Monolithically Integrated Spinel MxCo3−xO4 (M=Co,Ni, Zn) Nanoarray Catalysts: Scalable Synthesis and Cation Manipulation for Tunable Low‐Temperature CH4 and CO Oxidation |
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| Authors: | Zheng Ren Venkatesh Botu Sibo Wang Yongtao Meng Wenqiao Song Dr Yanbing Guo Prof?Dr Ramamurthy Ramprasad Prof?Dr Steven L Suib Prof?Dr Pu‐Xian Gao |
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| Institution: | 1. Department of Materials Science and Engineering & Institute of Materials Science, University of Connecticut, 97 N. Eagleville Road, Storrs, CT (USA);2. Department of Chemistry & Institute of Materials Science, University of Connecticut, 55 N. Eagleville Road, Storrs, CT (USA) |
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| Abstract: | A series of large scale MxCo3?xO4 (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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| Keywords: | density functional calculations heterogeneous catalysis low‐temperature oxidation nanoarrays scalable synthesis |
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