Journal of Sol-Gel Science and Technology

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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
Two layered silica protective film made by a spray-and-dip coating method on 304 stainless steel
Journal of Sol-Gel Science and Technology - Tập 55 - Trang 207-212 - 2010
Taejin Hwang, HeungYeol Lee, Hohyeong Kim, GyunTak Kim
The silica coating has attracted much attention because of its superior corrosion resistance with almost no harm to human health and to the environment. In this study, a two layered silica film was tried to get an enhanced corrosion resistance. The silica film was prepared on the hairline finish 304 stainless steel surfaces by-a-spray- and subsequent-dip-coating process. The spray coating solution...... 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
Silica Films Containing Ordered Pores Prepared by Dip Coating of Silica Nanoparticles and Polystyrene Beads Colloidal Mixture
Journal of Sol-Gel Science and Technology - Tập 29 Số 1 - Trang 41-47 - 2004
Ferry Iskandar, Mıkrajuddın Abdullah, Hiroyoshi Yoden, Kikuo Okuyama
Nonlinear effects in chromophore doped sol-gel photonic materials
Journal of Sol-Gel Science and Technology - Tập 9 - Trang 169-181 - 1997
X. D. Sun, X. J. Wang, W. Shan, J. J. Song, M. G. Fan, E. T. Knobbe
Linear and nonlinear optical effects have been studied in chromophore-doped gel hosts. Tetra-4-sulfonatophenylporphyrinatocopper(II) (CuTPPS), and 1,3-dihydro-1,3,3-trimethylspiro[2H-indole-2,3′-[3H]-naphth[2,1-b][1,4]oxazine] (SP spirooxazine) species were entrapped within porous aluminosilicate hosts. Optical limiting effects and radiative up-conversion behavior in the CuTPPS-doped materials are...... hiện toàn bộ
Preparation and antibacterial property on silver incorporated mesoporous bioactive glass microspheres
Journal of Sol-Gel Science and Technology - Tập 75 - Trang 279-290 - 2015
Ratiya Phetnin, Sirirat Tubsungnoen Rattanachan
In this study, the antibacterial property of silver-incorporated mesoporous bioactive glass microspheres (Ag-MBGMs) was investigated. The samples belonging to the 80SiO2·(15 − x)CaO·5P2O5·xAg2O system where 0 ≤ x ≤ 5 mol% were successfully prepared for bone regeneration and drug carrier applications. The obtained samples were evaluated by X-ray diffraction (XRD), transmission electron microscope (...... hiện toàn bộ
Effect of seeded substrates on hydrothermally grown ZnO nanorods
Journal of Sol-Gel Science and Technology - Tập 50 - Trang 456-464 - 2009
Sunandan Baruah, Joydeep Dutta
We report a study on the effect of seeding on glass substrates with zinc oxide nanocrystallites towards the hydrothermal growth of ZnO nanorods from a zinc nitrate hexahydrate and hexamethylenetetramine solution at 95 °C. The seeding was done with pre-synthesized ZnO nanoparticles in isopropanol with diameters of about 6–7 nm as well as the direct growth of ZnO nanocrystallites on the substrates b...... hiện toàn bộ
Stabilization of quercetin-functionalized silica gel against hydrolysis by blocking silanol groups with TiO2 or ZrO2 and its application for the removal of Hg(II)
Journal of Sol-Gel Science and Technology - Tập 57 - Trang 57-67 - 2010
Khaled S. Abou-El-Sherbini, Detlef Schiel, Rainer Stosch, Peter Weidler, Wolfgang H. Höll
Free silanol groups of silica-gel functionalized with quercetin (QSG) were blocked with TiO2 or ZrO2 to produce TiO2-QSG and ZrO2-QSG, respectively. The silica materials were characterized by infrared, Raman spectra, thermogravimetric, elemental analyses, magic angle spinning 13C-nuclear magnetic resonance, BET specific surface area measurements and inductively coupled plasma—optical emission spec...... hiện toàn bộ
Spherical hybrid silica particles modified by methacrylate groups
Journal of Sol-Gel Science and Technology - Tập 43 - Trang 21-26 - 2007
Eduardo J. Nassar, Evelisy C. de O. Nassor, Lilian R. Ávila, Paula F. S. Pereira, Alexandre Cestari, Luiz M. Luz, Katia J. Ciuffi, Paulo S. Calefi
Organic–inorganic hybrid materials have been used as fillers to reinforce dental resin composites, which require strengthening to improve their performance in large stress-bearing applications such as crowns and multiple-unit restorations. Homogeneous organic–inorganic hybrid materials with high performance were prepared by mixing 3-methacryloxypropyltrimethoxysilane (MPTS) and tetraethylorthosili...... hiện toàn bộ
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