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Highly Loaded Carbon Black Supported Pt Catalysts for Fuel Cells
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SYSNO ASEP 0446903 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Highly Loaded Carbon Black Supported Pt Catalysts for Fuel Cells Author(s) Kaluža, Luděk (UCHP-M) RID, ORCID, SAI
Larsen, M.J. (DK)
Zdražil, Miroslav (UCHP-M) RID, SAI
Gulková, Daniela (UCHP-M) RID, ORCID, SAI
Vít, Zdeněk (UCHP-M) RID, SAI
Šolcová, Olga (UCHP-M) RID, ORCID, SAI
Soukup, Karel (UCHP-M) RID, SAI, ORCID
Koštejn, Martin (UCHP-M) RID, SAI, ORCID
Bonde, J.L. (DK)
Maixnerová, Lucie (UCHP-M) RID
Odgaard, M. (DK)Source Title Catalysis Today. - : Elsevier - ISSN 0920-5861
Roč. 256, NOV 1 (2015), s. 375-383Number of pages 9 s. Language eng - English Country NL - Netherlands Keywords carbon black ; fuell cell ; electrocatalyst Subject RIV CI - Industrial Chemistry, Chemical Engineering R&D Projects 7HX13003 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UCHP-M - RVO:67985858 UT WOS 000360657000018 EID SCOPUS 84949323276 DOI 10.1016/j.cattod.2015.02.016 Annotation A commercial high surface area carbon black, low surface area carbon black and an experimental grade medium surface area carbon black (ExpCB, were studied assupports for platinum deposition: from true solutions of H2PtCl6, Pt(C5H7O2)2, Pt(NH3)4(NO3)2, orPt(NH3)2(NO2)2, and (ii) from fine slurries of Pt(C5H7O2)2or PtO2to achieve high Pt loadings of 60 wt.%.Temperature programmed reduction revealed that PtO2, H2PtCl6, Pt(C5H7O2)2, Pt(NH3)4(NO3)2,and Pt(NH3)2(NO2)2deposited on carbon blacks were reduced to metallic Pt at 0, 70, 120, 140, 150◦C,respectively. Cyclic voltammetry was carried out on electrodes prepared from selected catalyst mate-rials on a rotating-disc electrode. The electrochemically active surface area of the platinumand electrocatalytic activities towards the oxygen-reduction reaction were evaluated from the RDE measurements, in which also the stability towards electrochemical ageing was investigated. These analyses indicated that impregnation by H2PtCl6is the most suitable of the studied catalyst synthesismethods. Mass-specific ORR activities similar to that of commercial reference catalyst are obtained. Catalysts prepared on carbon ExpCB showed greater stability than those based on 350G. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2016
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