Development of electrodeposited IrO2 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; Suk Woo Nam; Kwan Young Lee; Jong Hyun Jang

doi:10.1016/j.apcatb.2015.05.027

Development of electrodeposited IrO₂ 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, Suk Woo Nam, Kwan Young Lee, Jong Hyun Jang

Department of Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

133 Citations (Scopus)

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 (E_dep) and time (t_dep). When electrodeposited at 0.7V, the IrO₂ loading ranges from 0.007 to 0.464mgcm^-2 (t_dep: 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.

Original language	English
Pages (from-to)	285-291
Number of pages	7
Journal	Applied Catalysis B: Environmental
Volume	179
DOIs	https://doi.org/10.1016/j.apcatb.2015.05.027
Publication status	Published - 2015 Dec 1

Bibliographical note

Publisher Copyright:
© 2015 Elsevier B.V.

Keywords

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

ASJC Scopus subject areas

Catalysis
General Environmental Science
Process Chemistry and Technology

Access to Document

10.1016/j.apcatb.2015.05.027

Cite this

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title = "Development of electrodeposited IrO2 electrodes as anodes in polymer electrolyte membrane water electrolysis",

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.",

keywords = "Electrodeposition, Iridium oxide, Oxygen evolution reaction, Polymer electrolyte membrane water electrolysis, Single cell test",

author = "Lee, {Byung Seok} and Ahn, {Sang Hyun} and Park, {Hee Young} and Insoo Choi and Yoo, {Sung Jong} and Kim, {Hyoung Juhn} and Dirk Henkensmeier and Kim, {Jin Young} and Sehkyu Park and Nam, {Suk Woo} and Lee, {Kwan Young} and Jang, {Jong Hyun}",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

month = dec,

day = "1",

doi = "10.1016/j.apcatb.2015.05.027",

language = "English",

volume = "179",

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T1 - Development of electrodeposited IrO2 electrodes as anodes in polymer electrolyte membrane water electrolysis

AU - Lee, Byung Seok

AU - Ahn, Sang Hyun

AU - Park, Hee Young

AU - Choi, Insoo

AU - Yoo, Sung Jong

AU - Kim, Hyoung Juhn

AU - Henkensmeier, Dirk

AU - Kim, Jin Young

AU - Park, Sehkyu

AU - Nam, Suk Woo

AU - Lee, Kwan Young

AU - Jang, Jong Hyun

PY - 2015/12/1

Y1 - 2015/12/1

N2 - 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.

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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