied as photoanode material in DSSC using solar cell capacitance simulator (SCAPS) simulation, and the electrolyte liquid considered a single solid p-type layer as hole transporting materials. Both studied photoan

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Salleh, M. S., M. S. Aziz, M. F. Omar, et al. "The impact of nickel doping on the structural, morphological, optical and magnetic characteristics of zinc oxide nanorods." Journal of Physics: Conference Series 2974, no. 1 (2025): 012018. https://doi.org/10.1088/1742-6596/2974/1/012018.

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Abstract One-dimensional (1D) Ni-doped ZnO nanorods have been synthesised using two techniques: non-vacuum spray pyrolysis and sol-gel immersion. The work investigated the influence of Ni dopant on the structural, morphological, optical, and magnetic characteristics of undoped and Ni-doped ZnO nanorods by numerous analytical techniques including X-ray diffraction, scanning electron microscopy, UV-Vis spectrometer, and vibrating sample magnetometer. The Ni-doped material displays enhanced structural characteristics, such as vertically orientated nanorods with a high aspect ratio of 31.2 and a n

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Anithadevi, R., J. Kalpana, D. Shanthi, and C. Ravichandran. "The size dependence and defect induced room temperature ferromagnetism of ZnO and Zn 1-x-y AlxZyO (Z=Mg/Ni) nanocomposites." Journal of Ovonic Research 19, no. 5 (2023): 493–503. http://dx.doi.org/10.15251/jor.2023.195.493.

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In the current research, Al-Mg-ZnO and Al-Ni-ZnO nanocomposites were synthesized by using simple soft chemical route. Prepared nanocomposites of Al-Mg-ZnO and Al-Ni-ZnO with capsule shape distributed magnetite nanostructured were carried out under the calcinated at 120 C for 12 h in furnace. The structural morphology and characterization analysis of as prepared nanocomposites was analyzed by XRD, UV–vis. FTIR, PL, TEM, VSM studies. XRD analysis confirmed the highly pure crystallized cubic phases. The XRD peaks show that the crystalline sizes are of the order of 22 nm, 19 nm, and 11nm. Magnetic

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Rong, Ping, Shuai Ren, Jianchao Jiang, Qi Yu, Liyun Jiang, and Yonghong Zhang. "Preparation and Photocatalytic Properties of Metal-Doped ZnO Nanofilms Grown on Graphene-Coated Flexible Substrates." Materials 13, no. 16 (2020): 3589. http://dx.doi.org/10.3390/ma13163589.

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A series of metal element (Al, Fe, Mg and Ni)-doped ZnO (M-ZnO) photocatalysts have been successfully synthesized on graphene-coated polyethylene terephthalate (GPET) flexible substrate via the hydrothermal method. The effects of doped metals in ZnO were also studied on the crystal structure, morphology and photocatalytic performance. The photocatalytic experiment results indicated that, compared with Al-, Mg- and Fe-ZnO/GPET photocatalysts under ultraviolet (UV) light irradiation, Ni-ZnO/GPET had better photocatalytic activity, and the degradation rate of methylene blue (MB) was 81.17%. Meanw

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Destalina, Destalina, Fitriah Mujtahid, Inayatul Mutmainna, Dahlang Tahir, and Paulus L. Gareso. "XRD STRUCTURE STUDY ON NICKEL DOPED ZINC OXIDE NANOPARTICLES SYNTHESIZED BY COPRECIPITATION METHOD." Indonesian Physical Review 5, no. 3 (2022): 188–96. http://dx.doi.org/10.29303/ipr.v5i3.179.

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Nickel-doped Zinc Oxide (Zn(1-x)Ni(x)O) nanoparticles have been synthesized by the chemical coprecipitation method. The structure and characteristic of synthesized Ni doped ZnO nanoparticles ware analyzed by X-ray diffraction (XRD) patterns. Crystallite sizes and lattice strain of all samples were calculated using the Scherrer’s formula, Uniform Deformation Model (UDM) and Halder-Wagner (H-W) method. X-ray diffraction analysis confirmed hexagonal cubic structure of Ni-doped ZnO nanoparticles. Also, the crystallite size of the nanoparticles reduces as the nickel concentration increase. The resu

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Chen, Chang Yun, Quan Zhan Chen, Mei Shi, Feng Zhou, Chun Hua, and Huan Pang. "Nonstoichiometric Zinc Oxide Nanorod Arrays Doped Co or Ni as Effective Antimicrobial Materials." Advanced Materials Research 518-523 (May 2012): 760–63. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.760.

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Nonstoichiometric Zinc oxide (ZnO) nanorod arrays doped Co or Ni can be easily obtained by calicining soaked ZnO nanorod arrays. More importantly, the nonstoichiometric doped ZnO nanoarrays have more effective antimicrobial than pure ZnO nanoarrays, which means we can obtain a kind of promising new effective functional nanomaterials.

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Stolyarchuk, Ihor, Oleh Kuzyk, Olesya Dan’kiv, et al. "Growth of Zn1−xNixO Thin Films and Their Structural, Optical and Magneto-Optical Properties." Coatings 13, no. 3 (2023): 601. http://dx.doi.org/10.3390/coatings13030601.

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The radio frequency (RF) reactive sputtering technique has been used to prepare Zn1−xNixO thin films with 0 ≤ x ≤ 0.08. Composite targets were obtained by mixing and pressing NiO and ZnO powders. Sapphire, quartz and glass were used as substrates. X-ray diffraction analysis of Ni-doped ZnO films indicates that all samples are crystalised in a hexagonal wurtzite structure with a preferred orientation along the (002) plane. Any secondary phase, corresponding to metallic nickel clusters or nickel oxides was not observed. High-resolution transmission electron microscopy (HR-TEM) image observed for

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Hien, Nguyen Cao, Nguyen Hoc Thang, Tahir Mahmood, et al. "Simulation, synthesis, and characterization of Ni–Co and its co-doping in ZnO for energy applications." RSC Advances 15, no. 28 (2025): 22730–44. https://doi.org/10.1039/d5ra02746b.

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Pristine ZnO, ZnO doped with nickel (Ni), cobalt (Co), and their co-doped form (NiCo) nanoparticles were successfully synthesized via the sol–gel method to explore their potential for energy-related applications.

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Tan, Haifeng, Chunlin He, Jie Yang, et al. "Preparation and Properties of (Cu, Ni) Co-Doped ZnO Nanoparticle-Reinforced Cu-Ni Nanocomposite Coatings." Materials 16, no. 7 (2023): 2746. http://dx.doi.org/10.3390/ma16072746.

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Here, 2% Cu + 2% Ni co-doped ZnO nanoparticles were synthesized using the hydrothermal method and were used as particle reinforcements of Cu-Ni nanocomposite coatings prepared by electroplating technology. The effects of the added (Cu, Ni) co-doped ZnO nanoparticles (2–8 g/L) on the phase structure, surface morphology, thickness, microhardness, corrosion resistance, and photocatalytic properties of the coatings were investigated. The nanocomposite coatings have obvious diffraction peaks on the crystal planes of (111), (200), and (220), showing a wurtzite structure. The surface of the nanocompo

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Robles-Águila, M., J. Luna-López, Álvaro Hernández de la Luz, J. Martínez-Juárez, and M. Rabanal. "Synthesis and Characterization of Nanocrystalline ZnO Doped with Al3+ and Ni2+ by a Sol–Gel Method Coupled with Ultrasound Irradiation." Crystals 8, no. 11 (2018): 406. http://dx.doi.org/10.3390/cryst8110406.

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Zinc oxide is one of the most important semiconducting metal oxides and one of the most promising n-type materials, but its practical use is limited because of both its high thermal conductivity and its low electrical conductivity. Numerous studies have shown that doping with metals in ZnO structures leads to the modification of the band gap energy. In this work, Al-doped ZnO, Ni-doped ZnO, and undoped ZnO nanocrystalline powders were prepared by a sol–gel method coupled with ultrasound irradiation, and the results show the influence of Al3+ and Ni2+ ions in the ZnO network. The doping concent

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Liu, W. J., X. D. Tang, Z. Tang, W. Bai, and N. Y. Tang. "Oxygen Defects Mediated Magnetism of Ni Doped ZnO." Advances in Condensed Matter Physics 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/424398.

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Ni doped ZnO nanoparticles were synthesized by a solution route and annealed in O2, air, and Ar, respectively. X-ray diffraction and X-ray photoelectron spectroscopy measurements show that the samples possess typical wurtzite structure and have no other impurity phases. Magnetization loops for ZnO samples were measured and clearly show typical ferromagnetic saturation behavior. With the defect analysis based on photoluminescence spectroscopy, the effect of defects on the nature and origin of ferromagnetism was investigated. The results suggest that oxygen vacancies, especially single ionized o

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Yin, Qiaoqiao, Wenjie Wu, Ru Qiao, Xiaoxia Ke, Yong Hu, and Zhengquan Li. "Glucose-assisted transformation of Ni-doped-ZnO@carbon to a Ni-doped-ZnO@void@SiO2 core–shell nanocomposite photocatalyst." RSC Advances 6, no. 45 (2016): 38653–61. http://dx.doi.org/10.1039/c5ra26631a.

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Zou, Xiaowen, Xiaoli Dong, Limei Wang, Hongchao Ma, Xinxin Zhang, and Xiufang Zhang. "Preparation of Ni Doped ZnO-TiO2Composites and Their Enhanced Photocatalytic Activity." International Journal of Photoenergy 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/893158.

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Herein, Ni doped ZnO-TiO2composites were prepared by facile sol-gel approach and were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), UV-visible diffuse reflectance spectroscopy (UV-Vis DRS), X-ray photoelectron spectroscopy (XPS), and photoluminescence spectroscopy (PL). The results indicated that the Ni ions can be incorporated into the lattice of TiO2structure and replace Ti. The introduction of Ni expanded light absorption of TiO2to visible region, increased amount of surface hydroxyl groups and physically adsorbed oxygen (as the electronic scavenges), and

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Chubenko, E., I. Gerasimenko, V. Bondarenko, and D. Zhigulin. "Zinc Oxide Nanostructures Doped with Transition Metals: Fabrication and Properties." International Journal of Nanoscience 18, no. 03n04 (2019): 1940045. http://dx.doi.org/10.1142/s0219581x19400453.

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ZnO nanostructured films doped with Co and Ni deposited by hydrothermal method on silicon substrates covered with undoped ZnO sublayer were studied. SEM images of the films demonstrated them to consist of densely packed vertical nanopillars. Doping ZnO films with Ni or Co at concentrations up to [Formula: see text][Formula: see text]cm[Formula: see text] quenches their UV-excited photoluminescence. The doping also leads to the slight ferromagnetic behavior of ZnO.

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Singhal, R. K. "Room Temperature Ferromagnetism and its "Switch" Behaviour in some Dilute Magnetic Oxides: an Electronic Structure and Magnetization Study." Solid State Phenomena 171 (May 2011): 19–38. http://dx.doi.org/10.4028/www.scientific.net/ssp.171.19.

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ZnO doped with a few per cent of magnetic ions such as Ni, Fe, Co exhibits room temperature ferromagnetism (RTFM), transforming it into a very promising candidate for future spintronic applications. Two samples i.e. ZnO doped with Ni and Cr (5% each) have been investigated in the present work. The samples were characterized by Rietveld refinement of X-ray diffraction (XRD) patterns and the superconducting quantum interference device (SQUID) magnetometry. Rietveld analysis confirms that both the polycrystalline samples possess wurtzite structure with no evidence of any secondary phase. The SQUI

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Zafaran, Abdul Fattah. "SYNTHESIS AND CHARACTERIZATION OF NICKEL DOPED ZINC OXIDE NANOPARTICLES BY SOL – GEL METHOD." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 7 (2016): 418–29. https://doi.org/10.5281/zenodo.56998.

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Zinc Oxide (ZnO) referred to as II – VI semiconductor because Znic belong to the second group and oxygen belongs to the sixth group of the periodic table. As grown ZnO in n – type semiconductor and its n – type conductivity can be controlled by growing it in an oxygen deficient atmosphere or by doping it with group III element like Al, Ga, or In. High quality 3d doped ZnO samples were required to synthesize a functional DMS (diluted magnetic semiconductor) whose magnetic properties were controlled by changing the carrier concentration, which Implies that there was a need to i

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Alsaad, Ahmad M., Ahmad A. Ahmad, Qais M. Al-Bataineh, et al. "Optical, Structural, and Crystal Defects Characterizations of Dip Synthesized (Fe-Ni) Co-Doped ZnO Thin Films." Materials 13, no. 7 (2020): 1737. http://dx.doi.org/10.3390/ma13071737.

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Sol-gel technique is used to synthesize as-grown zinc oxide (ZnO) and iron-nickel (Fe-Ni) co-doped ZnO thin films deposited on glass substrates using dip coating technique. The structural properties and crystal imperfections of as-prepared thin films are investigated. We performed the structural analysis of films using X-ray diffraction (XRD). The XRD analysis reveal that the as-prepared films exhibit wurtzite structure. Furthermore, XRD-line profile analysis is performed to study the correlation between structural properties and imperfections of the nanocomposite thin films. The crystallite s

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Ahmad, Fiaz, and Asghari Maqsood. "Structural, dielectric, impedance, complex modulus, and optical study of Ni-doped Zn_(1−x)Ni_xO nanostructures at high temperatures." Materials Research Express 8, no. 11 (2021): 115005. http://dx.doi.org/10.1088/2053-1591/ac2fcd.

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Abstract This experiment addressed the effect of Nickel-doped on the dielectric, ac conductivity, and optical properties of pure and doped Zn (1−x) Nix O (x = 0, 3 and 6%) nanostructures. The un-doped and Ni-doped ZnO nanostructures were synthesized using co-precipitation. In this paper, the frequency-dependent dielectric and the electrical conductivity of un-doped and Ni-doped Zn (1−x) Nix O nanostructures were examined at various temperatures ranging from 320 K to 460 K using an LCR meter. For the morphological and optical investigation, the prepared samples were analyzed using field emissio

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FELNER, I., R. HERBER, SOMOBRATA ACHARYA, and V. P. S. AWANA. "THE ORIGIN OF FERROMAGNETISM IN Ni-DOPED ZnO AND SnO2." Modern Physics Letters B 24, no. 02 (2010): 125–34. http://dx.doi.org/10.1142/s0217984910022329.

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We present a detailed study of the ferromagnetism in nano- Ni -doped SnO 2 and ZnO . It is shown that the ferromagnetic behavior is not an intrinsic property of the systems but rather associated with the presence of n Ni particles in both matrices. The ferromagnetic transition of all Ni -doped samples is at 631(2) K, the same as the TC value for bulk Ni and nano- Ni powder. The saturation moments of the nano- Ni -doped samples scale with the Ni concentration and are much lower than that of pure Ni . This is due to the large surface area of nano- Ni particles which are partially oxidized due to

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Zeng, W. J., Y. Zhuang, M. Khan, X. T. Ning, L. F. Shan, and B. Zeng. "Ni-doped ZnO nanorods/Ti3C2 MXene composites and their photocatalytic performance." Digest Journal of Nanomaterials and Biostructures 19, no. 3 (2024): 1107–16. http://dx.doi.org/10.15251/djnb.2024.193.1107.

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Herein, composites based on Ni-doped ZnO nanorods and Ti3C2 MXene structure (Ni-ZnO NR/Ti3C2) were produced via a simple hydrothermal method for photocatalytic applications. Special attention was paid to their structural and optical properties. The composite exhibited a photocatalytic effectiveness of 88.2% in degrading methyl orange (MO) within a duration of 75 minutes when exposed to a xenon lamp. The enhancement of the catalytic activity was due to the one-dimensional ZnO nanostructure, the Ni doping, and the Schottky heterojunction is formed by the interface within ZnO and Ti3C2. Therefore

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