引用本文:
张卫国, 姚素薇, 赵转清, 龚正烈. p型单晶硅上电镀纳米Ni-W-P合金电极及其光照析氢研究[J]. 应用化学,
2001, 18(10): 790-793.
Citation: ZHANG Wei-Guo, YAO Su-Wei, ZHAO Zhuan-Qing, GONG Zheng-Lie. Electrodeposition of Nanocrystal Ni-W-P Alloy on p-Si Electrode and Its Hydrogen Evolution Under Illumination[J]. Chinese Journal of Applied Chemistry, 2001, 18(10): 790-793.
Citation: ZHANG Wei-Guo, YAO Su-Wei, ZHAO Zhuan-Qing, GONG Zheng-Lie. Electrodeposition of Nanocrystal Ni-W-P Alloy on p-Si Electrode and Its Hydrogen Evolution Under Illumination[J]. Chinese Journal of Applied Chemistry, 2001, 18(10): 790-793.
p型单晶硅上电镀纳米Ni-W-P合金电极及其光照析氢研究
摘要:
通过电化学方法在半导体p型硅上沉积Ni-W-P合金,制备出具有高催化析氢活性的纳米金属/半导体电极.考察了电沉积工艺条件对电极催化析氢性能的影响,用扫描电镜(SEM)观察了电极的表面形貌.结果表明,随着镀液pH值增加、温度升高,Ni-W-P合金镀层结构由晶态向非晶态转变.在50℃,pH=6,电流密度为15A/dm2时,获得了纳米晶Ni-W-P合金,并考察了光照下电极的催化析氢活性.
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关键词:
- 半导体
- / 纳米晶Ni-W-P合金
- / 催化析氢
English
Electrodeposition of Nanocrystal Ni-W-P Alloy on p-Si Electrode and Its Hydrogen Evolution Under Illumination
Abstract:
The nanocrystal Ni-W-P/p-Si electrodes with high catalytic activity for hydrogen evolution were prepared by electrodeposition of Ni-W-P alloy on p-Si. The effects of electroplating conditions on the catalytic activity of electrodes have been investigated, and the surface morphology and structure of the electrodes were investigated by SEM and X-ray diffraction. The result showed that the structure of Ni-W-P alloy deposit changes from crystal to amorphous state with the increase of pH and temperature of electroplating solution. The nanocrystal Ni-W-P alloy was obtained at electroplating conditions of 50℃, pH=6 and current density 15 A/dm2. The catalytic activity of the electrode for hydrogen evolution under illumination was studied.
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Key words:
- semiconductor
- / nanocrystal Ni-W-P alloy
- / hydrogen evolution
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