| Ni-W-TiO2复合镀工艺及其镀层性能研究 |
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| 引用本文： | 邹勇进,肖作安,费锡明,任新林.Ni-W-TiO2复合镀工艺及其镀层性能研究[J].材料保护,2004,37(12):24-26. |
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| 作者姓名： | 邹勇进 肖作安 费锡明 任新林 |
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| 作者单位： | 华中师范大学化学学院,湖北,武汉,430079;华中师范大学化学学院,湖北,武汉,430079;华中师范大学化学学院,湖北,武汉,430079;华中师范大学化学学院,湖北,武汉,430079 |
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| 摘 要： | 为了进一步提高Ni-W合金镀层的析氢电催化活性,用电沉积方法制备了Ni-W-TiO2复合镀层,通过阴极极化曲线和交流阻抗等电化学技术研究了其在碱性溶液中的析氢电催化活性,并用扫描电镜观察了电极的表面形貌.结果表明,在Ni-W合金中掺入TiO2微粒可增大电极的比表面积,并改变Ni-W合金在碱性介质中的析氢反应机理.Ni-W-TiO2复合镀层有较高的析氢电催化活性,可用作电解水反应的活性电极.
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| 关 键 词： | 电沉积 Ni-W-TiO2 复合镀层 电催化 |
| 文章编号： | 1001-1560(2004)12-0024-03 |
Preparation Technology and Properties of Nickel- Tungsten-Titanium Dioxide Composite Plating |
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| ZOU Yong- jin,XIAO Zuo-an,FEI Xi-ming,REN Xin-lin.Preparation Technology and Properties of Nickel- Tungsten-Titanium Dioxide Composite Plating[J].Journal of Materials Protection,2004,37(12):24-26. |
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| Authors: | ZOU Yong- jin XIAO Zuo-an FEI Xi-ming REN Xin-lin |
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| Abstract: | In order to further improve the electrocatalytic activity of nickel- tungsten alloy plating for hydrogen evolution, the nickel-tungsten -titanium dioxide composite plating was prepared by electrodepo- sition, and its electrocatalytic properties for hydrogen evolution reaction were studied in alkaline solution by means of cathodic polarization curve, AC impedance technique as well as surface corrosion morphology of electrodes were observed using SEM. The experimental results show that the introduction of titanium dioxide into the Ni- W alloy increases the specific surface area of alloy e- lectrode, and changes the hydrogen evolution mechanism. The Ni-W-TiO_2 composite coating has high electrocatalytic activity for hydrogen evolution reaction and can be used as active elec- trode for electrolytic water reaction. |
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| Keywords: | electrodepositing nickel- tungsten- titanium dioxide composite plating electrocatalysis |
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