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

Shin Ichiro Imabayashi; Yoko Kondo; Ryotaro Komori; Akihiko Kawano; Takashi Ohsaka

doi:10.1149/1.2981931

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

Shin Ichiro Imabayashi, Yoko Kondo, Ryotaro Komori, Akihiko Kawano, Takashi Ohsaka

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

15 Citations (Scopus)

Abstract

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 NH_3.

Original language	English
Title of host publication	ECS Transactions - Proton Exchange Membrane Fuel Cells 8
Publisher	Electrochemical Society Inc.
Pages	925-930
Number of pages	6
Edition	2 PART 1
ISBN (Print)	9781566776486
DOIs	https://doi.org/10.1149/1.2981931
Publication status	Published - 2009
Event	Proton Exchange Membrane Fuel Cells 8, PEMFC - 214th ECS Meeting - Honolulu, HI, United States Duration: 2008 Oct 12 → 2008 Oct 17

Publication series

Name	ECS Transactions
Number	2 PART 1
Volume	16
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Conference

Conference	Proton Exchange Membrane Fuel Cells 8, PEMFC - 214th ECS Meeting
Country/Territory	United States
City	Honolulu, HI
Period	08/10/12 → 08/10/17

ASJC Scopus subject areas

Engineering(all)

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10.1149/1.2981931

Cite this

Imabayashi, S. I., Kondo, Y., Komori, R., Kawano, A., & Ohsaka, T. (2009). Effects of atmospheric trace species on the oxygen reduction reaction and the production of hydrogen peroxide. In ECS Transactions - Proton Exchange Membrane Fuel Cells 8 (2 PART 1 ed., pp. 925-930). (ECS Transactions; Vol. 16, No. 2 PART 1). Electrochemical Society Inc.. https://doi.org/10.1149/1.2981931

Effects of atmospheric trace species on the oxygen reduction reaction and the production of hydrogen peroxide. / Imabayashi, Shin Ichiro; Kondo, Yoko; Komori, Ryotaro et al.

ECS Transactions - Proton Exchange Membrane Fuel Cells 8. 2 PART 1. ed. Electrochemical Society Inc., 2009. p. 925-930 (ECS Transactions; Vol. 16, No. 2 PART 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Imabayashi, SI, Kondo, Y, Komori, R, Kawano, A & Ohsaka, T 2009, Effects of atmospheric trace species on the oxygen reduction reaction and the production of hydrogen peroxide. in ECS Transactions - Proton Exchange Membrane Fuel Cells 8. 2 PART 1 edn, ECS Transactions, no. 2 PART 1, vol. 16, Electrochemical Society Inc., pp. 925-930, Proton Exchange Membrane Fuel Cells 8, PEMFC - 214th ECS Meeting, Honolulu, HI, United States, 08/10/12. https://doi.org/10.1149/1.2981931

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abstract = "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.",

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N2 - 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.

AB - 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.

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

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