| Electrocatalytic properties of Ni-S-Co coating electrode for hydrogen evolution in alkaline medium |
| |
| 作者姓名： | 袁铁锤 李瑞迪 周科朝 |
| |
| 作者单位： | State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China |
| |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| |
| 摘 要： | Amorphous Ni-S-Co alloy was prepared by means of chemical electro-deposition method on the foam nickel matrix. The surface morphology and microstructure of Ni-S-Co coatings were studied usmg SEM and XRD, and the electrochemical properties were tested by electrochemical methods. The results show that the coating has amorphous structure and the particles of the surface are fine with large specific surface area. The Ni-S-Co alloy is more active with lower potential for hydrogen evolution, higher exchange current density and lower activation energy compared with Ni and Ni-S electrode. Its hydrogen evolution reaction（HER） is enhanced, the size of particles of surface decreases and the surface area increases after being activated by KOH alkaline solution.
|
| 关 键 词： | 无定形合金 镍硫钴涂层 电镀 氢反应 电催化性能 |
| 收稿时间： | 26 September 2006 |
| 修稿时间： | 2006-09-262006-10-25 |
Electrocatalytic properties of Ni-S-Co coating electrode for hydrogen evolution in alkaline medium |
| |
| YUAN Tie-chui,LI Rui-di,ZHOU Ke-chao.Electrocatalytic properties of Ni-S-Co coating electrode for hydrogen evolution in alkaline medium[J].Transactions of Nonferrous Metals Society of China,2007,17(4):762-765. |
| |
| Authors: | YUAN Tie-chui LI Rui-di ZHOU Ke-chao |
| |
| Affiliation: | State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China |
| |
| Abstract: | Amorphous Ni-S-Co alloy was prepared by means of chemical electro-deposition method on the foam nickel matrix. The surface morphology and microstructure of Ni-S-Co coatings were studied using SEM and XRD, and the electrochemical properties were tested by electrochemical methods. The results show that the coating has amorphous structure and the particles of the surface are fine with large specific surface area. The Ni-S-Co alloy is more active with lower potential for hydrogen evolution, higher exchange current density and lower activation energy compared with Ni and Ni-S electrode. Its hydrogen evolution reaction(HER) is enhanced, the size of particles of surface decreases and the surface area increases after being activated by KOH alkaline solution. |
| |
| Keywords: | Ni-S-Co amorphous alloy electro-deposition hydrogen evolution reaction |
| 本文献已被 维普 万方数据 ScienceDirect 等数据库收录！ |
