Efficient CO Oxidation by Co/Ta2O5 Prepared by Deposition-Precipitation with Urea

被引:0
|
作者
Xia, Qing [1 ]
Qin, Haijian [1 ]
Xia, Feifei [1 ]
Yao, Pengfei [1 ]
Zheng, Chunzhi [1 ]
Zhao, Songjian [1 ]
Zhang, Huabing [2 ]
Yang, Fengli [1 ]
机构
[1] Jiangsu Univ Technol, Sch Resources & Environm Engn, Changzhou 213001, Jiangsu, Peoples R China
[2] Panzhihua Univ, Sch Biol & Chem Engn, Panzhihua 617000, Peoples R China
关键词
CO oxidation; Co/Ta2O5; Deposition-precipitation method with urea; CATALYSTS; PERFORMANCE; REACTIVITY; COBALT; TA2O5; CO3O4; OXIDE; TRANSITION;
D O I
10.1007/s10562-023-04551-4
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
CO oxidation at mild condition is significant for industrial process but still challenging nowadays, especially for the non-noble metal catalysts. The preparation method significant affect the catalytic activity of the catalyst. Comparing with cobalt supported on tantalum oxide prepared by impregnation method, Co/Ta2O5 prepared by deposition-precipitation method with urea in this study has smaller particle size, higher specific surface area and better redox properties, and these features make the catalyst exhibit higher catalytic activity for CO oxidation at mild condition. 90% CO conversion was achieved at 130 degree celsius, and CO was fully converted at 150 degree celsius. The XPS and DRIFTs results show that Co/Ta2O5 has more oxygen vacancies, and the absorbed CO will react with oxygen. The study may provide a new thought for the preparation of catalysts with high activity at mild condition.
引用
收藏
页码:3174 / 3183
页数:10
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