| 旋转环-盘电极研究MnO2还原机理 |
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| 引用本文： | 田建华,谷林锳. 旋转环-盘电极研究MnO2还原机理[J]. 物理化学学报, 1996, 12(5): 446-450. DOI: 10.3866/PKU.WHXB19960512 |
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| 作者姓名： | 田建华 谷林锳 |
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| 作者单位： | Department of Applied Chemistry,Tiajin University,Tianjin 300072 |
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| 摘 要： | 目前大多数人认为二氧化锰的阴极还原是按电子-质子机理进行的．但也有人认为氧化氢氧化锰（MnOOH）并不是电子-质子机理的初级产物，而初级产物是二价锰离子，MnOOH是Mn2＋与MnO2作用的结果．早在五十年代以Cahoon为代表的人们就提出这种观点[1]；后来由于Vosburgh[2][3]问和K
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| 关 键 词： | MnO2 旋转环-盘电极 MnO2阴极还原 |
| 收稿时间： | 1995-08-14 |
| 修稿时间： | 1995-11-13 |
Study of the Reduction Mechanism of MnO_2 by Rotating Ring-Disk Electrode |
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| Tian Jianhua, Gu Linying. Study of the Reduction Mechanism of MnO_2 by Rotating Ring-Disk Electrode[J]. Acta Physico-Chimica Sinica, 1996, 12(5): 446-450. DOI: 10.3866/PKU.WHXB19960512 |
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| Authors: | Tian Jianhua Gu Linying |
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| Affiliation: | Department of Applied Chemistry,Tiajin University,Tianjin 300072 |
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| Abstract: | The cathodic reduction mechanism of MnO2 electrode is studied by means of the rotating ring-disk electrode. The mass transport process in the solution plays an important role in the reduction process of MnO2 electrode. The relation between IR-1 and ω-1/2 is deduced as a diagnostic criterion of the reduction mechanism. The dissolution-precipitation and the electron-proton mechanism occur simultaneously but the relative contributions are quite different in various pH value solutions. |
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| Keywords: | MnO_2 Rotating ring-disk electrode Cathodic reduction of MnO_2 |
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