太阳成8722(中国)有限公司-GREEN NO.1

标题：Ionic Liquid-Mediated-Fe2O3 Shape-Controlled Nanocrystal-Supported Noble Metals:Highly Active Materials for CO Oxidation

作者：Hou, Liwei; Zhang, Qinghua; Jerome, Francois; Duprez, Daniel; Can,Fabien; Courtois, Xavier; Zhang, Hui; Royer, Sebastien

出版物来源：CHEMCATCHEM 卷：5 期：7 页：1978-1988 DOI：0.1002/cctc.201200840 出版年：JUL 2013

入藏号：WOS:000320929200049

文献类型：Article

语种：English

作者关键词：ionic liquids, iron, oxidation, nanostructures, noble metals

扩展关键词：OXYGEN ISOTOPIC-EXCHANGE; ORDERED MESOPOROUS CO3O4; GOLD NANOPARTICLES; ALPHA- FE2O3 NANOPARTICLES; CATALYTIC PERFORMANCE; OXIDE NANOPARTICLES; ELECTRON-STRUCTURE; CARBON-MONOXIDE; WATER-TREATMENT; HOLLOW SPHERES

摘要：Shape-controlled iron oxide nanocrystals were prepared by using an ionic liquid-mediated hydrothermal process. Different morphologies can be synthesised, such as cubes and porous nanotubes. Owing to the different morphologies developed, accessible surface area varies from a few m2g-1 to more than 50m2g-1. These differences result in different oxygen mobilities, and the porous nanorods demonstrate the highest bulk oxygen mobility. Thus, all these shaped materials demonstrate higher activity for the oxidation reaction compared to the commercial reference. In addition, the favourable physical properties, that is high surface area, enable the easy dispersion of noble metal nanoparticles (platinum, palladium and gold); some of these high-surface area noble metal-containing materials demonstrate remarkable catalytic activities. Porous nanorod-supported gold nanoparticles enable the conversion of CO below 100 degrees C, which is far better than on commercial -Fe2O3-supported gold for which dispersion of gold remains difficult owing to the low surface area of the commercial support.

通讯作者：Zhang, Hui;Wuhan Univ, Dept Environm Engn, Hubei Biomass Resource Chem & Environm Biotechnol, POB C319,Luoyu Rd 129, Wuhan 430079, Peoples R China.

地址：

[Hou, Liwei; Zhang, Hui] Wuhan Univ, Dept Environm Engn, Hubei Biomass Resource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China.

[Hou, Liwei; Zhang, Qinghua; Jerome, Francois; Duprez, Daniel; Can, Fabien; Courtois, Xavier; Royer, Sebastien] Univ Poitiers, CNRS, IC2MP, UMR 7285, F-86022 Poitiers, France.

电子邮件地址：eeng@whu.edu.cn;sebastien.royer@univ-poitiers.fr

研究方向：Chemistry

ISSN：1867-3880