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Journal articles on the topic 'WO₃ Sol-gel synthesis'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Kaper, Helena, Igor Djerdj, Silvia Gross, Heinz Amenitsch, Markus Antonietti, and Bernd M. Smarsly. "Ionic liquid- and surfactant-controlled crystallization of WO3 films." Physical Chemistry Chemical Physics 17, no. 27 (2015): 18138–45. http://dx.doi.org/10.1039/c5cp01869b.

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2

Wang, Liqun, Zihao Zhai, and Longnan Li. "Rapid Fabrication of Tungsten Oxide-Based Electrochromic Devices through Femtosecond Laser Processing." Micromachines 15, no. 6 (2024): 785. http://dx.doi.org/10.3390/mi15060785.

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The sol-gel method is a widely adopted technique for the preparation of tungsten trioxide (WO₃) materials, favored for its cost-effectiveness and straightforward production procedures. However, this method encounters challenges such as prolonged annealing periods and limited flexibility in fabricating patterned WO₃ films. This study introduces a novel approach that integrates femtosecond laser processing with the sol-gel method to enhance the fabrication of WO₃ films. By adjusting polyvinylpyrrolidone (PVP) concentrations during sol-gel synthesis, precise control over film thickness and optimi

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3

Sreesattabud, T., Anucha Watcharapasorn, and Sukanda Jiansirisomboon. "Fabrication and Characterization of Sol-Gel Derived PZT/WO₃ Ceramics." Advanced Materials Research 55-57 (August 2008): 369–72. http://dx.doi.org/10.4028/www.scientific.net/amr.55-57.369.

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Lead zirconate titanate/tungsten oxide (PZT/WO3) ceramics were prepared from the powders synthesized by a modified triol sol-gel processing method. In this study, the starting materials used for synthesis of PZT-sol were zirconium (IV) propoxide, titanium (IV) isopropxide, lead (II) acetate trihydrate and 1,1,1,- tris (hydroxymethyl) ethane. To prepare PZT/xWO3 powders (where x = 0, 0.5, 1 and 3 wt%), nano-sized WO3 was ultrasonically dispersed and mixed with the PZT sol, dried and calcined at 600°C for 4 h. X-ray diffraction results indicated that fully crystallized powders were obtained. Pha

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4

Au, B. Wen Cheun, Kah Yoong Chan, Wai Leong Pang, Chu Liang Lee, and Abd Hamid Mustafa. "Tungsten Oxide (WO₃) Films Prepared by Sol-Gel Spin-Coating Technique." Solid State Phenomena 280 (August 2018): 71–75. http://dx.doi.org/10.4028/www.scientific.net/ssp.280.71.

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Tungsten oxide (WO3) is a transition metal oxide with a wide range of applications such as displays, rear-view mirrors, electrochromic (EC) smart windows and gas sensors. Many techniques were adopted for the fabrication of WO3, namely magnetron sputtering, spray pyrolysis and sol-gel synthesis techniques. In this work, WO3films were deposited on indium tin oxide (ITO) coated glasses by sol-gel spin-coating method. The film thickness was varied by depositing different number of layers. The WO3film thickness and optical transmittance were determined using step profilometer and ultraviolet-visibl

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5

Durairajan, A., D. Balaji, K. Kavi Rasu, et al. "Sol–gel synthesis and photoluminescence analysis of Sm 3+ :NaGd(WO 4 ) 2 phosphors." Journal of Luminescence 170 (February 2016): 743–48. http://dx.doi.org/10.1016/j.jlumin.2015.08.013.

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6

Bazarov, B. G., S. G. Dorzhieva, R. Y. Shendrik, et al. "Synthesis and luminescent properties of new tungstates Ln<sub>2</sub>Zr(WO<sub>4</sub>)<sub>5</sub> (Ln = Tb, Dy)." Chimica Techno Acta 9, no. 2 (2022): 20229205. http://dx.doi.org/10.15826/chimtech.2022.9.2.05.

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New polycrystalline powder samples of double Ln2Zr(WO4)5 (Ln = Dy, Tb) tungstates were synthesized using high-temperature solid-phase and sol-gel methods. The conditions of the sol-gel synthesis of tungstates were optimized. The obtained phases were characterized by the X-ray powder diffraction on the basis of the crystallographic data of similar Ln–Zr molybdates. It is found that Ln2Zr(WO4)5 (Ln = Dy, Tb) double tungstates crystallize in the orthorhombic crystal system, space group Cmc21 (Z = 4). The intensive luminescence in the green spectral region for Tb2Zr(WO4)5 and yellow spectral regio

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7

Kim, Chang Yeoul, Jin Wook Choi, Tae Yeoung Lim, and Duck Kyun Choi. "Synthesis of WO₃ Electrochromic Sensor by Sol-Gel Method and Characterization of Its Electrochemical and Optical Properties." Key Engineering Materials 317-318 (August 2006): 807–10. http://dx.doi.org/10.4028/www.scientific.net/kem.317-318.807.

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Electrochromic WO3 thin film was prepared by using tungsten metal solution in hydrogen peroxide as a starting solution and by sol-gel dip coating method. XRD pattern showed that tungsten oxide crystal phase formed at 400. In the view of electrochemical property, WO3 thin film which was heat-treated at 300 and was amorphous had better than that of the crystalline phase.

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8

Nagarjuna, Ravikiran, Swapna Challagulla, Pooja Sahu, Sounak Roy, and Ramakrishnan Ganesan. "Polymerizable sol–gel synthesis of nano-crystalline WO 3 and its photocatalytic Cr(VI) reduction under visible light." Advanced Powder Technology 28, no. 12 (2017): 3265–73. http://dx.doi.org/10.1016/j.apt.2017.09.030.

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9

Arefieva, Olga D., Marina S. Vasilyeva, Praskovya I. Mitkina, Aleksandra I. Slavenskaya, and Valery G. Kuryavy. "Synthesis and characterization of SiO₂/Bi₂WO₆ based on biogenic silica synthesized by sol-gel method." MATEC Web of Conferences 376 (2023): 01004. http://dx.doi.org/10.1051/matecconf/202337601004.

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SiO2/Bi2WO6 photocatalyst with Si/Bi/W=1:2:1 molar ratio was obtained by the sol-gel method from bismuth nitrate, sodium tungstate and biogenic silica from rice husk biomass followed by calcination. Bi2WO6 was used as a control sample. FT-IR, SEM, XRD, EDXRF, UV-Vis methods were used to systematically characterize the as-obtained materials. Photodegradation of Indigo Carmine in exposure to UV, sunlight and xenon light was studied to evaluate their photocatalytic activities in the presence of SiO2/Bi2WO6 and Bi2WO6. It was shown that the degradation degree of Indigo Carmine in the presence of S

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10

Jia, Peiyun, Xiaoming Liu, Yan Luo, Min Yu, and Jun Lin. "Sol-Gel Synthesis and Characterization of SiO[sub 2]@NaGd(WO[sub 4])[sub 2]:Eu[sup 3+] Core-Shell-Structured Spherical Phosphor Particles." Journal of The Electrochemical Society 154, no. 1 (2007): J39. http://dx.doi.org/10.1149/1.2392601.

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11

Hussain, Sk Khaja, and Jae Su Yu. "Sol-gel synthesis of Eu 3+ /Bi 3+ ions co-doped BaLa 2 WO 7 phosphors for red-LEDs under NUV excitation and FEDs applications." Journal of Luminescence 183 (March 2017): 39–47. http://dx.doi.org/10.1016/j.jlumin.2016.11.003.

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12

Lim, Chang Sung. "Synthesis of NaY(WO₄)₂:Ho³⁺/Yb³⁺ Phosphors via The Microwave-Modified Sol-Gel Route and Their Upconversion Photoluminescence Properties." Journal of the Korean Ceramic Society 52, no. 1 (2015): 66–71. http://dx.doi.org/10.4191/kcers.2015.52.1.66.

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13

Khudoyberdiyeva, Sabina Murodjonovna, and Mavjuda Ergashboyevna Eshobilova. "DESIGN AND OPERATING PRINCIPLE OF A SEMICONDUCTOR SENSOR FOR METHANE AND NATURAL GAS." Research Focus International Scientific Journal 4, no. 5 (2025). https://doi.org/10.5281/zenodo.15512554.

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<strong>DESIGN AND OPERATING PRINCIPLE OF A SEMICONDUCTOR SENSOR FOR METHANE AND NATURAL GAS</strong> <strong>Khudoyberdiyeva Sabina</strong><strong> Murodjonovna</strong> Student at the Samarkand State University of Architecture and Construction <strong>Eshobilova Mavjuda Ergashboyevna</strong> Associate Professor at the Samarkand State Medical University <strong>https://doi.org/10.5281/zenodo.15512554</strong> <strong>Abstract</strong>: This paper presents the design and operational principles of a semiconductor-based gas sensor specifically engineered for the detection of methane (CH₄) and

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14

Zengin, Yasar, Busra Kaya, Mehtap Safak Boroglu, and Ismail Boz. "Microwave-Assisted Facile Sol–Gel Synthesis of WO₃-Based Silica Catalysts for Enhanced Activity in Glycerol Dehydration." Industrial & Engineering Chemistry Research, January 20, 2023. http://dx.doi.org/10.1021/acs.iecr.2c03856.

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15

Khodieva, Nargiza Djurakulovna, and Mavjuda Ergashboyevna Eshkobilova. "RESPONSE TIME AND RECOVERY TIME OF A SEMICONDUCTOR SENSOR FOR DETECTING METHANE AND NATURAL GAS." Research Focus International Scientific Journal 4, no. 5 (2025). https://doi.org/10.5281/zenodo.15512498.

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<strong>RESPONSE TIME AND RECOVERY TIME OF A SEMICONDUCTOR SENSOR FOR DETECTING METHANE AND NATURAL GAS</strong> <strong>K</strong><strong>hodieva Nargiza Djurakulovna</strong> Assistant at the Samarkand State architectural and civil-engineering university <strong>Eshkobilova Mavjuda Ergashboyevna</strong> Associate Professor at the Samarkand State Medical University <strong>https://doi.org/10.5281/zenodo.15512498</strong> <strong>Abstract</strong>: The response and recovery times of gas sensors provide insights into their dynamic behavior and are determined through experimental methods. The r

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16

Ngigi, Eric M., Philiswa N. Nomngongo, Alex M. Muthengi, Joseph K. Mworia, and Jane C. Ngila. "Sol–Gel Synthesis of Mn₂O₃–WO₃ Nanocomposites for the Photocatalytic Degradation of Mixed Parabens." ChemistrySelect 10, no. 23 (2025). https://doi.org/10.1002/slct.202501255.

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AbstractPharmaceutical and personal care products (PPCPs) are emerging environmental contaminants because of their potential and persistent adverse impacts on human and animal health. This study aims to synthesize WO3 and Mn2O3–WO3 nanocomposites using the sol–gel method as potential degraders of mixed parabens. When exposed to visible light, these nanocomposites show enhanced photocatalytic efficiency for the removal of mixed parabens, such as methylparaben and propylparaben. Transmission electron microscopy (TEM) analysis of the nanocomposites revealed that the ovoid‐like WO3 and rod‐like Mn

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17

Thuy, Pham Thi, Bui Thi Cam Hue, Nguyen Xuan Sang, Long Phuoc Lieu, and Le Thi Thanh Thuy. "Synthesis of ZnO-TiO₂-WO₃ tertiary heterojunction for improved photocatalytic degradation of dyes using visible light." Materials Research Express, June 27, 2024. http://dx.doi.org/10.1088/2053-1591/ad5cdb.

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Abstract A ZnO-TiO2-WO3 tertiary heterojunction was synthesized using the facile sol gel and calcination methods from Zn (II), Ti (IV) and W (VI) precursors. The ZnO-TiO2-WO3 material exhibits remarkable photocatalytic performance, settling the obstacles of the pristine ZnO, TiO2, and WO3 materials. The results indicate that the composite material possesses a nanoparticle morphology alongside individual component phases. Inclusion of WO3 expands the absorption range of the composite material towards the visible region and reduces the recombination of photogenerated electron-hole pairs compared

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18

Dung, Mai Xuan, Mai Van Tuan, Pham Truong Long, and Nguyen Thi Mai. "Tuning the Emission Color of Hydrothermally Synthesized Carbon Quantum Dots by Precursor Engineering." VNU Journal of Science: Natural Sciences and Technology 35, no. 1 (2019). http://dx.doi.org/10.25073/2588-1140/vnunst.4831.

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Water-soluble, biocompatible, and highly luminescence carbon quantum dots (CQDs) have synthesized successfully from a citric acid (CA) and ethylenediamine (EDA) by using different approaches. Although the emission quantum yield of CQDs could be as high as 80% their emission spectrum is usually dominated by surface fluorophore groups and maximized at about 450 nm. Herein, we examined the effects of acid and amine precursors on the photoluminescence (PL) of resulting CQDs by systematic comparison the optical properties of CQDs obtained from CA, PA (phthalic acid) and EDA, ANL (aniline). UV-vis a

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