Anion exchange membrane water electrolyzer with an ultra-low loading of Pt-decorated Ni electrocatalyst

Sang Hyun Ahn; Sung Jong Yoo; Hyoung Juhn Kim; Dirk Henkensmeier; Suk Woo Nam; Soo Kil Kim; Jong Hyun Jang

doi:10.1016/j.apcatb.2015.07.020

Anion exchange membrane water electrolyzer with an ultra-low loading of Pt-decorated Ni electrocatalyst

Sang Hyun Ahn
, Sung Jong Yoo
, Hyoung Juhn Kim
, Dirk Henkensmeier
, Suk Woo Nam
, Soo Kil Kim
, Jong Hyun Jang^*

^*Corresponding author for this work

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

58 Citations (Scopus)

Abstract

The particle-type electrodes with ultra-low electrocatalyst loading (<10μgcm^-2) were developed as cathodes in the anion exchange membrane water electrolyzer (AEMWE). The Pt-decorated Ni electrocatalysts were prepared on the surface of carbon paper by Ni electrodeposition and subsequent displacement of Ni by Pt; the composition and morphology were controlled by varying HCl concentration. In half cell test, the increase of hydrogen evolution reaction (HER) activity by Pt decoration was confirmed for Pt-Ni/CP-2 that has Pt ratio of 39.4% (1.85μg_Ptcm^-2). A membrane electrode assembly employing Pt-Ni/CP-2 as the HER electrode (total catalyst loading: 13.2μgcm^-2) exhibited a current density of 250mAcm^-2 at 1.9V_cell (50°C), which is comparable to the previous reports with much larger loading of 3.1~80mgcm^-2.

Original language	English
Pages (from-to)	674-679
Number of pages	6
Journal	Applied Catalysis B: Environmental
Volume	180
DOIs	https://doi.org/10.1016/j.apcatb.2015.07.020
Publication status	Published - 2016

Bibliographical note

Publisher Copyright:
© 2015 Elsevier B.V.

Keywords

Anion exchange membrane water electrolyzer
Hydrogen evolution reaction
Pt-decorated Ni electrocatalyst
Ultra-low Pt loading

ASJC Scopus subject areas

Catalysis
General Environmental Science
Process Chemistry and Technology

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10.1016/j.apcatb.2015.07.020

Cite this

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title = "Anion exchange membrane water electrolyzer with an ultra-low loading of Pt-decorated Ni electrocatalyst",

abstract = "The particle-type electrodes with ultra-low electrocatalyst loading (<10μgcm-2) were developed as cathodes in the anion exchange membrane water electrolyzer (AEMWE). The Pt-decorated Ni electrocatalysts were prepared on the surface of carbon paper by Ni electrodeposition and subsequent displacement of Ni by Pt; the composition and morphology were controlled by varying HCl concentration. In half cell test, the increase of hydrogen evolution reaction (HER) activity by Pt decoration was confirmed for Pt-Ni/CP-2 that has Pt ratio of 39.4\% (1.85μgPtcm-2). A membrane electrode assembly employing Pt-Ni/CP-2 as the HER electrode (total catalyst loading: 13.2μgcm-2) exhibited a current density of 250mAcm-2 at 1.9Vcell (50°C), which is comparable to the previous reports with much larger loading of 3.1\textasciitilde{}80mgcm-2.",

keywords = "Anion exchange membrane water electrolyzer, Hydrogen evolution reaction, Pt-decorated Ni electrocatalyst, Ultra-low Pt loading",

author = "Ahn, \{Sang Hyun\} and Yoo, \{Sung Jong\} and Kim, \{Hyoung Juhn\} and Dirk Henkensmeier and Nam, \{Suk Woo\} and Kim, \{Soo Kil\} and Jang, \{Jong Hyun\}",

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

year = "2016",

doi = "10.1016/j.apcatb.2015.07.020",

language = "English",

volume = "180",

pages = "674--679",

journal = "Applied Catalysis B: Environmental",

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T1 - Anion exchange membrane water electrolyzer with an ultra-low loading of Pt-decorated Ni electrocatalyst

AU - Ahn, Sang Hyun

AU - Yoo, Sung Jong

AU - Kim, Hyoung Juhn

AU - Henkensmeier, Dirk

AU - Nam, Suk Woo

AU - Kim, Soo Kil

AU - Jang, Jong Hyun

PY - 2016

Y1 - 2016

N2 - The particle-type electrodes with ultra-low electrocatalyst loading (<10μgcm-2) were developed as cathodes in the anion exchange membrane water electrolyzer (AEMWE). The Pt-decorated Ni electrocatalysts were prepared on the surface of carbon paper by Ni electrodeposition and subsequent displacement of Ni by Pt; the composition and morphology were controlled by varying HCl concentration. In half cell test, the increase of hydrogen evolution reaction (HER) activity by Pt decoration was confirmed for Pt-Ni/CP-2 that has Pt ratio of 39.4% (1.85μgPtcm-2). A membrane electrode assembly employing Pt-Ni/CP-2 as the HER electrode (total catalyst loading: 13.2μgcm-2) exhibited a current density of 250mAcm-2 at 1.9Vcell (50°C), which is comparable to the previous reports with much larger loading of 3.1~80mgcm-2.

AB - The particle-type electrodes with ultra-low electrocatalyst loading (<10μgcm-2) were developed as cathodes in the anion exchange membrane water electrolyzer (AEMWE). The Pt-decorated Ni electrocatalysts were prepared on the surface of carbon paper by Ni electrodeposition and subsequent displacement of Ni by Pt; the composition and morphology were controlled by varying HCl concentration. In half cell test, the increase of hydrogen evolution reaction (HER) activity by Pt decoration was confirmed for Pt-Ni/CP-2 that has Pt ratio of 39.4% (1.85μgPtcm-2). A membrane electrode assembly employing Pt-Ni/CP-2 as the HER electrode (total catalyst loading: 13.2μgcm-2) exhibited a current density of 250mAcm-2 at 1.9Vcell (50°C), which is comparable to the previous reports with much larger loading of 3.1~80mgcm-2.

KW - Anion exchange membrane water electrolyzer

KW - Hydrogen evolution reaction

KW - Pt-decorated Ni electrocatalyst

KW - Ultra-low Pt loading

UR - https://www.scopus.com/pages/publications/84938152596

U2 - 10.1016/j.apcatb.2015.07.020

DO - 10.1016/j.apcatb.2015.07.020

M3 - Article

AN - SCOPUS:84938152596

SN - 0926-3373

VL - 180

SP - 674

EP - 679

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

ER -

Anion exchange membrane water electrolyzer with an ultra-low loading of Pt-decorated Ni electrocatalyst

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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