Direct electrodeposition ofNi-Co-Son carbon paper as an efficient cathode for anion exchange membrane water electrolysers
- Authors
- Guo, Wenwu; Kim, Junhyeong; Kim, Hyunki; Ahn, Sang Hyun
- Issue Date
- Feb-2021
- Publisher
- WILEY
- Keywords
- anion exchange membrane water electrolyser; electrodeposition; hydrogen evolution reaction; self-supported electrode; water electrolysis
- Citation
- INTERNATIONAL JOURNAL OF ENERGY RESEARCH, v.45, no.2, pp 1918 - 1931
- Pages
- 14
- Journal Title
- INTERNATIONAL JOURNAL OF ENERGY RESEARCH
- Volume
- 45
- Number
- 2
- Start Page
- 1918
- End Page
- 1931
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/43436
- DOI
- 10.1002/er.5875
- ISSN
- 0363-907X
1099-114X
- Abstract
- The development of an efficient water electrolyser is essential for sustainable hydrogen production; however, its application remains limited by the insufficient performance of the electrode. Herein, we report a rapid, simple, and cost-effective fabrication of an Ni-Co-S cathode for the hydrogen evolution reaction (HER), which is directly usable for an anion exchange membrane water electrolyser (AEMWE). The Ni-Co-S electrocatalysts are prepared on a carbon paper (CP) substrate by a one-step electrodeposition method by controlling deposition parameters such as the deposition potential, time, and electrolyte composition. The optimized Ni-Co-S/CP electrode demonstrates a high HER activity with an overpotential of 91 mV at -10 mA/cm(2)in 1.0 M KOH. An AEMWE single cell employing the Ni-Co-S/CP cathode coupled with a commercial IrO2/CP anode exhibits a current density of 1.7 A/cm(2)at 2.4 V-cell, which is higher than that of an AEMWE single cell with a commercial Pt/C/CP cathode; this is attributable to the enhancement of the electron and reactant/product transfer via appropriate cathode design.
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Collections - College of Engineering > School of Chemical Engineering and Material Science > 1. Journal Articles
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