期刊
KOREAN JOURNAL OF CHEMICAL ENGINEERING
卷 37, 期 8, 页码 1379-1386出版社
KOREAN INSTITUTE CHEMICAL ENGINEERS
DOI: 10.1007/s11814-020-0587-1
关键词
Water Electrolysis; Copper Foam Support; Nickel Phosphide Catalyst; Gas Diffusion Electrode; Electrodeposition
资金
- National Research Foundation of Korea (NRF) - Korean government MSIT [2019M3E6A1103818]
- Chung-Ang University Research Scholarship Grant in 2019
- National Research Foundation of Korea [2019M3E6A1103818] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The development of high-performance and low-cost electrodes is essential for hydrogen production using a proton exchange membrane water electrolyzer (PEMWE). Herein, we report an electrochemical method for the fabrication of a Ni-P based cathode for a PEMWE single cell. A porous copper foam (CF) is fabricated on carbon paper (CP) by two-step electrodeposition to obtain a large number of active sites for Ni-P formation. The high conductivity of the Cu metallic support is expected to reduce the charge transfer resistance. After the Ni-P electrodeposition on CF, an anodic leaching process is conducted for the selective dissolution of the excess Ni metal formed during the electro-deposition, thus enabling the modification of the electronic structure of the catalyst. The electrode optimized in half-cell tests is used as the cathode for a PEMWE single cell. The PEMWE cells exhibit a current density of 0.67 A/cm(2)at 2.0V(cell)which is higher than or comparable to the performance previously reported in the literature.
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