Journal of Sol-Gel Science and Technology

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Band-gap energy estimation from diffuse reflectance measurements on sol–gel and commercial TiO2: a comparative study
Journal of Sol-Gel Science and Technology - Tập 61 Số 1 - Trang 1-7 - 2012
López, Rosendo, Gómez, Ricardo
A comparison of the band gap energy estimated from UV–vis reflectance spectra of TiO2 powders prepared by sol–gel route versus commercial TiO2 powders, nanopowder, bulkpowder and P25 is reported. The experimental results obtained from the optical absorption spectra were reported for all the TiO2 samples. Graphic representations were used to calculate Eg: absorbance versus λ; F(R) versus E; (F(R) h... hiện toàn bộ
Macroporous Morphology of the Titania Films Prepared by a Sol-Gel Dip-Coating Method from the System Containing Poly(ethylene glycol). IV. General Principle of Morphology Formation and Effect of Heat Treatment
Journal of Sol-Gel Science and Technology - Tập 17 - Trang 173-184 - 2000
Koichi Kajihara, Takeshi Yao
The variation of macroscopic morphology of the titania (TiO2) films has been studied at various dipping conditions for a sol-gel dip-coating system containing poly(ethylene glycol) (PEG). The variation of macroscopic morphology is understood consistently by considering both the volume fraction of solvent phase during the phase separation and the water to alkoxide ratio in the sol film. The gel fil... hiện toàn bộ
One pot synthesis of ordered mesoporous organosilica particles bearing propyl-, octyl- and hexadecyl-chains
Journal of Sol-Gel Science and Technology - Tập 63 - Trang 587-594 - 2012
Natalya A. Vodolazkaya, Christelle Despas, Bénédicte Lebeau, Claire Marichal, Alain Walcarius
New hybrid organic–inorganic materials exhibiting ordered mesoporous structures have been synthesized by co-condensation of tetraethoxysilane and various alkyltrimethoxysilanes with increasing length of the hydrocarbon chain (propyl, octyl, hexadecyl), in water–ethanol solution containing ammonia, in the presence of a cationic surfactant (cetyltrimethylammonium bromide) as templating agent. The ob... hiện toàn bộ
Impact of bismuth titanate for microwave absorber application: a review
Journal of Sol-Gel Science and Technology - Tập 103 - Trang 1-11 - 2022
P. Harshapriya, Deepak Basandrai
Bismuth titanate (BTO) owe to high dielectric constant, high dielectric losses, and high temperature coefficient of resonant frequency is considered to be one of the most prominent aspirants for microwave absorption applications. BTO and their composites are also used to diminish the electromagnetic interference in electrical devices, Airplanes, ships and tank radar signals. Several studies have b... hiện toàn bộ
Formulation influence on the sol–gel formation of silica-supported ionogels
Journal of Sol-Gel Science and Technology - Tập 78 Số 1 - Trang 34-39 - 2016
Ariel I. Horowitz, Kenneth Westerman, Matthew J. Panzer
Near- and Mid-Infrared Spectroscopy of Sol-Gel Derived Ormosil Films for Photonics from Tetramethoxysilane and Trimethoxysilylpropylmethacrylate
Journal of Sol-Gel Science and Technology - Tập 19 - Trang 687-690 - 2000
Kiyoharu Tadanaga, Bryan Ellis, Angela B. Seddon
Ormosil dipped thin films and cast films were prepared using tetramethoxysilane and trimethoxysilylpropylmethacrylate (TMSPM). Structural changes during thermally induced polymerisation of the organic groups were investigated using near- and mid-infrared (IR) spectroscopy. IR spectra of the ormosil dipped thin films, dried at 60°C, have shown that further heat-treatment of the films at 160°C leads... hiện toàn bộ
Dry-gel conversion synthesis of magnetic BEA-type zeolites for antibiotics adsorption
Journal of Sol-Gel Science and Technology - Tập 105 - Trang 511-524 - 2023
Vanpaseuth Phouthavong, Takeshi Hagio, Supinya Nijpanich, Jae-Hyeok Park, Masatake Hiraiwa, Teeranun Srihirunthanon, Nutchanan Chantanurak, Ratana Rujiravanit, Yuki Kamimoto, Xinling Li, Long Kong, Liang Li, Ryoichi Ichino
The dry-gel conversion method (DGC) is a promising synthesis protocol for preparing magnetic zeolite composites as it yields homogeneous composite particles with more rapid crystallization, smaller reactor volume, and less waste production than the conventional hydrothermal method. This work investigates the optimal conditions for preparing magnetic BEA-type zeolites using the DGC method, includin... hiện toàn bộ
Synthesis of ZnO/Cu2S core/shell nanorods and their enhanced photoelectric performance
Journal of Sol-Gel Science and Technology - Tập 72 Số 1 - Trang 92-99 - 2014
Keying Guo, Xuhuang Chen, Jianhua Han, Zhifeng Liu
Fabrication of heterostructure NiO/ZnO thin film for pseudocapacitor application
Journal of Sol-Gel Science and Technology - Tập 104 - Trang 198-210 - 2022
G. Vijaya Prasath, K. S. Usha, M. Karuppaiah, G. Ravi, P. Krishnan
An ordered NiO/ZnO heterojunction electrochemical electrode was prepared on an FTO substrate by using the spin-coating method. XRD patterns confirmed the ZnO NRs of varying lengths and NiO NPs of varying sizes are grown in the same manner as hexagonal wurtzite and cubic crystal structures, respectively. An important outcome is that both the crystal structures are fused together as a heterostructur... hiện toàn bộ
The role of sol gel processing in the development of high-temperature superconductors for AC applications
Journal of Sol-Gel Science and Technology - - 2009
B.A. Glowacki, M. Mosiądz
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