标题：Decreasing Co3O4 Particle Sizes by Ammonia-Etching and Catalytic Oxidation of Propane作者： Zhang, WD (Zhang, Weidong); Hu, LJ (Hu, Lijuan); Wu, F (Wu, Feng); Li, JJ (Li, Jinjun)

来源出版物：CATALYSIS LETTERS 卷：147 期：2 页码：407-415 DOI：10.1007/s10562-016-1956-6 出版年：FEB 2017

摘要：Nanosized cobalt oxides were synthesized by ammonia-etching of cobalt hydroxide and subsequent calcination. The effects of ammonia etching on the structures and catalytic properties of cobalt oxide were investigated. The results suggested that the cobalt oxide is composed of cubic Co3O4 having particle sizes in the range of 10-20 nm; smaller than the analogue prepared through the conventional precipitation method. Ammonia etching improved the reducibility of cobalt oxide, and facilitated the generation of surface oxygen vacancies and the production of surface-adsorbed active oxygen species. The activity of Co3O4 in propane oxidation was greatly enhanced by ammonia etching, mainly due to the smaller particle size and better redox properties. The facile ammonia-etching synthesis method has potential for large-scale and low-cost production of cobalt oxide catalyst.

入藏号：WOS:000394359600012

文献类型：Article

语种：English

作者关键词：Environmental catalysis; Alkanes; Nanoparticles; Total oxidation; Etching; Ammonia; Cobalt oxide

扩展关键词：C3H8 TOTAL OXIDATION; CARBON-MONOXIDE; COBALT OXIDE; ACTIVE-SITES; TEMPERATURE; CO; COMBUSTION; NI; STABILITY; ETHYLENE

通讯作者地址：Li, JJ (reprint author), Wuhan Univ, Sch Resources & Environm Sci, Wuhan 430079, Peoples R China.

电子邮件地址： ljjcbacademy@163.com

地址： [Zhang, Weidong; Hu, Lijuan; Wu, Feng; Li, Jinjun] Wuhan Univ, Sch Resources & Environm Sci, Wuhan 430079, Peoples R China.

研究方向：Chemistry

ISSN：1011-372X

eISSN:1572-879X

影响因子：2.294