Effect of the Basic Surface Sites of Carbons on the Degree of Dispersion of Platinum Catalysts Prepared by H2PtCl6 Adsorption Full article
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2008, Volume: 49, Number: 6, Pages: 886-892 Pages count : 7 DOI: 10.1134/S002315840806013X | ||||
| Tags | Active Carbon; Carbon Support; Platinum Catalyst; Platinum Compound; Platinum Particle | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | The Ministry of Education and Science of the Russian Federation | 02.513.11.3203 |
Abstract:
In the synthesis of Pt/C catalysts via H2PtCl6 adsorption onto a carbon support, NH4Cl can be formed catalytically during the reduction of the precursor with H2 at 250°C. This compound favors the sintering of metal particles. This effect is likely due to the weakening of metal-support bonding because of NH4Cl adsorption on the Pt surface. The sources of nitrogen and chlorine atoms are basic surface sites of the support, which contain nitrogen atoms in their structure and adsorb Cl− ions from the precursor solution. This effect is typical of active carbons, whose surface contains chemically bound nitrogen as amino groups, and weakens as the Pt/N atomic ratio in the supported catalyst precursors is increased.
Cite:
Kholodovich A.N.
, Simonov P.A.
, Kvon R.I.
, Bukhtiyarov A.V.
, Zaikovskii V.I.
, Chesalov Y.A.
, Romanenko A.V.
Effect of the Basic Surface Sites of Carbons on the Degree of Dispersion of Platinum Catalysts Prepared by H2PtCl6 Adsorption
Kinetics and Catalysis. 2008. V.49. N6. P.886-892. DOI: 10.1134/S002315840806013X WOS Scopus РИНЦ ANCAN OpenAlex
Effect of the Basic Surface Sites of Carbons on the Degree of Dispersion of Platinum Catalysts Prepared by H2PtCl6 Adsorption
Kinetics and Catalysis. 2008. V.49. N6. P.886-892. DOI: 10.1134/S002315840806013X WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Холодович А.Н.
, Симонов П.А.
, Квон Р.И.
, Бухтияров А.В.
, Зайковский В.И.
, Чесалов Ю.А.
, Романенко А.В.
Влияние поверхностных основных центров углей на дисперсность платиновых катализаторов, получаемых адсорбцией H2PtCl6
Кинетика и катализ. 2008. Т.49. №6. С.936-943. РИНЦ
Влияние поверхностных основных центров углей на дисперсность платиновых катализаторов, получаемых адсорбцией H2PtCl6
Кинетика и катализ. 2008. Т.49. №6. С.936-943. РИНЦ
Dates:
| Submitted: | Mar 28, 2008 |
| Published print: | Nov 1, 2008 |
| Published online: | Dec 3, 2008 |
Identifiers:
| Web of science: | WOS:000261342700013 |
| Scopus: | 2-s2.0-57449097560 |
| Elibrary: | 13590214 |
| Chemical Abstracts: | 2008:1443215 |
| Chemical Abstracts (print): | 150:130076 |
| OpenAlex: | W1967548381 |