Effects of atmospheric trace species on the oxygen reduction reaction and the production of hydrogen peroxide

Shinichiro Imabayashi, Yoko Kondo, Ryotaro Komori, Akihiko Kawano, Takashi Ohsaka

研究成果: Conference contribution

12 引用 (Scopus)

抄録

The effects of the atmospheric trace species (SO2, Cl -, NH3) on the formation of H2O2 accompanying the O2 reduction reaction (ORR) have been elucidated in 0.1 M HClO4 using rotating ring-disk Pt electrode methodology. The potential at which the ORR starts shifts to the negative direction and the amount of formed H2O2 increases concomitantly as the amount of added SO2 or CI- increases, although Cl - less affects. The extent of the H2O2 formation is correlated to the coverage of SO2 or Cl- which was estimated from the decrease in the area of a hydrogen desorption peaks. This suggests that the adsorption of SO2 or Cl- on Pt reduces the number of the adjacent adsorption sites necessary for breaking of the O-O bond and then enhances the production of. No effect on the ORR activity and the H2O2 formation was observed for NH3.

元の言語English
ホスト出版物のタイトルECS Transactions
ページ925-930
ページ数6
16
エディション2 PART 1
DOI
出版物ステータスPublished - 2008
イベントProton Exchange Membrane Fuel Cells 8, PEMFC - 214th ECS Meeting - Honolulu, HI
継続期間: 2008 10 122008 10 17

Other

OtherProton Exchange Membrane Fuel Cells 8, PEMFC - 214th ECS Meeting
Honolulu, HI
期間08/10/1208/10/17

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Hydrogen peroxide
Oxygen
Adsorption
Desorption
Hydrogen
Electrodes

ASJC Scopus subject areas

  • Engineering(all)

これを引用

Imabayashi, S., Kondo, Y., Komori, R., Kawano, A., & Ohsaka, T. (2008). Effects of atmospheric trace species on the oxygen reduction reaction and the production of hydrogen peroxide. : ECS Transactions (2 PART 1 版, 巻 16, pp. 925-930) https://doi.org/10.1149/1.2981931

Effects of atmospheric trace species on the oxygen reduction reaction and the production of hydrogen peroxide. / Imabayashi, Shinichiro; Kondo, Yoko; Komori, Ryotaro; Kawano, Akihiko; Ohsaka, Takashi.

ECS Transactions. 巻 16 2 PART 1. 編 2008. p. 925-930.

研究成果: Conference contribution

Imabayashi, S, Kondo, Y, Komori, R, Kawano, A & Ohsaka, T 2008, Effects of atmospheric trace species on the oxygen reduction reaction and the production of hydrogen peroxide. : ECS Transactions. 2 PART 1 Edn, 巻. 16, pp. 925-930, Proton Exchange Membrane Fuel Cells 8, PEMFC - 214th ECS Meeting, Honolulu, HI, 08/10/12. https://doi.org/10.1149/1.2981931
Imabayashi S, Kondo Y, Komori R, Kawano A, Ohsaka T. Effects of atmospheric trace species on the oxygen reduction reaction and the production of hydrogen peroxide. : ECS Transactions. 2 PART 1 版 巻 16. 2008. p. 925-930 https://doi.org/10.1149/1.2981931
Imabayashi, Shinichiro ; Kondo, Yoko ; Komori, Ryotaro ; Kawano, Akihiko ; Ohsaka, Takashi. / Effects of atmospheric trace species on the oxygen reduction reaction and the production of hydrogen peroxide. ECS Transactions. 巻 16 2 PART 1. 版 2008. pp. 925-930
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