期刊
SMALL STRUCTURES
卷 2, 期 2, 页码 -出版社
WILEY
DOI: 10.1002/sstr.202000081
关键词
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资金
- Beijing Municipal High Level Innovative Team Building Program [IDHT20180504]
- Beijing Outstanding Young Scientists Program [BJJWZYJH0201910005017]
- National Natural Science Foundation of China [21805004, 21671011, 21872001, 51801006]
- Beijing Natural Science Foundation [KZ201710005002, 2192005]
- China Postdoctoral Science Foundation [2018M641133]
- Beijing Postdoctoral Research Foundation [2018-ZZ-021]
- Chaoyang District Postdoctoral Research Foundation [2018-ZZ-026]
Research on low-temperature CO oxidation has shown that CeO2, widely used as a catalyst and catalyst support, plays a key role in improving the activity of cerium-based catalysts in CO oxidation. Several strategies for enhancing CeO2 activity, including metal loading and adjusting exposed facets, have been explored.
Carbon monoxide (CO) is a toxic and harmful gas pollutant. The realization of low-temperature CO oxidation has been the focus of research. Also, CO oxidation as a typical model reaction is conducive to the in-depth study of the catalytic reaction mechanism. Due to its unique oxygen storage/release capacity (OSC) and the easy transition between Ce3(+) and Ce4(+), CeO2 is widely used as a catalyst and catalyst support in many important reactions, especially the low-temperature CO oxidation reaction. Herein, the application of cerium-based materials in low-temperature CO oxidation and CeO2 activity enhancement strategies in recent years are elaborated upon, including metal loading, adjustment of exposed facets of CeO2, and metal doping, through metal-support interaction and the generation of oxygen vacancies on the CeO2 surface to improve the CO oxidation activity of cerium-based catalysts. At the end of the review, the synthesis of Ce-based materials and their applications and challenges in the field of CO oxidation are looked at.
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