| 钯氧化物的电化学与光电子能谱 |
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| 引用本文： | 吴辉煌,吴宝璋,周绍民.钯氧化物的电化学与光电子能谱[J].物理化学学报,1992,8(4):519-522. |
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| 作者姓名： | 吴辉煌 吴宝璋 周绍民 |
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| 作者单位： | Department of Chemistry, Xiamen Univeristry, Xiamen 361005 |
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| 摘 要： | 不少研究者曾分别利用金属钯的表面化学氧化、电化学氧化或喷涂钯氧化物层等方法制备钯氧化物pH电极,已有的工作表明:制备条件对电极的pH响应范围、响应速度和重现性均有明显影响。因此,在继续寻找最佳制备条件的同时有必要对决定电极性能的因素进行深入的研究.本文旨在通过比较由两种方法制得的钯氧化物电极的组成和伏安行为,探讨影响电极pH敏感性能的因素。
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| 关 键 词： | 钯氧化物 pH传感器 XPS分析 阻抗谱 |
| 收稿时间： | 1991-01-15 |
| 修稿时间： | 1991-07-13 |
ELECTROCHEMISTRY AND XPS OF PALLADIUM OXIDES |
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| Wu Huihuang,Wu Baozhang,Zhou Shaomin.ELECTROCHEMISTRY AND XPS OF PALLADIUM OXIDES[J].Acta Physico-Chimica Sinica,1992,8(4):519-522. |
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| Authors: | Wu Huihuang Wu Baozhang Zhou Shaomin |
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| Institution: | Department of Chemistry, Xiamen Univeristry, Xiamen 361005 |
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| Abstract: | Palladium oxide electrodes were prepared by decomposition of Pd(NO_3)_2 or thermal oxidation of Pd, their voltammetric characteristics were found to be dependent on preparation methods. XPS analysis showed that these electrodes had different compo-sitions. The impedance behavour of the electrodes can be presented with a simpleeguivalent circuit containing a constant phase-angle element, indicating the microin-homogeneity of the oxide layers. The pH-sensing properties of the electrodes weremeasured and the pH response mechanism was discussed. |
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| Keywords: | Palladium oxides pH sensor XPS analysis Impedance spectroscopy |
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