Results 311 to 320 of about 172,039 (337)

Synthesis of YBa2Cu3O7− via sol-gel

Solid State Ionics, 1993
Abstract The single phase powder YBa 2 Cu 3 O 7− x was prepared via sol-gel method. The agglomerates of YBa 2 Cu 3 O 7− x phase synthesized at 880°C and 900°C keep the shape of the particles of precursor, ultrasound is effective in crushing of the precursor plateled particles.
I. Sargánková, P. Diko, M. Timko, M. Černík, J. Mihálik   +4 more
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Sol–Gel synthesis of SrBi2Ta2O9 nanowires

Journal of Alloys and Compounds, 2010
Abstract We report the synthesis of perovskite ferroelectric nanowire strontium bismuth tantalate (SrBi 2 Ta 2 O 9 , SBT). Sol–gel techniques have been used. The morphology and structures are analyzed via SEM, TEM and XRD. The XRD and TEM analysis show that the structure of SBT nanowires is single orthorhombic perovskite with A2 1 am structure ...
Wen Wang, Hua Ke, Jian-Cun Rao, Ming Feng, Yu Zhou   +4 more
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Sol–gel synthesis of Li2ZrSi6O15 powders

Journal of Materials Chemistry, 2000
Lithium silicozirconate (Li2ZrSi6O15) was synthesised by the sol–gel method. The synthesis was performed with several Li∶Zr∶Si molar ratios. The best yield of Li2ZrSi6O15 (89%) was obtained with the Li∶Zr∶Si molar ratio of 2∶2∶6. For molar ratios of Li∶Zr of 1 a mixture of oxides, such as SiO2 and ZrO2, was obtained.
Heriberto Pfeiffer, Pedro Bosch, Silvia Bulbulian   +2 more
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Sol–gel synthesis of Bi3.25La0.75Ti3O12 nanotubes

Journal of Alloys and Compounds, 2011
Abstract Ferroelectric Bi 3.25 La 0.75 Ti 3 O 12 (BLT) nanotubes were synthesized by sol–gel technique using nanochannel porous anodic aluminum oxide (AAO) templates, and were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and high resolution transmission ...
Wen Wang, Hua Ke, Jiancun Rao, Jinbiao Feng, Ming Feng, Dechang Jia, Yu Zhou   +6 more
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Sol‐Gel Synthesis of Supported Metals.

ChemInform, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Benoit Heinrichs, Stephanie Lambert, Nathalie Job, Jean‐Paul Pirard   +3 more
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Structural aspects of sol-gel synthesis

Journal of Non-Crystalline Solids, 1990
Abstract The various methods for studying the structure of the gel backbone and the texture of gels are reviewed. The difficulties of applying the fractal concepts are critically presented and a non-fractal aggregation model with a variable coordination index proposed.
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Sol-Gel Synthesis

2009
The aim of this article is to introduce the versatile sol–gel technique, particularly in the field of electrochemical energy conversion and storage. The multiplicity of parameters modulated in the different stages of the overall synthetic path includes (1) hydrolysis temperature, (2) reaction pH, (3) solvent removal (which by itself introduces many ...
S. Rondinini, S. Ardizzone, G. Cappelletti, A. Minguzzi, A. Vertova   +4 more
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Sol-gel synthesis of manganese oxides

Journal of Solid State Chemistry, 1990
Transparent and stable manganese dioxide gels are obtained upon reduction of permanganate aqueous solutions AMnO4 [A = Li, Na, K, NH4, N(CH3)4] by fumaric acid. All xerogels are amorphous when dried at room temperature. Their thermal behavior however depends on the nature of the counter cation A+. Ammonium permanganates lead to the formation of α- or γ-
S. Bach, M. Henry, N. Baffier, J. Livage
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Synthesis of sol-gel hybrid polyhydroxyurethanes

European Polymer Journal, 2018
Abstract Syntheses of novel hybrid PolyHydroxyUrethane (PHU)/siloxane polymers have been performed by sol-gel process in order to mix properties of organic and inorganic compounds. In the objective to replace Polyurethanes (PU) for environmental and health concern, Polyhydroxyurethanes (PHU) are becoming interesting candidates in Non-Isocyanate ...
Decostanzi, Mélanie, Ecochard, Yvan, Caillol, Sylvain   +2 more
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Sol-gel synthesis of electrochromic films

Materials Science and Engineering: B, 1989
Abstract The sol-gel process offers new approaches to the synthesis of electrochromic materials. Oxide networks are formed upon hydrolysis-condensation of alkoxide precursors. Layers can be easily deposited by dip coating. V 2 O 5 gels give rise to anisotropic electrochromic layers that turn from yellow to green.
M. Nabavi, S. Doeuff, C. Sanchez, J. Livage   +3 more
openaire   +1 more source