| Electrocatalytic Activity of Ti/TiO2 Electrodes in H2SO4 Solution |
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| 作者姓名： | 王雅琼 童宏扬 许文林 |
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| 作者单位： | College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China |
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| 基金项目： | 国家自然科学基金，江苏省自然科学基金 |
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| 摘 要： | Ti/TiO2 electrodes were prepared with the polymeric precursor method (PPM). The structure and morphology of Ti/TiO2 electrodes were examined with XRD and ESEM. The voltammetric charge (q*) of Ti/TiO2 electrodes as cathode in 0.5 mol/L H2SO4 solution was investigated with cyclic voltammetry. It was found that the electrocatalytic activity of the Ti/TiO2 electrodes was affected by the structure and morphology of the Ti/TiO2 electrodes, in other words, was affected by the calcination conditions of preparing the electrodes. The value of q*in was considerably larger than that of q*out, which means that the ‘inner’ active surface area was much larger than the ‘outer’ active surface area, and ‘inner’ active surface played a main role in the electrocatalytic activity of the Ti/TiO2 electrodes.
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| 关 键 词： | voltammetric charge active surface TiO2 electrode electrochemistry |
Electrocatalytic Activity of Ti/TiO2 Electrodes in H2SO4 Solution |
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| WANG Ya-qiong.Electrocatalytic Activity of Ti/TiO2 Electrodes in H2SO4 Solution[J].Chinese Journal of Process Engineering,2003,3(4):356-360. |
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| Authors: | WANG Ya-qiong |
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| Affiliation: | College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China |
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| Abstract: | Ti/TiO2 electrodes were prepared with the polymeric precursor method (PPM). The structure and morphology of Ti/TiO2 electrodes were examined with XRD and ESEM. The voltammetric charge (q*) of Ti/TiO2 electrodes as cathode in 0.5 mol/L H2SO4 solution was investigated with cyclic voltammetry. It was found that the electrocatalytic activity of the Ti/TiO2 electrodes was affected by the structure and morphology of the Ti/TiO2 electrodes, in other words, was affected by the calcination conditions of preparing the electrodes. The value of q*ln was considerably larger than that of q*out,which means that the 'inner' active surface area was much larger than the 'outer' active surface area, and 'inner' active surface played a main role in the electrocatalytic activity of the Ti/TiO2 electrodes. |
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| Keywords: | voltammetric charge active surface TiO2 electrode electrochemistry |
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