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Effect of Metal-Metal and Metal-Support Interaction on Activity and Stability of Pd Rh/Alumina in CO Oxidation Full article

Conference International Symposium on Catalytic Conversion of Energy and Resources
30 Jun - 2 Jul 2016 , Seoul
Journal Catalysis Today
ISSN: 0920-5861 , E-ISSN: 1873-4308
Output data Year: 2017, Volume: 293–294, Pages: 73-81 Pages count : 9 DOI: 10.1016/j.cattod.2016.10.010
Tags Alumina, Bimetallic Pd-Rh catalysts, CO oxidation, Phase transformation, Stability
Authors Vedyagin Aleksey A. 1,2,3 , Volodin Alexander M. 1 , Kenzhin Roman M. 1,3 , Stoyanovskii Vladimir O. 1,3 , Shubin Yury V. 3,4 , Plyusnin Pavel E. 3,4 , Mishakov Ilya V. 1,2,4
Affiliations
1 Boreskov Institute of Catalysis SB RAS, Novosibirsk, 630090, Russia
2 National Research Tomsk Polytechnic University, Tomsk, 634050, Russia
3 Nikolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk, 630090, Russia
4 Novosibirsk State University, Novosibirsk, 630090, Russia

Funding (1)

1 Russian Science Foundation 16-13-10192

Abstract: A series of Pd-Rh/alumina catalysts with total precious metals loading of 0.2 wt.% was prepared by means of mechanical mixing of monometallic precursors and incipient wetness impregnation of the support with dual complex salt. Gamma and delta alumina supports were obtained from commercial aluminum hydroxide by calcinations at 720 and 1000 °C respectively. Supports were examined by electron paramagnetic resonance spectroscopy, low-temperature nitrogen adsorption, X-ray diffraction analysis and photoluminescence spectroscopy. It was shown that concentration of donor sites of the supports differs according to distinctions between values of their specific surface areas. Finally, the strength of metal-support interaction is getting much weaker in the case of δ-Al2O3. Bimetallic Pd-Rh species with strong metal-metal interaction supported on γ-Al2O3 were found to be characterized by superior high-temperature stability. Pd/Rh ratios of 3:2 and 7:3 were shown to be the most appropriate for this purpose.
Cite: Vedyagin A.A. , Volodin A.M. , Kenzhin R.M. , Stoyanovskii V.O. , Shubin Y.V. , Plyusnin P.E. , Mishakov I.V.
Effect of Metal-Metal and Metal-Support Interaction on Activity and Stability of Pd Rh/Alumina in CO Oxidation
Catalysis Today. 2017. V.293–294. P.73-81. DOI: 10.1016/j.cattod.2016.10.010 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
Submitted: Aug 17, 2016
Accepted: Oct 10, 2016
Published online: Oct 15, 2016
Published print: Sep 1, 2017
Identifiers:
Web of science: WOS:000405047100011
Scopus: 2-s2.0-85001698826
Elibrary: 31017528
Chemical Abstracts: 2016:1694223
Chemical Abstracts (print): 167:39028
OpenAlex: W2538019121
Citing:
DB Citing
Web of science 54
Scopus 55
Elibrary 60
OpenAlex 52
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