Electrochemical stability and oxidation mechanism of carbon support for PEM fuel cell

A. P. Yadav, Y. Sugawara, A. Nishikata, T. Tsuru

研究成果: Conference contribution

7 被引用数 (Scopus)

抄録

The oxidation behavior of a sputtered carbon electrode has been investigated in 0.5 M H2SO4 solution with the help of an electrochemical quartz crystal microbalance (EQCM). The mass change response of the carbon coated Au-QCM during potential cycling showed an increase of mass due to adsorption of water or bisulfate ion just after observation of an anodic peak for the oxidation of hydroquinone. A mass loss due probably to the evolution of CO2 gas was observed at potential above 1.3 V vs. SHE during anodic scan. During cathodic scan, a loss of mass due to release of water or bisulfate ion was accompanied by the reduction of quinone to hydroquinone. By comparing the result of carbon coated QCM with that of highly ordered pyrolytic graphite (HOPG), the mechanism for the oxidation of carbon in acidic medium is discussed.

本文言語English
ホスト出版物のタイトルECS Transactions - Proton Exchange Membrane Fuel Cells 8
出版社Electrochemical Society Inc.
ページ2093-2099
ページ数7
2 PART 2
ISBN(印刷版)9781566776486
DOI
出版ステータスPublished - 2009
外部発表はい
イベントProton Exchange Membrane Fuel Cells 8, PEMFC - 214th ECS Meeting - Honolulu, HI, United States
継続期間: 2008 10 122008 10 17

出版物シリーズ

名前ECS Transactions
番号2 PART 2
16
ISSN(印刷版)1938-5862
ISSN(電子版)1938-6737

Other

OtherProton Exchange Membrane Fuel Cells 8, PEMFC - 214th ECS Meeting
国/地域United States
CityHonolulu, HI
Period08/10/1208/10/17

ASJC Scopus subject areas

  • 工学(全般)

フィンガープリント

「Electrochemical stability and oxidation mechanism of carbon support for PEM fuel cell」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル