Electrochemically fabricated NiCu alloy catalysts for hydrogen production in alkaline water electrolysis
| Autor: | Hyungbin Son, Seung Jun Hwang, Hee-Young Park, Sang Hyun Ahn, Jong Hyun Jang, Chang Won Yoon, Suk Woo Nam, Hyoung-Juhn Kim, Sung Jong Yoo, Insoo Choi, Juan Martin Hernandez, Hansoo Park, Tae Hoon Lim, Soo-Kil Kim, EunAe Cho |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment Alloy Inorganic chemistry Alkaline water electrolysis Energy Engineering and Power Technology chemistry.chemical_element Electrolyte engineering.material Condensed Matter Physics Electrochemistry Catalysis Nickel Fuel Technology chemistry engineering Cyclic voltammetry Hydrogen production |
| Zdroj: | International Journal of Hydrogen Energy. 38:13493-13501 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2013.07.103 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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