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  Small gold particles supported on MgFe2O4 nanocrystals as novel catalyst for CO oxidation

Jia, C.-J., Liu, Y., Schwickardi, M., Weidenthaler, C., Spliethoff, B., Schmidt, W., et al. (2010). Small gold particles supported on MgFe2O4 nanocrystals as novel catalyst for CO oxidation. Applied Catalysis A: General, 386(1-2), 94-100. doi:10.1016/j.apcata.2010.07.036.

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 Creators:
Jia, Chun-Jiang1, Author           
Liu, Yong2, Author           
Schwickardi, Manfred2, Author           
Weidenthaler, Claudia2, Author           
Spliethoff, Bernd3, Author           
Schmidt, Wolfgang4, Author           
Schüth, Ferdi2, Author           
Affiliations:
1Research Group Rinaldi, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445617              
2Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445589              
3Service Department Lehmann (EMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445625              
4Research Group Schmidt, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445618              

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Free keywords: Supported gold catalyst; MgFe2O4; CO oxidation; Pretreatment atmosphere; Active oxygen
 Abstract: We present the study on the catalytic performance of gold particles supported on spinel type MgFe2O4 nanocrystals (Au/MgFe2O4) which exhibit high activity for low temperature CO oxidation. Using XRD, TEM, XPS and CO titration techniques, we investigated the effect of the pretreatment atmosphere on the structure and catalytic properties of the Au/MgFe2O4 catalyst in CO oxidation. TEM, XPS and XRD showed that the pretreatment atmosphere had a negligible effect on the particle size distribution, chemical states of the gold, and the structure of the support. Among the various pretreated catalysts, O2-Au/MgFe2O4 exhibits superior activity, indicating that pretreatment in oxidative atmosphere induced the high capability of the catalyst to activate CO and supply active oxygen for CO oxidation as confirmed by CO titration experiments.

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Language(s): eng - English
 Dates: 2010-05-042010-07-272010-09-30
 Publication Status: Issued
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.apcata.2010.07.036
 Degree: -

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Title: Applied Catalysis A: General
  Abbreviation : Appl. Catal. A
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 386 (1-2) Sequence Number: - Start / End Page: 94 - 100 Identifier: ISSN: 0926-860X
CoNE: https://pure.mpg.de/cone/journals/resource/954925567761_1