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Development of Tailored High-Performance and Durable Electrocatalysts for Advanced PEM Fuel Cells.
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SYSNO ASEP 0473748 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Development of Tailored High-Performance and Durable Electrocatalysts for Advanced PEM Fuel Cells. Author(s) Larsen, M.J. (DK)
Morales, I.J. (FR)
Cavaliere, S. (FR)
Zajac, J. (FR)
Jones, J.D. (FR)
Rozière, J. (FR)
Kaluža, Luděk (UCHP-M) RID, ORCID, SAI
Gulková, Daniela (UCHP-M) RID, ORCID, SAI
Odgaard, M. (DK)Source Title International Journal of Hydrogen Energy. - : Elsevier - ISSN 0360-3199
Roč. 42, č. 10 (2017), s. 7166-7176Number of pages 11 s. Action International Conference on Innovative Electrochemical Energy Materials and Technologies (EEMT) Event date 08.11.2015 - 11.11.2015 VEvent location Nanjing Country CN - China Event type EUR Language eng - English Country GB - United Kingdom Keywords fuel-cell catalyst ; platinum deposition ; oxygen reduction Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry R&D Projects 7HX13003 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UCHP-M - RVO:67985858 UT WOS 000399623500072 EID SCOPUS 85002498055 DOI 10.1016/j.ijhydene.2016.09.134 Annotation A family of novel carbon materials with intermediate surface area and varying morphology and surface chemistry were used to prepare Pt/C catalysts by two different preparation procedures, a chemical impregnation method and a microwave-assisted polyol method. The catalysts were thoroughly characterized, and their electrochemical performance and stability were investigated with rotating disc electrode (RDE) cyclic voltammetric (CV) measurements. The intermediate-surface-area carbon supports gave catalysts with much greater support stability than a widely used standard catalyst. The novel catalysts had lower electrochemical surface area than the reference, but their specific electrocatalytic activity towards the oxygen-reduction reaction (ORR) was much higher, and some of them also featured higher mass-specific ORR activity than the reference. The series of catalysts prepared by the microwave-assisted polyol method featured smaller Pt nanoparticles and higher activities than those prepared by impregnation. On the other hand, the impregnated catalysts showed better durability of the Pt particles. The most promising catalysts were selected and elaborated in further optimized preparation procedures to obtain quantities sufficient for their use in proton-exchange membrane fuel cells (PEMFCs). Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2018
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