| 浓碱溶液中铜阳极产物的阴极还原行为研究I: Cu(I)产物的阴极还原 |
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| 引用本文： | 何建波,李学良,林建新.浓碱溶液中铜阳极产物的阴极还原行为研究I: Cu(I)产物的阴极还原[J].化学学报,1997,55(11):1103-1107. |
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| 作者姓名： | 何建波 李学良 林建新 |
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| 作者单位： | 合肥工业大学化工学院 |
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| 摘 要： | 采用特定的电势扫描程序测出了浓碱溶液中Cu(I)阳极产物的多重还原电流峰。根据各峰之间转化或竞争的关系, 提出了亚铜氧化物的吸附成相和溶解沉淀两种途径共存的形成机理。为确定各阴极峰的归属, 本文采用了将阴极电流峰与XRD和XPS特征峰进行半定量对比的方法。
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| 关 键 词： | 铜 阴极 Ｘ射线衍射分析 还原 Ｘ射线光电子谱法 电极反应 氧化亚铜 |
Investigation on electro-reduction behaviour of copper anodic products in concentrated NaOH solutions I. Electro-reduction of Cu(I) products |
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| HE JIANBO,LI XUELIANG,LIN JIANXIN.Investigation on electro-reduction behaviour of copper anodic products in concentrated NaOH solutions I. Electro-reduction of Cu(I) products[J].Acta Chimica Sinica,1997,55(11):1103-1107. |
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| Authors: | HE JIANBO LI XUELIANG LIN JIANXIN |
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| Abstract: | Specific potential scan programs have been used to investigate the electro-reduction behaviour of cuprous oxides anodically formed on copper electrodes in concentrated NaOH solutions. The obtained voltammograms exhibit 3 cathodic current peaks. The peak charges are closely related to anodic polarization potential, polarization time and potential scan rate. These cathodic peaks have been semi-quantitatively contrasted with XRD and XPS spectra to identify anodic products reduced under each cathodic peak. A complex model including adsorption-crystallization and dissolution-precipitation mechanisms for the formation of cuprous oxide is proposed. |
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| Keywords: | COPPER CATHODE X-RAY DIFFRACTION ANALYSIS REDUCTION X-RAY PHOTOELECTRON SPECTROMETRY ELECTRODE REACTION |
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