Development of electrodeposited IrO<inf>2</inf> electrodes as anodes in polymer electrolyte membrane water electrolysis

Byung Seok Lee, Sang Hyun Ahn, Hee Young Park, Insoo Choi, Sung Jong Yoo, Hyoung Juhn Kim, Dirk Henkensmeier, Jin Young Kim, Sehkyu Park, SukWoo Nam, Kwan Young Lee, Jong Hyun Jang

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

To reduce the use of noble metals, iridium oxide (IrO<inf>2</inf>) catalysts are prepared on carbon paper (CP) by electrodeposition for use as the anodes in polymer electrolyte membrane water electrolysis (PEMWE). The activities of the fabricated electrodes toward the oxygen evolution reaction are evaluated. The loading amount and morphology of the IrO<inf>2</inf> deposits are varied by controlling the electrodeposition potential (E<inf>dep</inf>) and time (t<inf>dep</inf>). When electrodeposited at 0.7V, the IrO<inf>2</inf> loading ranges from 0.007 to 0.464mgcm<sup>-2</sup> (t<inf>dep</inf>: 1~30min). In the PEMWE test at 90°C, the IrO<inf>2</inf>/CP electrode with an IrO<inf>2</inf> loading of 0.1mgcm<sup>-2</sup> shows the highest performance (1.92Acm<sup>-2</sup> at 1.8V) in which high IrO<inf>2</inf> utilization is achieved without significant exposure of the substrate carbon surface. The developed IrO<inf>2</inf>/CP electrodes provide cell performances comparable to those in previous reports with a higher IrO<inf>2</inf> loading, indicating markedly enhanced mass activity.

Original languageEnglish
Pages (from-to)285-291
Number of pages7
JournalApplied Catalysis B: Environmental
Volume179
DOIs
Publication statusPublished - 2015 Dec 1

Fingerprint

Electrolysis
electrolyte
Electrolytes
electrokinesis
Anodes
Polymers
electrode
Carbon
polymer
membrane
Membranes
Electrodes
Water
carbon
Electrodeposition
water
iridium
Iridium
Precious metals
Deposits

Keywords

  • Electrodeposition
  • Iridium oxide
  • Oxygen evolution reaction
  • Polymer electrolyte membrane water electrolysis
  • Single cell test

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology
  • Environmental Science(all)

Cite this

Development of electrodeposited IrO<inf>2</inf> electrodes as anodes in polymer electrolyte membrane water electrolysis. / Lee, Byung Seok; Ahn, Sang Hyun; Park, Hee Young; Choi, Insoo; Yoo, Sung Jong; Kim, Hyoung Juhn; Henkensmeier, Dirk; Kim, Jin Young; Park, Sehkyu; Nam, SukWoo; Lee, Kwan Young; Jang, Jong Hyun.

In: Applied Catalysis B: Environmental, Vol. 179, 01.12.2015, p. 285-291.

Research output: Contribution to journalArticle

Lee, BS, Ahn, SH, Park, HY, Choi, I, Yoo, SJ, Kim, HJ, Henkensmeier, D, Kim, JY, Park, S, Nam, S, Lee, KY & Jang, JH 2015, 'Development of electrodeposited IrO<inf>2</inf> electrodes as anodes in polymer electrolyte membrane water electrolysis', Applied Catalysis B: Environmental, vol. 179, pp. 285-291. https://doi.org/10.1016/j.apcatb.2015.05.027
Lee, Byung Seok ; Ahn, Sang Hyun ; Park, Hee Young ; Choi, Insoo ; Yoo, Sung Jong ; Kim, Hyoung Juhn ; Henkensmeier, Dirk ; Kim, Jin Young ; Park, Sehkyu ; Nam, SukWoo ; Lee, Kwan Young ; Jang, Jong Hyun. / Development of electrodeposited IrO<inf>2</inf> electrodes as anodes in polymer electrolyte membrane water electrolysis. In: Applied Catalysis B: Environmental. 2015 ; Vol. 179. pp. 285-291.
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abstract = "To reduce the use of noble metals, iridium oxide (IrO2) catalysts are prepared on carbon paper (CP) by electrodeposition for use as the anodes in polymer electrolyte membrane water electrolysis (PEMWE). The activities of the fabricated electrodes toward the oxygen evolution reaction are evaluated. The loading amount and morphology of the IrO2 deposits are varied by controlling the electrodeposition potential (Edep) and time (tdep). When electrodeposited at 0.7V, the IrO2 loading ranges from 0.007 to 0.464mgcm-2 (tdep: 1~30min). In the PEMWE test at 90°C, the IrO2/CP electrode with an IrO2 loading of 0.1mgcm-2 shows the highest performance (1.92Acm-2 at 1.8V) in which high IrO2 utilization is achieved without significant exposure of the substrate carbon surface. The developed IrO2/CP electrodes provide cell performances comparable to those in previous reports with a higher IrO2 loading, indicating markedly enhanced mass activity.",
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AB - To reduce the use of noble metals, iridium oxide (IrO2) catalysts are prepared on carbon paper (CP) by electrodeposition for use as the anodes in polymer electrolyte membrane water electrolysis (PEMWE). The activities of the fabricated electrodes toward the oxygen evolution reaction are evaluated. The loading amount and morphology of the IrO2 deposits are varied by controlling the electrodeposition potential (Edep) and time (tdep). When electrodeposited at 0.7V, the IrO2 loading ranges from 0.007 to 0.464mgcm-2 (tdep: 1~30min). In the PEMWE test at 90°C, the IrO2/CP electrode with an IrO2 loading of 0.1mgcm-2 shows the highest performance (1.92Acm-2 at 1.8V) in which high IrO2 utilization is achieved without significant exposure of the substrate carbon surface. The developed IrO2/CP electrodes provide cell performances comparable to those in previous reports with a higher IrO2 loading, indicating markedly enhanced mass activity.

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