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- Title
Efficient CO Oxidation by Co/Ta<sub>2</sub>O<sub>5</sub> Prepared by Deposition–Precipitation with Urea.
- Authors
Xia, Qing; Qin, Haijian; Xia, Feifei; Yao, Pengfei; Zheng, Chunzhi; Zhao, Songjian; Zhang, Huabing; Yang, Fengli
- Abstract
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 ℃, and CO was fully converted at 150 ℃. 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.
- Subjects
TANTALUM; UREA; METAL catalysts; CATALYTIC activity; TANTALUM oxide; MANUFACTURING processes; OXIDATION
- Publication
Catalysis Letters, 2024, Vol 154, Issue 7, p3174
- ISSN
1011-372X
- Publication type
Article
- DOI
10.1007/s10562-023-04551-4