Electrochemically fabricated NiCu alloy catalysts for hydrogen production in alkaline water electrolysis

Sang Hyun Ahn; Hee Young Park; Insoo Choi; Sung Jong Yoo; Seung Jun Hwang; Hyoung Juhn Kim; Eunae Cho; Chang Won Yoon; Hansoo Park; Hyungbin Son; Juan Martin Hernandez; Suk Woo Nam; Tae Hoon Lim; Soo Kil Kim; Jong Hyun Jang

doi:10.1016/j.ijhydene.2013.07.103

Electrochemically fabricated NiCu alloy catalysts for hydrogen production in alkaline water electrolysis

Sang Hyun Ahn, Hee Young Park, Insoo Choi, Sung Jong Yoo, Seung Jun Hwang, Hyoung Juhn Kim, Eunae Cho, Chang Won Yoon, Hansoo Park, Hyungbin Son, Juan Martin Hernandez, Suk Woo Nam, Tae Hoon Lim, Soo Kil Kim, Jong Hyun Jang

GREEN SCHOOL (Graduate School of Energy and Environment)

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

69 Citations (Scopus)

Abstract

NiCu alloy catalysts for alkaline water electrolysis were prepared by an electrodeposition method varying the alloy composition. When the deposition potential became more positive, the bulk and surface Cu content in NiCu alloys as well as the catalyst particle size gradually increased, which were confirmed by various spectroscopic and electrochemical techniques. The surface coverage of the catalysts was found to be a function of the deposition potential, as well. The catalytic activities of the prepared NiCu alloys to hydrogen evolution reaction (HER) were investigated with cyclic voltammetry in a 6.0 M KOH electrolyte at 298 K, and the mass activities of NiCu alloys were correlated with bulk and surface Cu contents to investigate the Cu alloying effect.

Original language	English
Pages (from-to)	13493-13501
Number of pages	9
Journal	International Journal of Hydrogen Energy
Volume	38
Issue number	31
DOIs	https://doi.org/10.1016/j.ijhydene.2013.07.103
Publication status	Published - 2013 Oct 17

Keywords

Alkaline water electrolysis
Electrodeposition
Hydrogen evolution reaction
Nickel copper alloy catalyst

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ijhydene.2013.07.103

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Ahn, S. H., Park, H. Y., Choi, I., Yoo, S. J., Hwang, S. J., Kim, H. J., Cho, E., Yoon, C. W., Park, H., Son, H., Hernandez, J. M., Nam, S. W., Lim, T. H., Kim, S. K., & Jang, J. H. (2013). Electrochemically fabricated NiCu alloy catalysts for hydrogen production in alkaline water electrolysis. International Journal of Hydrogen Energy, 38(31), 13493-13501. https://doi.org/10.1016/j.ijhydene.2013.07.103

Ahn, SH, Park, HY, Choi, I, Yoo, SJ, Hwang, SJ, Kim, HJ, Cho, E, Yoon, CW, Park, H, Son, H, Hernandez, JM, Nam, SW, Lim, TH, Kim, SK & Jang, JH 2013, 'Electrochemically fabricated NiCu alloy catalysts for hydrogen production in alkaline water electrolysis', International Journal of Hydrogen Energy, vol. 38, no. 31, pp. 13493-13501. https://doi.org/10.1016/j.ijhydene.2013.07.103

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title = "Electrochemically fabricated NiCu alloy catalysts for hydrogen production in alkaline water electrolysis",

abstract = "NiCu alloy catalysts for alkaline water electrolysis were prepared by an electrodeposition method varying the alloy composition. When the deposition potential became more positive, the bulk and surface Cu content in NiCu alloys as well as the catalyst particle size gradually increased, which were confirmed by various spectroscopic and electrochemical techniques. The surface coverage of the catalysts was found to be a function of the deposition potential, as well. The catalytic activities of the prepared NiCu alloys to hydrogen evolution reaction (HER) were investigated with cyclic voltammetry in a 6.0 M KOH electrolyte at 298 K, and the mass activities of NiCu alloys were correlated with bulk and surface Cu contents to investigate the Cu alloying effect.",

keywords = "Alkaline water electrolysis, Electrodeposition, Hydrogen evolution reaction, Nickel copper alloy catalyst",

author = "Ahn, {Sang Hyun} and Park, {Hee Young} and Insoo Choi and Yoo, {Sung Jong} and Hwang, {Seung Jun} and Kim, {Hyoung Juhn} and Eunae Cho and Yoon, {Chang Won} and Hansoo Park and Hyungbin Son and Hernandez, {Juan Martin} and Nam, {Suk Woo} and Lim, {Tae Hoon} and Kim, {Soo Kil} and Jang, {Jong Hyun}",

note = "Funding Information: This work was supported by the Joint Research Project funded by the Korea Research Council of Fundamental Science & Technology (KRCF), Republic of Korea (Seed-10-2), by the “COE (Center of Excellence)” program and Institutional Program (contract number 2E22873-12-020) of the Korea Institute of Science and Technology, and by the Korea CCS R&D Center (KCRC) grant funded by the Korea government (Ministry of Science, ICT & Future Planning) (No. 2013038315 ). ",

year = "2013",

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doi = "10.1016/j.ijhydene.2013.07.103",

language = "English",

volume = "38",

pages = "13493--13501",

journal = "International Journal of Hydrogen Energy",

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T1 - Electrochemically fabricated NiCu alloy catalysts for hydrogen production in alkaline water electrolysis

AU - Ahn, Sang Hyun

AU - Park, Hee Young

AU - Choi, Insoo

AU - Yoo, Sung Jong

AU - Hwang, Seung Jun

AU - Kim, Hyoung Juhn

AU - Cho, Eunae

AU - Yoon, Chang Won

AU - Park, Hansoo

AU - Son, Hyungbin

AU - Hernandez, Juan Martin

AU - Nam, Suk Woo

AU - Lim, Tae Hoon

AU - Kim, Soo Kil

AU - Jang, Jong Hyun

N1 - Funding Information: This work was supported by the Joint Research Project funded by the Korea Research Council of Fundamental Science & Technology (KRCF), Republic of Korea (Seed-10-2), by the “COE (Center of Excellence)” program and Institutional Program (contract number 2E22873-12-020) of the Korea Institute of Science and Technology, and by the Korea CCS R&D Center (KCRC) grant funded by the Korea government (Ministry of Science, ICT & Future Planning) (No. 2013038315 ).

PY - 2013/10/17

Y1 - 2013/10/17

N2 - NiCu alloy catalysts for alkaline water electrolysis were prepared by an electrodeposition method varying the alloy composition. When the deposition potential became more positive, the bulk and surface Cu content in NiCu alloys as well as the catalyst particle size gradually increased, which were confirmed by various spectroscopic and electrochemical techniques. The surface coverage of the catalysts was found to be a function of the deposition potential, as well. The catalytic activities of the prepared NiCu alloys to hydrogen evolution reaction (HER) were investigated with cyclic voltammetry in a 6.0 M KOH electrolyte at 298 K, and the mass activities of NiCu alloys were correlated with bulk and surface Cu contents to investigate the Cu alloying effect.

AB - NiCu alloy catalysts for alkaline water electrolysis were prepared by an electrodeposition method varying the alloy composition. When the deposition potential became more positive, the bulk and surface Cu content in NiCu alloys as well as the catalyst particle size gradually increased, which were confirmed by various spectroscopic and electrochemical techniques. The surface coverage of the catalysts was found to be a function of the deposition potential, as well. The catalytic activities of the prepared NiCu alloys to hydrogen evolution reaction (HER) were investigated with cyclic voltammetry in a 6.0 M KOH electrolyte at 298 K, and the mass activities of NiCu alloys were correlated with bulk and surface Cu contents to investigate the Cu alloying effect.

KW - Alkaline water electrolysis

KW - Electrodeposition

KW - Hydrogen evolution reaction

KW - Nickel copper alloy catalyst

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DO - 10.1016/j.ijhydene.2013.07.103

M3 - Article

AN - SCOPUS:84885057363

SN - 0360-3199

VL - 38

SP - 13493

EP - 13501

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 31

ER -

Electrochemically fabricated NiCu alloy catalysts for hydrogen production in alkaline water electrolysis

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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