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  Platinum-cobalt catalysts for the oxygen reduction reaction in high temperature proton exchange membrane fuel cells - Long term behavior under ex-situ and in-situ conditions

Schenk, A., Grimmer, C., Perchthaler, M., Weinberger, S., Pichler, B., Heinzl, C., Scheu, C. U., Mautner, F.-A., Bitschnau, B., & Hacker, V. (2014). Platinum-cobalt catalysts for the oxygen reduction reaction in high temperature proton exchange membrane fuel cells - Long term behavior under ex-situ and in-situ conditions. Journal of Power Sources, 266, 313-322. doi:10.1016/j.jpowsour.2014.05.023.

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アイテムのパーマリンク: https://hdl.handle.net/11858/00-001M-0000-0024-B78B-2 版のパーマリンク: https://hdl.handle.net/11858/00-001M-0000-0024-BDCB-2
資料種別: 学術論文

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 作成者:
Schenk, Alexander1, 著者           
Grimmer, Christoph1, 著者           
Perchthaler, Markus1, 2, 著者           
Weinberger, Stephan1, 著者           
Pichler, Birgit1, 著者           
Heinzl, Christoph3, 著者           
Scheu, Christina Ulrike4, 著者           
Mautner, Franz-Andreas5, 著者           
Bitschnau, Brigitte5, 著者           
Hacker, Viktor6, 著者           
所属:
1Institute of Chemical Engineering and Environmental Technology, Fuel Cell Systems Group, Graz University of Technology, Steyrergasse 21, Graz 8010, Austria, ou_persistent22              
2Elcomax GmbH, 81737 Munich, Germany, ou_persistent22              
3Department of Chemistry, LMU Munich, Germany , ou_persistent22              
4Department of Chemistry, University of Munich (LMU), Butenandtstrasse 5-13, 81377 Munich, Germany, ou_persistent22              
5Institute of Physical and Theoretical Chemistry, Structure Science Group, Graz University of Technology, Stremayrgasse 9, Graz 8010, Austria, ou_persistent22              
6Graz University of Technology, Institute of Chemical Engineering and Environmental Technology, 8010 Graz, Austria, ou_persistent22              

内容説明

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キーワード: ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY; SUPERIOR ELECTROCATALYTIC ACTIVITY; AC-IMPEDANCE; SURFACE-COMPOSITION; TRANSITION-METALS; ALLOY SURFACES; PT-SKIN; CO; CATHODE; STABILITYElectrochemistry; Energy & Fuels; PEMFCs; High temperature; ORR catalysts; Pt catalysts; Long term operation; Stability;
 要旨: Platinum cobalt catalysts (Pt-Co) have attracted much interest as cathode catalysts for proton exchange membrane fuel cells (PEMFCs) due to their high activity toward oxygen reduction reaction (ORR). Many of the reported catalysts show outstanding performance in ex-situ experiments. However, the laborious synthesis protocols of these Pt-Co catalysts disable an efficient and economic production of membrane electrode assemblies (MEAs). We present an economic, flexible and continuous Pt-M/C catalyst preparation method as part of a large scale membrane electrode assembly manufacturing. In comparison, the as-prepared Pt-Co/C based high temperature (HT)-PEM MEA showed an equal performance to a commercially available HT-PEM MEA during 600 h of operation under constant load, although the commercial one had a significantly higher Pt loading at the cathode. (C) 2014 Elsevier B.V. All rights reserved.

資料詳細

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言語: eng - English
 日付: 2014-11-15
 出版の状態: 出版
 ページ: 10
 出版情報: -
 目次: -
 査読: -
 識別子（DOI, ISBNなど）: ISI: 000338806300042
DOI: 10.1016/j.jpowsour.2014.05.023
 学位: -

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出版物 1

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出版物名: Journal of Power Sources
  省略形 : J. Power Sources
種別: 学術雑誌
 著者・編者:
所属:
出版社, 出版地: Amsterdam, The Netherlands : Elsevier
ページ: - 巻号: 266 通巻号: - 開始・終了ページ: 313 - 322 識別子（ISBN, ISSN, DOIなど）: ISSN: 0378-7753
CoNE: https://pure.mpg.de/cone/journals/resource/954925527849