Co_3O_4 nanosheets:synthesis and catalytic application for CO oxidation at room temperature
Co_3O_4 nanosheets:synthesis and catalytic application for CO oxidation at room temperature作者机构:State Key Laboratory of CatalysisDalian Institute of Chemical PhysicsChinese Academy of Sciences
出 版 物:《Science China Chemistry》 (中国科学(化学英文版))
年 卷 期:2014年第57卷第6期
页 面:873-880页
核心收录:
学科分类:081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金:supported by the National Basic Research Program of China(2013CB933100) the National Natural Science Foundation of China(20923001 and 21025312)
主 题:Co3O4 nanosheets CO oxidation morphology-dependence nanocatalysis
摘 要:Hexagonal β-Co(OH)2 nanosheets with edge length of 50 nm and thickness of 10 nm were hydrothermally synthesized with the aid of *** calcination at 350°C in air,the β-Co(OH)2 nanosheets was converted into Co3O4 nanosheets with a similar *** analyses during the calcination process identified that the β-Co(OH)2 precursor was initially dehydrated to HCoO2 and subsequently transferred into *** being applied to catalyze CO oxidation at room temperature,the Co3O4 nanosheets exhibited a higher activity than the conventional spherical *** was perhaps related to the partial exposure of the{112}planes over the Co3O4 *** porous structure generated during the calcination process also provided significant amounts of surface defects,which might contribute to the enhanced catalytic activity as well.