期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 53, 期 28, 页码 7223-7227出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201403461
关键词
density functional calculations; heterogeneous catalysis; low-temperature oxidation; nanoarrays; scalable synthesis
资金
- US Department of Energy
- National Science Foundation
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [1344792] Funding Source: National Science Foundation
A series of large scale MxCo(3-x)O(4) (M=Co, Ni, Zn) nanoarray catalysts have been cost-effectively integrated onto large commercial cordierite monolithic substrates to greatly enhance the catalyst utilization efficiency. The monolithically integrated spinel nanoarrays exhibit tunable catalytic performance (as revealed by spectroscopy characterization and parallel first-principles calculations) toward low-temperature CO and CH4 oxidation by selective cation occupancy and concentration, which lead to controlled adsorption-desorption behavior and surface defect population. This provides a feasible approach for scalable fabrication and rational manipulation of metal oxide nanoarray catalysts applicable at low temperatures for various catalytic reactions.
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