文献类型：期刊文献

英文题名：Controlled synthesis of highly active mesoporous Co3O4 polycrystals for low temperature CO oxidation

作者：Feng, Yingjun[1]; Li, Liang[1]; Niu, Shufan[1]; Qu, Yan[1]; Zhang, Qian[1]; Li, Yongsheng[1]; Zhao, Wenru[1]; Li, Hua[1]; Shi, Jianlin[1,2]

机构：[1] Laboratory for Advanced Functional Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China; [2] State Key Laboratory of High Performance Ceramic and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

年份：2012

卷号：111-112

起止页码：461

外文期刊名：Applied Catalysis B: Environmental

收录：EI(收录号：20115214638023)

语种：英文

外文关键词：Catalyst activity - Mesoporous materials - Catalytic oxidation - Temperature - Micrometers - Oxalic acid - Decomposition

摘要：Polycrystalline mesoporous Co3O4 has been successfully fabricated using a simple but efficient controlled thermal decomposition approach and their catalytic activities for low temperature CO oxidation were evaluated. In such a synthesis, micrometer-sized polyhedral cobalt oxalate crystals were first prepared and used as precursor. Mesoporosity was then generated via the pyrolysis of the cobalt oxalate precursor and the resultant nano-sized Co3O4 crystallites connected together to form mesoporous structure within the original micrometer-sized particles. The as-prepared material by calcination at 300°C at a heating rate of 0.5°C/min possessed high surface area and showed extraordinarily high catalytic activity for low temperature CO oxidation, the full CO conversion can be achieved at as low as -70°C. ? 2011 Elsevier B.V.