Effect of Metal Loading and Carbon Support Microstructure on the Dispersion of Pt/C Catalysts Prepared via Adsorption of Chloroplatinic Acid Full article
Journal |
Reaction Kinetics and Catalysis Letters
ISSN: 0133-1736 , E-ISSN: 1588-2837 |
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Output data | Year: 2005, Volume: 86, Number: 2, Pages: 381-387 Pages count : 7 DOI: 10.1007/s11144-005-0334-y | ||
Tags | Active carbon, Carbon black, Carbon microstructure, Platinum dispersion, Pt/C catalysts, Sibunit | ||
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Abstract:
Adsorption of H2PtCl6 onto a carbon support followed by reduction of the adsorbed platinum species with H2 at 250°C leads to Pt/C catalysts, which show universal volcano-like dependence of platinum dispersion on the metal loading in the range from 0.01 to 0.55 mmol (Pt)/m2 (SBET) when highly disordered carbons, namely, active carbons and carbon blacks, are used as supports. The maximal dispersion D(CO/Pt) = 0.8 is attained at 0.18 mmol (Pt)/m2 (SBET). With other factors being equal, the dispersion of platinum supported on carbons with a more regular crystal structure, especially Sibunit-type supports, proves to be the highest and independent of the metal loading.The differences between the two groups of carbon supports are explained by the differences in the state of the adsorbed platinum precursors.
Cite:
Kholodovich A.N.
, Simonov P.A.
Effect of Metal Loading and Carbon Support Microstructure on the Dispersion of Pt/C Catalysts Prepared via Adsorption of Chloroplatinic Acid
Reaction Kinetics and Catalysis Letters. 2005. V.86. N2. P.381-387. DOI: 10.1007/s11144-005-0334-y WOS Scopus РИНЦ
Effect of Metal Loading and Carbon Support Microstructure on the Dispersion of Pt/C Catalysts Prepared via Adsorption of Chloroplatinic Acid
Reaction Kinetics and Catalysis Letters. 2005. V.86. N2. P.381-387. DOI: 10.1007/s11144-005-0334-y WOS Scopus РИНЦ
Dates:
Submitted: | Jun 29, 2005 |
Accepted: | Jul 4, 2005 |
Published print: | Nov 1, 2005 |
Identifiers:
Web of science | WOS:000234487600021 |
Scopus | 2-s2.0-31344479784 |
Elibrary | 13477431 |
Chemical Abstracts | 2006:81062 |
Chemical Abstracts (print) | 144:115211 |
OpenAlex | W2006120411 |