Document Detail


Controllably Interfacing with Metal: A Strategy for Enhancing CO Oxidation on Oxide Catalysts by Surface Polarization.
MedLine Citation:
PMID:  25296380     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Heterogeneous catalysis often involves charge transfer from catalyst surface to adsorbed molecules, whose activity thus depends on the surface charge density of catalysts. In this communication, we demonstrate a unique solution-phase approach to achieve controllable interfacial lengths in oxide-metal hybrid structures. Resulted from their different work functions, surface polarization is induced by the Ag-CuO interface and acts to tailor the surface charge state of CuO. As a result, the designed hybrid catalysts exhibit enhanced intrinsic activities in catalyzing CO oxidation in terms of apparent activation energy, as compared with their counterparts. Moreover, the CO conversion rate can be enhanced by maximizing the Ag-CuO interfacial length and thus the number of active sites on the CuO. This work provides a new strategy for tuning catalytic performance by controlling interface in hybrid catalysts.
Authors:
Yu Bai; Wenhua Zhang; Zhenhua Zhang; Jie Zhou; Xijun Wang; Chengming Wang; Weixin Huang; Jun Jiang; Yujie Xiong
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-10-8
Journal Detail:
Title:  Journal of the American Chemical Society     Volume:  -     ISSN:  1520-5126     ISO Abbreviation:  J. Am. Chem. Soc.     Publication Date:  2014 Oct 
Date Detail:
Created Date:  2014-10-8     Completed Date:  -     Revised Date:  2014-10-9    
Medline Journal Info:
Nlm Unique ID:  7503056     Medline TA:  J Am Chem Soc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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