Abstract
The particle-type electrodes with ultra-low electrocatalyst loading (<10μgcm<sup>-2</sup>) 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<inf>Pt</inf>cm<sup>-2</sup>). A membrane electrode assembly employing Pt-Ni/CP-2 as the HER electrode (total catalyst loading: 13.2μgcm<sup>-2</sup>) exhibited a current density of 250mAcm<sup>-2</sup> at 1.9V<inf>cell</inf> (50°C), which is comparable to the previous reports with much larger loading of 3.1~80mgcm<sup>-2</sup>.
| Original language | English |
|---|---|
| Pages (from-to) | 674-679 |
| Number of pages | 6 |
| Journal | Applied Catalysis B: Environmental |
| Volume | 180 |
| DOIs | |
| Publication status | Published - 2016 |
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Keywords
- Anion exchange membrane water electrolyzer
- Hydrogen evolution reaction
- Pt-decorated Ni electrocatalyst
- Ultra-low Pt loading
ASJC Scopus subject areas
- Catalysis
- Process Chemistry and Technology
- Environmental Science(all)
Cite this
Anion exchange membrane water electrolyzer with an ultra-low loading of Pt-decorated Ni electrocatalyst. / Ahn, Sang Hyun; Yoo, Sung Jong; Kim, Hyoung Juhn; Henkensmeier, Dirk; Nam, SukWoo; Kim, Soo Kil; Jang, Jong Hyun.
In: Applied Catalysis B: Environmental, Vol. 180, 2016, p. 674-679.Research output: Contribution to journal › Article
}
TY - JOUR
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, SukWoo
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
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UR - http://www.scopus.com/inward/citedby.url?scp=84938152596&partnerID=8YFLogxK
U2 - 10.1016/j.apcatb.2015.07.020
DO - 10.1016/j.apcatb.2015.07.020
M3 - Article
AN - SCOPUS:84938152596
VL - 180
SP - 674
EP - 679
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
SN - 0926-3373
ER -