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Title: CO oxidation on gold-supported iron oxides: New insights into strong oxide–metal interactions

Abstract

Very active FeOx–Au catalysts for CO oxidation are obtained after depositing nanoparticles of FeO, Fe3O4, and Fe2O3 on a Au(111) substrate. Neither FeO nor Fe2O3 is stable under the reaction conditions. Under an environment of CO/O2, they undergo oxidation (FeO) or reduction (Fe2O3) to yield nanoparticles of Fe3O4 that are not formed in a bulk phase. Using a combined experimental and theoretical approach, we show a strong oxide–metal interaction (SOMI) between Fe3O4 nanostructures and Au(111), which gives the oxide special properties, allows the formation of an active phase, and provides a unique interface to facilitate a catalytic reaction. This work highlights the important role that the SOMI can play in enhancing the catalytic performance of the oxide component in metal–oxide catalysts.

Authors:
 [1];  [2];  [1];  [3];  [4];  [4]
  1. Xiamen Univ., Xiamen (China); Dalian Institute of Chemical Physics, Dalian (China)
  2. Xiamen Univ., Xiamen (China)
  3. Univ. Central de Venezuela, Caracas (Venezuela)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1222616
Report Number(s):
BNL-108422-2015-JA
Journal ID: ISSN 1932-7447; R&D Project: CO009; KC0302010
Grant/Contract Number:  
21303195; 21473191; 2013CB933100; SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Physical Chemistry. C
Additional Journal Information:
Journal Volume: 119; Journal Issue: 29; Journal ID: ISSN 1932-7447
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Yu, Liang, Liu, Yun, Yang, Fan, Evans, Jaime, Rodriguez, José A., and Liu, Ping. CO oxidation on gold-supported iron oxides: New insights into strong oxide–metal interactions. United States: N. p., 2015. Web. doi:10.1021/acs.jpcc.5b03315.
Yu, Liang, Liu, Yun, Yang, Fan, Evans, Jaime, Rodriguez, José A., & Liu, Ping. CO oxidation on gold-supported iron oxides: New insights into strong oxide–metal interactions. United States. https://doi.org/10.1021/acs.jpcc.5b03315
Yu, Liang, Liu, Yun, Yang, Fan, Evans, Jaime, Rodriguez, José A., and Liu, Ping. Tue . "CO oxidation on gold-supported iron oxides: New insights into strong oxide–metal interactions". United States. https://doi.org/10.1021/acs.jpcc.5b03315. https://www.osti.gov/servlets/purl/1222616.
@article{osti_1222616,
title = {CO oxidation on gold-supported iron oxides: New insights into strong oxide–metal interactions},
author = {Yu, Liang and Liu, Yun and Yang, Fan and Evans, Jaime and Rodriguez, José A. and Liu, Ping},
abstractNote = {Very active FeOx–Au catalysts for CO oxidation are obtained after depositing nanoparticles of FeO, Fe3O4, and Fe2O3 on a Au(111) substrate. Neither FeO nor Fe2O3 is stable under the reaction conditions. Under an environment of CO/O2, they undergo oxidation (FeO) or reduction (Fe2O3) to yield nanoparticles of Fe3O4 that are not formed in a bulk phase. Using a combined experimental and theoretical approach, we show a strong oxide–metal interaction (SOMI) between Fe3O4 nanostructures and Au(111), which gives the oxide special properties, allows the formation of an active phase, and provides a unique interface to facilitate a catalytic reaction. This work highlights the important role that the SOMI can play in enhancing the catalytic performance of the oxide component in metal–oxide catalysts.},
doi = {10.1021/acs.jpcc.5b03315},
journal = {Journal of Physical Chemistry. C},
number = 29,
volume = 119,
place = {United States},
year = {Tue Jul 14 00:00:00 EDT 2015},
month = {Tue Jul 14 00:00:00 EDT 2015}
}

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