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Journal articles on the topic 'Solvothermal method'

Author: Grafiati

Published: 4 June 2021

Last updated: 18 June 2025

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1

Kim, A.-Young, Hyun Soo Kim, No-Kuk Park та ін. "Low Temperature Synthesis of Hexagonal Shapedα-Al2O3Using a Solvothermal Method". Journal of Nanomaterials 2012 (2012): 1–7. http://dx.doi.org/10.1155/2012/907503.

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This study demonstrates the low temperature synthesis ofα-Al2O3by solvothermal method using gibbsite alumina precursor in 1, 4-butanediol solvent according to various pH conditions. In acidic solution, an orthorhombic boehmite (AlOOH) structure was obtained after solvothermal reaction. A significant result in this study was that the solvothermally synthesized alumina inpH=9at 300 °C for 36 h represented a rhombohedralα-Al2O3structure hexagonal shaped with about 1.5~2.0 μm of particle size. Otherwise, theα-Al2O3structure was rather changed to the mixture of a boehmite andα-Al2O3structures abovepH=11. In the case ofα-Al2O3synthesized atpH=9, the specific surface area was 26.18 m2/g, and the particles that were stable in acidic solution resulted in 61.80 mV of zeta potential.

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2

Ahmad, Ayla, Xiangchao Meng, Nan Yun, and Zisheng Zhang. "Preparation of Hierarchical BiOBr Microspheres for Visible Light-Induced Photocatalytic Detoxification and Disinfection." Journal of Nanomaterials 2016 (2016): 1–10. http://dx.doi.org/10.1155/2016/1373725.

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Photocatalytic degradation is a promising alternative to traditional wastewater treatment methods. Recently developed visible light-responsive photocatalyst, BiOBr, has attracted extensive attentions. Hereby, a detailed investigation of application of BiOBr to bacterial inactivation and organic pollutants degradation is reported. Hydrothermal catalyst was prepared using template-free method. While, for solvothermal synthesis, CTAB was used as a template. Results indicate a higher photocatalytic activity by the solvothermally prepared catalyst. Solvothermally prepared BiOBr exhibited high photocatalytic activities in both water detoxification and disinfection.

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3

AKA, Cemal, and Mustafa AKYOL. "Effect of Synthesizing Process on the Formation of Fe3O4 Magnetic Nanoparticles." Cumhuriyet Science Journal 44, no. 3 (2023): 504–9. http://dx.doi.org/10.17776/csj.1284327.

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In this work, the effect of synthesizing process on the morphology, structure, and magnetic properties of Fe3O4 magnetic nanoparticles have been studied by performing X-ray diffraction, scanning electronic microscopy, and vibrating sample magnetometer measurements. Fe3O4 nanoparticles were synthesized by hydrothermal and solvothermal methods. X-ray diffraction analysis revealed that both samples have cubic crystal phase. However, Fe2O3 impurity peaks were observed in the sample synthesized by hydrothermal method. The crystallite sizes of samples synthesized by hydrothermal and solvothermal methods were approximately 38 and 24 nm, respectively. The scanning electron microscope images show that spherical porous and cubic shape Fe3O4 nanoparticles were obtained by solvothermal and hydrothermal method, respectively. The average particle sizes of Fe3O4 samples synthesized by hydrothermal and solvothermal methods were determined as 220 and 450 nm, respectively. Both samples behave a soft ferromagnetic characteristic having almost zero coercive field. The magnetic saturation values of Fe3O4 nanoparticles synthesized by hydrothermal and solvothermal methods were determined as 28.78 and 77.31 emu/g, respectively. As a result of the characterizations, porous Fe3O4 nanoparticles synthesized by solvothermal method show better crystal structure, morphological and magnetic properties than Fe3O4 nanoparticles synthesized by hydrothermal method.

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4

Setthaya, Naruemon, Prinya Chindaprasirt, and Kedsarin Pimraksa. "Preparation of Zeolite Nanocrystals via Hydrothermal and Solvothermal Synthesis Using of Rice Husk Ash and Metakaolin." Materials Science Forum 872 (September 2016): 242–47. http://dx.doi.org/10.4028/www.scientific.net/msf.872.242.

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Synthesis of zeolite nanocrystals from rice husk ash and metakaolin was studied. Hydrothermal and solvothermal methods at 120 °C for 6 h were used as comparative study. Starting mixes were prepared with SiO2/Al2O3 molar ratio of 4. Two factors; stirring time before hydrothermal and solvothermal treatments and solvent types were studied. The synthesized products were characterized in terms of mineralogy using X-ray diffraction, specific surface area using N2 adsorption and desorption isotherm, morphology and composition using scanning electron microscopy and electron dispersion X-ray analysis. The results showed that faujasite and zeolite P1 were obtained from both of hydrothermal and solvothermal methods. However, crystals sizes of the synthesized zeolites from solvothermal method were smaller than that of hydrothermal method in that 100-300 nm and 100-1500 nm for solvothermal and hydrothermal methods, respectively. Specific surface area of the zeolites obtained from hydrothermal and solvothermal methods were 418 and 487 m2/g, respectively.

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Sugiarti, Sri, Idayu Safitri, and Noviyan Darmawan. "Comparing Three Methods for Producing Carbon Dots from Mangosteen Peel." Jurnal Pijar Mipa 19, no. 2 (2024): 288–94. http://dx.doi.org/10.29303/jpm.v19i2.4986.

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Carbon dots are fluorescent nanoparticles that are around 10 nm in size. Carbon dots can be formed via pyrolysis, hydrothermal, and solvothermal procedures from raw materials such as mangosteen peels. Because it contains cyanidin and xanthone, which improve the intensity of carbon dot fluorescence, mangosteen peel waste can be utilized to make carbon dots. The presence of a urea passivation agent is expected to boost carbon dot luminescence intensity. The study aimed to develop carbon dots from mangosteen peel using three different methods: pyrolysis, hydrothermal, and solvothermal, and to assess their ability to produce luminous hues. Carbon dot yield was 21% by the solvothermal method, 5% by the hydrothermal method, and 2% by pyrolysis. All three methods produced blue carbon dot luminescence. The solvothermal method, hydrothermal procedure, and pyrolysis had the highest luminescence intensity. Adding urea as a passivation agent increased the luminescence of carbon dots. The solvothermal approach produced the highest carbon dot production and fluorescence intensity. The hydrothermal and solvothermal carbon dots made emissions at wavelengths of 413 nm and 454 nm, respectively, both corresponding to blue luminescence.

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6

Kim, Ki-Hyun, Young-Gab Chun, Byung-Ok Park, and Kyung-Hoon Yoon. "Synthesis of CuInSe2Nanoparticles by Solvothermal Method." Korean Journal of Materials Research 14, no. 10 (2004): 737–42. http://dx.doi.org/10.3740/mrsk.2004.14.10.737.

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7

Deshpande, M. P., Pallavi Sakariya, Sandip V. Bhatt, Kamakshi R. Patel, Nikita H. Patel, and S. H. Chaki. "Sb2S3 Microspheres Prepared by Solvothermal Method." Advanced Science Letters 20, no. 5 (2014): 1102–6. http://dx.doi.org/10.1166/asl.2014.5498.

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8

Cao, Chuan-Bao, Qiang Lv, and He-Sun Zhu. "Carbon nitride prepared by solvothermal method." Diamond and Related Materials 12, no. 3-7 (2003): 1070–74. http://dx.doi.org/10.1016/s0925-9635(02)00309-6.

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9

Zheng, Ke-yu, Nian Wei, Feng-xia Yang, Duan-ming Zhang, and Ya-jun Qi. "KTa0.4Nb0.6O3 nanoparticles synthesized through solvothermal method." Frontiers of Physics in China 2, no. 4 (2007): 436–39. http://dx.doi.org/10.1007/s11467-007-0052-1.

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10

Tan, Guo Qiang, Hong Yan Miao, Hui Jun Ren, Zhi Wei Yu, Jia Li, and Hui Qin Li. "Synthesizing Silicon Nitride Whiskers by Solvothermal and Carbothermal Methods." Key Engineering Materials 368-372 (February 2008): 868–70. http://dx.doi.org/10.4028/www.scientific.net/kem.368-372.868.

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Xerogel was prepared by the sol-gel method using ethyl ester orthosilicate, alcohol, carbamide and glucose with various contents as raw materials. The precursor powders were obtained after xerogel was solvothermally treated at 220oC for 2.5 h. IR analyses showed that the Si-O-Si and Si-O-NH2 bond are obtained in the precursors. XRD analyses indicated that the powders prepared by the solvothermal method are amorphous. Si3N4 powders are produced by heat-treating the precursors at 1400 oC in N2. It was proved that the synthesized powders are α–Si3N4 whiskers. With the increase of the glucose contents and the heat-treating temperature, the crystallization of Si3N4 is obviously improved.

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11

Yelzhanova, Zhuldyz, Gaukhar Nigmetova, Damir Aidarkhanov, et al. "A Morphological Study of Solvothermally Grown SnO2 Nanostructures for Application in Perovskite Solar Cells." Nanomaterials 12, no. 10 (2022): 1686. http://dx.doi.org/10.3390/nano12101686.

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Tin(IV) oxide (SnO2) nanostructures, which possess larger surface areas for transporting electron carriers, have been used as an electron transport layer (ETL) in perovskite solar cells (PSCs). However, the reported power conversion efficiencies (PCEs) of this type of PSCs show a large variation. One of the possible reasons for this phenomenon is the low reproducibility of SnO2 nanostructures if they are prepared by different research groups using various growth methods. This work focuses on the morphological study of SnO2 nanostructures grown by a solvothermal method. The growth parameters including growth pressure, substrate orientation, DI water-to-ethanol ratios, types of seed layer, amount of acetic acid, and growth time have been systematically varied. The SnO2 nanomorphology exhibits a different degree of sensitivity and trends towards each growth factor. A surface treatment is also required for solvothermally grown SnO2 nanomaterials for improving photovoltaic performance of PSCs. The obtained results in this work provide the research community with an insight into the general trend of morphological changes in SnO2 nanostructures influenced by different solvothermal growth parameters. This information can guide the researchers to prepare more reproducible solvothermally grown SnO2 nanomaterials for future application in devices.

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Riska, Riska, Marpongahtun Marpongahtun, and Saharman Gea. "Synthesis and characterization nitrogen-doped carbon dots from candlenut shells using hydrothermal and solvothermal methods." Jurnal Pendidikan Kimia 16, no. 1 (2024): 15–22. http://dx.doi.org/10.24114/jpkim.v16i1.56957.

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Candlenut shells can be utilized as precursors for Carbon Dots (CDs) since new nanoscale materials have been proven using lignin, cellulose, hemicellulose, and carbon present in candlenut shells. A carbon substance smaller than 10 nm in size, CDs have special optical properties. This research focuses on the synthesis of CDs and Nitrogen Carbon Dot (NCDs) from hazelnut shell using urea passivation agent by hydrothermal and solvothermal methods, to determine the effect of solvent on the emission produced by CDs and NCDs. Hazelnut shell was carbonized at 300°C for 6 hours. The synthesis of CDs and NCDs was carried out at 220°C for 8 hours, then sonicated at 75°C for 30 minutes. The synthesis results were centrifuged at 5000 rpm for 30 minutes, filtered using Whatman No.42 filter paper. Analysis with a 365 nm UV lamp produced bluish green luminescence, brighter luminescence was shown in NCDs by solvothermal method. UV-Vis spectra showed absorbance peaks of 289-309 nm for CDs and 335-350 nm for NCDs. FTIR spectra of CDs and NCDs produced OH, CH, C=C, C=O, C-N, CO, and C-O-C functional groups. Photoluminescence analysis showed emission peaks of CDs and NCDs at 494 nm and 496 nm for hydrothermal method, for solvothermal method at 418 nm and 432 nm. CDs and NCDs with hydrothermal method showed higher intensity than with solvothermal method. The quantum yield values obtained were 11.4226% and 25.7419% and 10.2555% and 11.7473% for hydrothermal and solvothermal methods, respectively. Solvothermal method was effective for the synthesis of CDs and NCDs with brighter luminescence.

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13

Huang, He, Na Liu, Xueying Wang, Mei Zhong, and Xueli Huang. "Application of Hydrothermal and Solvothermal Method in Synthesis of MoS2." Revista de Chimie 73, no. 4 (2022): 26–35. http://dx.doi.org/10.37358/rc.22.4.8544.

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Hydrothermal and solvothermal method were considered as the effective methods for preparation of MoS2 nanomaterials. The current researches of MoS2 mainly concerned on electrical properties, the research of reaction system was relatively less. In this paper, synthesis system of MoS2 was elaborated from precursor, solution, reductant, sulfurizing agent, additive and pH regulator. The application of multifunctional raw materials can greatly simplify reaction system. This provided a reference for the application of hydrothermal and solvothermal method in preparation of MoS2.

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14

Iwatsuki, Shogo, Takayuki Goto, Masatoshi Kera, Kouichi Nakashima, Ichiro Fujii, and Satoshi Wada. "Preparation of Barium Titanate-Coated Strontium Titanate Accumulation Ceramics by Solvothermal Synthesis and their Dielectric Property." Key Engineering Materials 566 (July 2013): 289–92. http://dx.doi.org/10.4028/www.scientific.net/kem.566.289.

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Solvothermally synthesized strontium titanate (SrTiO3, ST) or barium titanate (BaTiO3, BT) nanocubes were accumulated and the dielectric properties were studied. Initially, the BT or ST nanocubes were pressed into pellets. BT was deposited on the pellets by a solvothermal method. P-E hysteresis loops and S-E curves of BT-coated ST accumulation ceramics (BT on ST) showed ferroelectric responses. The dielectric constant of the accumulation ceramics was measured to be 70.6.

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. Ediati, R., S. K. Dewi, M. R. Hasan, M. . Kahardina, I. K. Murwani, and M. . Nadjib. "MESOPOROUS HKUST-1 SYNTHESIZED USING SOLVOTHERMAL METHOD." Rasayan Journal of Chemistry 12, no. 03 (2019): 1653–59. http://dx.doi.org/10.31788/rjc.2019.1231968.

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16

WU, Rong, Nan-Nan JIANG, Jing LI, Ji-Kang JIAN, and Ai-Min CHANG. "Synthesis of ZnSe Nanomaterials via Solvothermal Method." Journal of Inorganic Materials 28, no. 6 (2013): 579–83. http://dx.doi.org/10.3724/sp.j.1077.2013.12401.

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17

Chen, Qingyun, and Di Ma. "Preparation of Nanostructured Cu2SnS3Photocatalysts by Solvothermal Method." International Journal of Photoenergy 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/593420.

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Nanostructured Cu-Sn-S powder was prepared by a relatively low-cost, simple, and green solvothermal method. Flower-like Cu2SnS3nanostructures were successfully synthesized in 50 vol% ethanol water solution at 200 °C for 7.5 h. The structure and photophysical properties of the as-obtained samples were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and UV-Vis diffusion reflectance spectroscopy. Results showed that the cubic and tetragonal Cu2SnS3was obtained by varying the ethanol contents. The band-gap energy of tetragonal Cu2SnS3nanocrystals is near the optimum for photovoltaic solar conversion in a single band-gap device.

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18

Pal, Mou, N. R. Mathews, R. Silva Gonzalez, and X. Mathew. "Synthesis of Cu2ZnSnS4 nanocrystals by solvothermal method." Thin Solid Films 535 (May 2013): 78–82. http://dx.doi.org/10.1016/j.tsf.2012.11.043.

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19

Zhang, Xudong, Hong Liu, Wen He, Jiyang Wang, Xia Li, and Robert I. Boughton. "Novel synthesis of YAG by solvothermal method." Journal of Crystal Growth 275, no. 1-2 (2005): e1913-e1917. http://dx.doi.org/10.1016/j.jcrysgro.2004.11.274.

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20

Bozkurt, Pinar Acar, and Burak Derkuş. "Synthesis and characterization of CdS nanorods by combined sonochemical-solvothermal method." Materials Science-Poland 34, no. 3 (2016): 684–90. http://dx.doi.org/10.1515/msp-2016-0089.

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AbstractCadmium sulfide (CdS) nanorods with a diameter of 50 nm and length of approximately 200 nm have been synthesized using combined sonochemical-solvothermal method. Structural properties of CdS nanoparticles synthesized by this method have been compared with the CdS nanoparticles synthesized by sonochemical method alone. The synthesized CdS nanostructures have been characterized using X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX) and transmission electron microscopy (TEM) methods. In addition, the factors affecting the formation of the structures, including reaction time, different type and ratio of precursors, such as sulphur source, have been investigated. Comparison of the results obtained by both the synthesis methods revealed CdS nanoparticles synthesized by the combined sonochemical-solvothermal method to be of high morphological homogeneity compared to the sonochemical method alone. It is interesting to note that ethylenediamine has been found to be prevented from agglomeration by using the combined sonochemical-solvothermal method as the synthesis method. A modified growth mechanism under the inducement of ethylenediamine solutions for the CdS nanorods has been suggested.

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Zhang, Quan, Wei Hui Jiang, Jian Min Liu, Guo Feng, and Gui Rong Xu. "Low Temperature Synthesis of Ultrafine Al₂TiO₅ Powders by Hydrolytic Sol-Gel Method." Materials Science Forum 848 (March 2016): 324–27. http://dx.doi.org/10.4028/www.scientific.net/msf.848.324.

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Aluminum titanate (AT) ultrafine powder with high productivity ratio was prepared via hydrolytic sol-gel (HSG) method at 1250 °C, using aluminum nitrate (Al (NO3)3·9H2O) and titanium tetrachloride (TiCl4) as precursors, ethanol as solvent through solvothermal treatment process. Water required for hydrolysis reaction was supplied by the crystal water of aluminum nitrate itself. The effect of process parameters including filling ratio, solvothermal temperature and soaking time on the synthesis of AT powder was investigated by means of X-ray diffraction (XRD) and scanning electron microscopy (SEM). The cause of low temperature synthesis of AT was investigated. The result showed that excessive or insufficient filling ratio, too high or low solvothermal temperature, too long soaking time was not beneficial for the preparation of AT. The optimized ultrafine AT powder appeared at the decomposition temperature of 1250 °C with average particle size less than 1μm at a relatively high productivity ratio of 98 % with filling ratios of 60 %, solvothermal temperatures of 130 °C and soaking time of 30 min. The refinement of particles in the AT xerogel through solvothermal treatment process, and increasing reactivity of precursor, plays the key role in the low temperature synthesis of AT.

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22

Han, Jian, Yannan Liang, Jun Yu, Guisheng Wu, and Dongsen Mao. "Exploring the Effect of the Solvothermal Time on the Structural Properties and Catalytic Activity of Cu-ZnO-ZrO2 Catalysts Synthesized by the Solvothermal Method for CO2 Hydrogenation to Methanol." Catalysts 14, no. 6 (2024): 390. http://dx.doi.org/10.3390/catal14060390.

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A series of Cu-ZnO-ZrO2 (CCZ) catalysts were prepared by the solvothermal method with different solvothermal times (1 h, 3 h, 6 h, and 12 h). The physicochemical properties of these catalysts and the catalytic performance for CO2 hydrogenation to methanol were studied. The highest methanol yield was achieved when the solvothermal time was 6 h (CCZ-6). Furthermore, we found that the copper surface area (SCu) increases and then decreases with an increase in the solvothermal time and that there is a strong correlation between the methanol yield and the SCu. This research highlights the crucial influence of the solvothermal time on the structure and catalytic behavior of Cu-ZnO-ZrO2 catalysts, providing a valuable reference for the development of efficient catalysts.

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23

Liu, Jun, Zhaodong Nan, and Shengli Gao. "In situ microcalorimetry study of ZnFe2O4 nanoparticle formation under solvothermal conditions." Dalton Transactions 44, no. 39 (2015): 17293–301. http://dx.doi.org/10.1039/c5dt01982f.

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In situ microcalorimetry is used to investigate the formation mechanism for the solvothermal method, where ZnFe<sub>2</sub>O<sub>4</sub> nanoparticles synthesized via a one-step solvothermal method are selected as the model sample.

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Fu, Fang, Qi Wang, Ya-Ping Deng, et al. "Effect of synthetic routes on the rate performance of Li-rich layered Li1.2Mn0.56Ni0.12Co0.12O2." Journal of Materials Chemistry A 3, no. 9 (2015): 5197–203. http://dx.doi.org/10.1039/c4ta06552b.

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Different morphologies and compositions of Li-rich layered cathode materials of Li<sub>1.2</sub>Mn<sub>0.56</sub>Ni<sub>0.12</sub>Co<sub>0.12</sub>O<sub>2</sub> (LMNCO) are successfully synthesized by solvothermal and coprecipitation methods. The sample prepared by the solvothermal method exhibits superior performance in rate capability and discharge capacity.

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Ye, Yin, Fang Li Yuan, Li Min Zhou, and Hai Tao Huang. "Synthesis of Fine Nickel Powders by Solvothermal Method." Key Engineering Materials 334-335 (March 2007): 1145–48. http://dx.doi.org/10.4028/www.scientific.net/kem.334-335.1145.

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Fine nickel powders have been prepared by chemical reduction between nickel acetate and alcohol under solvothermal conditions. The effect of adding surfactant and varying solvent on the particle size of the as-synthesized nickel powders have been explored. SEM, XRD and TG were employed to characterize the size, morphology, crystalline structure and the thermal stability of the as-synthesized nickel powders. It is revealed that the FCC-structured nickel powders are of uniform spherical shape with good crystallinity and thermal stability. Typically, nickel powders with an average size of 300 nm were obtained at 200°C for 8 h using 0.04 mol/L solution of Ni(CH3COO)2·4H2O in n-butyl alcohol under solvothermal conditions.

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Sun, Shengtong, Denis Gebauer, and Helmut Cölfen. "A solvothermal method for synthesizing monolayer protected amorphous calcium carbonate clusters." Chemical Communications 52, no. 43 (2016): 7036–38. http://dx.doi.org/10.1039/c6cc03010f.

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Lai, Li Sze, Yin Fong Yeong, Kok Keong Lau, and Mohd Shariff Azmi. "Fast Synthesis of Highly Crystalline ZIF-8 Using Microwave-Assisted Solvothermal Method." Applied Mechanics and Materials 773-774 (July 2015): 1133–37. http://dx.doi.org/10.4028/www.scientific.net/amm.773-774.1133.

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This paper presents the formation of highly crystalline ZIF-8 using microwave-assisted solvothermal method. The crystallinity of the ZIF-8 particles was characterized using X-ray diffraction. The lattice vibrations of the structure in the ZIF-8 framework were determined through Fourier transforms infrared spectroscopy. The morphology of the ZIF-8 particles was observed through scanning electron microscopy. The results showed that, 0.5 hour was sufficient for the formation of highly crystalline ZIF-8 particles using microwave-assisted solvothermal method under temperature 120 oC.

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Fang, Ling, Rongrong Qi, Linbo Liu, Gongwen Juan, and Suangwu Huang. "Synthesis of Poly(L-lactide) via Solvothermal Method." International Journal of Polymer Science 2009 (2009): 1–7. http://dx.doi.org/10.1155/2009/929732.

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Poly(L-lactide) was obtained from the ring-opening polymerization of L-lactide through a solvothermal process. Tin (II) chloride (SnC12) was used as the catalyst for the polymerization reaction. The focus of this paper was on the effect of solvents, catalyst usage, temperature, time, and antioxidants on the ring-opening reaction in the solvothermal synthesis. Ubbelohde viscometer, FTIR, GPC, and DSC were used to characterize the products. It is found that the optimal reaction condition for the highest molecular weight of PLA is at160∘Cfor 10 hour with 0.4% SnCl2in 10 mL toluene as solvent, and the high crystallinity can be obtained. The addition of antioxidant prior to the polymerization is conducive to obtaining high molecular weight and augmentTm,TcandXcvalues of PLA.

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Wu, Zeqing, Haibo Long, Chuanshun Yu, Kaixuan Liu, and Zhongchao Fu. "Preparation of flowerlike magnetic hierarchical mesoporous iron oxide microspheres by solvothermal method without surfactants." Journal of Physics: Conference Series 2951, no. 1 (2025): 012134. https://doi.org/10.1088/1742-6596/2951/1/012134.

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Abstract For the first time, we report a novel solvothermal method using glycerol as a solvent for the controlled synthesis of flowerlike magnetic hierarchical mesoporous iron oxide microspheres (HMIMs). Flowerlike HMIMs can be prepared by using ferric citrate and urea at low solvothermal temperatures without adding any surfactants and stabilizers. The microspheres not only have magnetic properties but also have 3 nm and 31 nm mesoporous structures. The specific surface area is as high as 202 m2/g.

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Zhukov, E.E., and S.G. Ilꞌyasov. "EFFECT OF SOLVATOTHERMAL COPPER (II) NANOOXIDE ON BURNING RATE OF PYROTECHNIC COMPOSITIONS." Annali d'Italia 38 (December 23, 2022): 11–18. https://doi.org/10.5281/zenodo.7477124.

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The paper presents the results of studies on the use of the solvothermy reaction as a method of introducing nano-oxide of copper (II) onto the components of pyrotechnic compositions. The first part of the present study deals with developing a procedure for depositing nCuO onto the surfaces of KNO3, KClO4, Ti and B by the solvothermal method using ammonium bis(N,N’-dinitrourea)cuprate. The second part of the study involves physico-chemical characterization of the modified components (KNO3@CuO, KClO4@CuO, Ti@CuO, and B@CuO) and testing these substances for burning rate.

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Tripathi, Gagan Kant. "Synthesis and Characterization of Cdse Quantum Dot by SolvoThermal Method to Determine its Photocatalytic Applications." Nanomedicine & Nanotechnology Open Access 9, no. 3 (2024): 1–11. http://dx.doi.org/10.23880/nnoa-16000317.

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The optical, morphological, structural, and photocatalytic properties of CdSe quantum dots are investigated in this research. The Solvo-thermal approach is used to make CdSe quantum dots, which is done at 60o C for 5 hours. The reducing agent hydrazine hydrate is used to prepare the CdSe nanoparticles. While using CdSe quantum dots as a photocatalyst, it was discovered that there were variations in the period of time needed to break down the dye. The dye degradation effect was characterized using a UV-Vis spectrophotometer. Using a Tauc plot formula, the band gap was determined to be 2.47 eV. The particle size has been determined by transmission electron microscopy to be 11.57 nm. The SAED pattern analysis supports the CdSe quantum dots crystalline structure. Using the Debye-Scherr formula, the XRD technique determines the crystallite size as 8.06 nm.

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Cheng, Ya Juan, Xue Chen Duan, Yang Lin Liu, Bo Jiang, Gui Ying Xiao, and Zhi Chao Zhou. "Facile Solvothermal Route to Synthesize Indium Tin Oxide Nano-Plates, Nanoparticles and Nanorods." Advanced Materials Research 284-286 (July 2011): 1014–18. http://dx.doi.org/10.4028/www.scientific.net/amr.284-286.1014.

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Indium tin oxide (ITO) nanopowders with high crystalline were synthesized by a simple solvothermal method with isopropanol as the selected solvent. X-ray diffraction was employed to characterize the crystal structure and crystalline size while the effect of the reaction time on morphologies was studied by FE-SEM. The results revealed that, with the increase of solvothermal time, the morphologies were evolved gradually from porous plates with high specific surface area to rods with narrow diameter distribution. The solvothermal time has little effect on crystalline size, which is 18nm approximately for all the samples. With the increase of solvothermal time, the electric conductivity decreases slightly first and then increases greatly. The possible mechanisms for the effect of solvothermal time on ITO powder morphologies and electric conductivity are proposed.

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Sun, Lingna, Qingwei Deng, Bo Fang, et al. "Carbon-coated LiFePO4synthesized by a simple solvothermal method." CrystEngComm 18, no. 39 (2016): 7537–43. http://dx.doi.org/10.1039/c6ce01681b.

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Sun, Chunwen, Hong Li, Huairuo Zhang, Zhaoxiang Wang, and Liquan Chen. "Controlled synthesis of CeO2nanorods by a solvothermal method." Nanotechnology 16, no. 9 (2005): 1454–63. http://dx.doi.org/10.1088/0957-4484/16/9/006.

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Li, Hong, Xiaofang Han, Wenjie Zhang, and Hongbo He. "Al-B-TiO2 Photocatalyst Prepared by Solvothermal Method." Asian Journal of Chemistry 25, no. 15 (2013): 8347–50. http://dx.doi.org/10.14233/ajchem.2013.14737.

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Hadia, Nomery, Santiago Garcia-Granda, and Jose Garcia. "Nanocrystalline Oxides: CdS nanowires synthesized by solvothermal method." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C1414. http://dx.doi.org/10.1107/s2053273314085854.

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Recent advances in the field of nanotechnology produced an assortment of one-dimensional (1D) structures, such as nanowires and nanorods. These fascinating materials are the potential building blocks for a wide range of nanoscale electronics, optoelectronics, magnetoelectronics, or sensing devices [1]. Parallel to the success with group IV and groups III–V compounds semiconductor nanostructures, semiconducting metal oxide materials with wide band gaps are attracting attention [2-3]. The main aim of this communication is to report our results on the application of several new techniques, particularly the use of hydrothermal synthesis, to fabricate single crystal one-dimensional nanostructured materials, study their growth processes, understand the growth mechanisms and investigate their physical properties. A wide range of remarkable features are then presented, to cover a number of metal oxides, such as ZnO, Sb2O3, CdS, MgO, α-Fe2O3, or TiO2, describing their structures, optical, magnetic, mechanical and chemical sensing properties. These studies constitute the basis for developing versatile applications based on metal oxide 1D systems as well as highlighting the current progress in device development. To exemplify, the as-prepared CdS nanowires have average 28 nm in diameter and length up to several micrometres. The direct band gap of the CdS nanowires is 2.56 eV calculated by the UV-vis absorption spectra. The PL spectrum has two distinct emission bands at 502 nm and 695 nm, which are associated with the near-band-edge emission and defect emission, respectively. These synthesized single-crystal CdS nanowires have a high potential in the optoelectronic applications of nanolasers, solar cells, lighting-emitting diodes or photodetectors. Acknowledgments: Erasmus Mundus MEDASTAR (Mediterranean Area for Science, Technology and Research) Programme, 2011–4051/002–001-EMA2, Spanish MINECO (MAT2010-15094, Factoría de Cristalización – Consolider Ingenio 2010) and ERDF.

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Liu, Xin-yuan, Jing-hui Zeng, Shu-yuan Zhang, Rong-bo Zheng, Xian-ming Liu, and Yi-tai Qian. "Novel bismuth nanotube arrays synthesized by solvothermal method." Chemical Physics Letters 374, no. 3-4 (2003): 348–52. http://dx.doi.org/10.1016/s0009-2614(03)00730-9.

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Davolos, Marian Rosaly, Sergio Feliciano, Ana M. Pires, Rodrigo F. C. Marques, and Miguel Jafelicci. "Solvothermal method to obtain europium-doped yttrium oxide." Journal of Solid State Chemistry 171, no. 1-2 (2003): 268–72. http://dx.doi.org/10.1016/s0022-4596(02)00174-3.

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Du, Jin, Liqiang Xu, Guifu Zou, Lanlan Chai, and Yitai Qian. "A solvothermal method to novel metastable ZnSe nanoflakes." Materials Chemistry and Physics 103, no. 2-3 (2007): 441–45. http://dx.doi.org/10.1016/j.matchemphys.2007.02.062.

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Qiao, Xiuqing, Hui Yang, Cheng Chen, et al. "Synthesis of Monodispersed SnO2 Microspheres via Solvothermal Method." Procedia Engineering 94 (2014): 58–63. http://dx.doi.org/10.1016/j.proeng.2013.11.044.

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Xu, Hongliang, Xiaozeng Jin, Pei Chen, et al. "Preparation of kaolinite nanotubes by a solvothermal method." Ceramics International 41, no. 5 (2015): 6463–69. http://dx.doi.org/10.1016/j.ceramint.2015.01.085.

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Nandanwar, S. U., M. Chakraborty, S. Mukhopadhyay, and K. T. Shenoy. "Stability of ruthenium nanoparticles synthesized by solvothermal method." Crystal Research and Technology 46, no. 4 (2011): 393–99. http://dx.doi.org/10.1002/crat.201100025.

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Dravecz, Gabriella, Tamás Kolonits, and László Péter. "Formation of LiNbO3 Nanocrystals Using the Solvothermal Method." Crystals 13, no. 1 (2023): 77. http://dx.doi.org/10.3390/cryst13010077.

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The optimization of the parameters of the solvothermal synthesis of lithium niobate (LiNbO3, LN) nanocrystals from Nb2O5 and LiOH was performed. The effects of polyol media, reaction time and Li excess of the starting reagents were investigated. According to the X-ray diffraction phase analysis, Li3NbO4 and Nb2O5 were also detected besides the LN phase in many samples depending on the ratio of the starting components and the reaction time. The best yield and the most homogeneous LN phase was prepared by using diethylene glycol medium with a Li/Nb ratio of 1.5 and a 72 h reaction time. The size and the shape of the LN particles were characterized by scanning electron microscopy. The particle size distribution was narrow and under 100 nm for all cases.

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Jiang, Wei Hui, Quan Zhang, Jian Min Liu, Qing Xia Zhu, and Li Feng Miao. "Effect of Gelation Process on Preparation of Aluminum Titanate Ultrafine Powder by Hydrolytic Sol-Gel Method." Materials Science Forum 745-746 (February 2013): 690–95. http://dx.doi.org/10.4028/www.scientific.net/msf.745-746.690.

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Aluminium titanate (AT) ultrafine powder was prepared via hydrolytic sol-gel (HSG) method using aluminium nitrate (Al (NO3)3·9H2O) and titanium tetrachloride (TiCl4) as precursors as well as ethanol as solvent. Water required for hydrolysis reaction was supplied by the crystal water of aluminium nitrate itself. The effect of gelation processes, i.e. reflux and solvothermal treatment, on synthesis of AT powder was investigated by means of DTA-TG, XRD, SEM, and TEM, etc. The result shows that the gelation process has significant effect on the synthesis of AT powder. By reflux process, AT powder was synthesized at 1350 °C with average particle size above 1μm and serious agglomeration. Through solvothermal treatment process, however, AT powder with average particle size less than 150 nm was prepared at 1050 °C at a relatively high synthesis rate, which is due to the refinement reactants by the solvothermal treatment.

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Medvedeva, A. A., E. V. Makhonina, M. M. Klimenko, et al. "Influence of synthesis method on morphology and functional properties of li-rich layered oxides." Žurnal neorganičeskoj himii 69, no. 7 (2024): 986–98. https://doi.org/10.31857/s0044457x24070067.

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The influence of the precursor synthesis method on the functional properties of cathode material based on lithium-rich oxides was studied. Precursors were obtained by co-precipitation method (hydroxide and carbonate precursors) and solvothermal method (hydroxide and oxalate precursors). Within the selected synthesis methods, the parameters were changed by varying the precipitant and pH of precipitation during the synthesis by co-precipitation method and the reaction medium/precipitant combinations during the solvothermal synthesis method. The solid-phase reaction of the investigated precursors with lithium source and subsequent high-temperature annealing resulted in lithium-rich layered oxides of the composition Li1.2Ni0.133Mn0.534Co0.133O2. The sample synthesized by solvothermal method exhibits high discharge capacity values of 233.2 mAh/g (0.1 C) and 175.3 mAh/g (0.5 C) with residual discharge capacity of 94 and 80.5%, respectively. The samples with comparable electrochemical performance are similar in morphology. These materials are agglomerated and characterized by a bimodal distribution with maxima in the 14–19 μm and 55–60 μm regions. An approach that takes into account the relationship between morphology and electrochemical properties will allow the preparation of higher performance electrode materials for lithium-ion battery.

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Sun, Cai, Ming-Sheng Wang, Xian Zhang, Ning-Ning Zhang, Lin-Rong Cai, and Guo-Cong Guo. "Viologen-templated bromoplumbate: a new in situ synthetic method and energy gap engineering." CrystEngComm 19, no. 31 (2017): 4476–79. http://dx.doi.org/10.1039/c7ce00919d.

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Rathod, Vaishali N. "Synthesis, Characterization and Catalytic Potency of Zn-based MOF for Knoevenagel Condensation Reaction." International Journal for Research in Applied Science and Engineering Technology 9, no. 11 (2021): 730–35. http://dx.doi.org/10.22214/ijraset.2021.38896.

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Abstract: A Zn based metal organic framework with pyridine 2, 5-dicarboxylate (Zn-based MOF) were prepared as a reusable heterogeneous catalyst using solvothermal method. Zn-based MOF was used as heterogeneous catalyst for synthesis 5-arylidene malononitrile in ethanol under reflux condition. The attractive features of present method are mild reaction condition, short reaction time, simplicity, easy separation of catalyst and excellent yield. Keywords: Metal organic framework, heterogeneous catalyst, solvothermal method.

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Dantelle, Géraldine, Denis Testemale, Estelle Homeyer, et al. "A new solvothermal method for the synthesis of size-controlled YAG:Ce single-nanocrystals." RSC Advances 8, no. 47 (2018): 26857–70. http://dx.doi.org/10.1039/c8ra05914d.

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Yan, Haiting, Jianhui Li, Daomeng Liu, Xunan Jing, Daquan Wang, and Lingjie Meng. "Controlled preparation of high quality WS2 nanostructures by a microwave-assisted solvothermal method." CrystEngComm 20, no. 16 (2018): 2324–30. http://dx.doi.org/10.1039/c8ce00057c.

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Nakashima, Kouichi, Shogo Iwatsuki, Ichiro Fujii, and Satoshi Wada. "Preparation of Barium Titanate/Strontium Titanate Accumulation Ceramics with Necking Structure of Strontium Titanate Nanocubes." Key Engineering Materials 582 (September 2013): 67–70. http://dx.doi.org/10.4028/www.scientific.net/kem.582.67.

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Barium titanate (BaTiO3) / Strontium titanate (SrTiO3) accumulation ceramics with necking structure of SrTiO3 nanocubes were prepared using a solvothermal method. XRD measurements confirmed SrTiO3 and BaTiO3 with a perovskite structure. The XRD peak intensities of the BaTiO3 increased significantly as the solvothermal reaction was repeated. After heat treatment of the SrTiO3 at 900°C, the particles grew larger and formed necked contacts with each other. As the solvothermal reaction was repeated in order to coat with BaTiO3, the density increased, the porosity decreased, and the thickness of the BaTiO3 layer increased.

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