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研究论文

热对镍阳极膜光电流测定的影响

  • 陈航
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  • 复旦大学化学系

收稿日期: 1999-05-28

  修回日期: 1999-05-28

  网络出版日期: 1999-05-28

The influence of heat on the measurement of photocurrent at the anodic film of nickel electrode

  • Chen HangJiang Zhiyu
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  • (Dept.of Chem.,Fudan Univ.,Shanghai,200433

Received date: 1999-05-28

  Revised date: 1999-05-28

  Online published: 1999-05-28

摘要

镍在碱溶液中阳极膜的形成和性质与化学电源和金属腐蚀等有关.在这方面已有较深入的研究报导.其研究方法也是多种多样,除一般的电化学方法[1,2]外,还有许多现场谱学方法,如:紫外_可见光谱[3],红外光谱[4],光热光谱[5],拉曼光谱[6],椭圆法[7...

本文引用格式

陈航 . 热对镍阳极膜光电流测定的影响[J]. 电化学, 1999 , 5(2) : 125 -129 . DOI: 10.61558/2993-074X.3164

Abstract

The influence of heat on the measurement of photocurrent for nickel electrode in 1 mol/L NaOH solution was investigated by using the photocurrent,photothermal and thermal current methods. It was found that the appearance of photocurrent in potential region of -0.750.20 V(vs. Hg/HgO electrode) was due to the p_type semiconductor properties of Ni(OH)2 film in which is agree with the previous report. In the Ni(OH)2/NiOOH redox potential region, the increase of temperature at the surface of working electrode during irradiation significantly promoted the electrochemical reaction strongly. The photocurrent observed in potential region 0.200.57 V is mainly attributed to the influence of heat produced upon irradiation. This is contrary to the view of the photoelectrochemical properties of the semiconductor reported in literature.

参考文献

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