Controlled homogeneity of the precursor gel in the synthesis of SrTiO3 nanoparticles by an epoxide assisted sol-gel route

Cui HT; Zayat M; Levy D

首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Controlled homogeneity of the precursor gel in the synthesis of SrTiO3 nanoparticles by an epoxide assisted sol-gel route

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Controlled homogeneity of the precursor gel in the synthesis of SrTiO3 nanoparticles by an epoxide assisted sol-gel route

机译：通过环氧辅助溶胶-凝胶法合成SrTiO3纳米粒子时前体凝胶的受控均质性

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Perovskite-type SrTiO3 nanoparticles of 50-100 nm were synthesized by a sol-gel method using propylene oxide as a gelation agent. The observation of the process of gel formation and the characterization of the obtained particles show that the addition of a certain amount of ethanol to the aqueous solution, where the gelation reaction takes place, plays a decisive role in the homogeneity of the precursor gel: ethanol decreases the huge difference of chemical reactivity between the individual precursor ions in the solution, increasing the homogeneity of the gels, as the amount of ethanol added is increased. The high homogeneity of the precursor gels allowed the formation of SrTiO3 nanoparticles by a short calcination of the precursor gel at 700 degrees C for 10 min. (C) 2007 Elsevier B.V. All rights reserved.

机译：使用环氧丙烷作为胶凝剂，通过溶胶-凝胶法合成了50-100 nm的钙钛矿型SrTiO3纳米颗粒。对凝胶形成过程的观察和所获得颗粒的表征表明，在发生凝胶化反应的水溶液中添加一定量的乙醇，对前体凝胶：乙醇的均质性起决定性作用。减少了溶液中各个前体离子之间化学反应性的巨大差异，从而增加了凝胶的均匀性，因为添加的乙醇量增加了。前体凝胶的高均质性允许通过在700摄氏度下将前体凝胶短时间煅烧10分钟来形成SrTiO3纳米颗粒。（C）2007 Elsevier B.V.保留所有权利。

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《Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites》 |2007年第12期|共6页
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Cui HT; Zayat M; Levy D;
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正文语种 eng
中图分类晶体学;
关键词
nanoparticles; titanates; sol-gels (xerogels); OXIDE AEROGELS; FE(III) SALTS; PHOTOCATALYST; PARTICLES; POWDERS; PHASE;

机译：纳米颗粒;钛酸盐;溶胶-凝胶（干凝胶）;氧化物气溶胶;FE（III）盐;光催化剂;颗粒;粉末;相;

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1. Controlled homogeneity of the precursor gel in the synthesis of SrTiO3 nanoparticles by an epoxide assisted sol-gel route [J] . Cui HT, Zayat M, Levy D Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites . 2007,第11a12期

机译：通过环氧辅助溶胶-凝胶法合成SrTiO3纳米粒子时前体凝胶的受控均质性
2. Low temperature and size controlled synthesis of monodispersed γ-Fe2O3 nanoparticles by an epoxide assisted sol–gel route [J] . Hongtao Cui, Wanzhong Ren Journal of Sol-Gel Science and Technology . 2008,第1期

机译：环氧辅助溶胶-凝胶法低温和尺寸控制合成单分散γ-Fe2 O3 纳米颗粒
3. Low temperature transformation from γ-Fe2O3 to Ti doped α-Fe2O3 nanoparticles through an epoxide assisted sol-gel route [J] . Bo Wang, Yuanming Song, Wanzhong Ren Journal of Sol-Gel Science and Technology . 2009,第1期

机译：通过环氧辅助溶胶-凝胶法从γ-Fe2O3到Ti掺杂的α-Fe2O3纳米颗粒的低温转变
4. Y2O3-STABILIZED ZrO2 AEROGELS PREPARED FROM AN EPOXIDE ASSISTED SOL-GEL SYNTHESIS FOR USE IN SOFC COMPOSITE CATHODES [C] . Christopher N.Chervin, Hsiang Wei Chiu, Susan M.Kauzlarich, International conference on advanced ceramics and composites . 2005

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5. Aerogel and xerogel synthesis of solid oxide fuel cell materials by an epoxide assisted sol-gel method: Investigating high surface area ceramics for cathode applications. [D] . Chervin, Christopher N. 2005

机译：通过环氧化物辅助的溶胶-凝胶法气凝胶和干凝胶合成固体氧化物燃料电池材料：研究用于阴极应用的高表面积陶瓷。
6. Controlled Synthesis and Microstructural Properties of Sol-Gel TiO2 Nanoparticles for Photocatalytic Cement Composites [O] . Elena Cerro-Prada, Sara García-Salgado, M. Ángeles Quijano, 2019

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机译：使用无机盐前体的新型溶胶 - 凝胶合成路线以及主族金属氧化物的合成路线

Controlled homogeneity of the precursor gel in the synthesis of SrTiO3 nanoparticles by an epoxide assisted sol-gel route

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