| Pt/陶瓷电极上醇类的阳极氧化作用及其钼和钨的添加对电极活性的影响 |
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| 引用本文： | 廖世军,Vladimir Linkov,Leslie Petrik.Pt/陶瓷电极上醇类的阳极氧化作用及其钼和钨的添加对电极活性的影响[J].中山大学学报(自然科学版),2003,42(Z1):71-74. |
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| 作者姓名： | 廖世军 Vladimir Linkov Leslie Petrik |
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| 作者单位： | 1. 华南理工大学应用化学系,广东,广州,510641
2. Department of Chemistry, The University of the Western Cape, Private Bag X17,Bellville 7535, South Africa |
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| 摘 要： | 采用电沉积Pt在陶瓷膜的方法制得了一种新型的可用于醇类阳极氧化的陶瓷基底电极,采用在电沉积前用氧化钨的溶胶或硅钨酸或硅钼酸的溶液浸渍陶瓷膜的方法可将钨和钼添加到电极中.实验发现钨和钼的添加可以十分显著地提高催化剂的活性,如对于甲醇的阳极氧化,添加硅钼酸的电极上的电流密度可达到187
mA/cm2,为相同条件下不含硅钼酸的电极的5倍多.对于乙醇的阳极氧化也得到了相同的结果.
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| 关 键 词： | 阳极氧化 醇 钼 无机膜 电极 |
Effect of Molybdenum and Tungsten on the Activity of Pt/ceramic Membrane Electrodes for Anodic Oxidation of Alcohol |
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| Vladimir Linkov,Leslie Petrik.Effect of Molybdenum and Tungsten on the Activity of Pt/ceramic Membrane Electrodes for Anodic Oxidation of Alcohol[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2003,42(Z1):71-74. |
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| Authors: | Vladimir Linkov Leslie Petrik |
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| Abstract: | A new type of ceramic-based electrode that could be utilized in anodic oxidation of alcohol was prepared by electrodepositing platinum onto a ceramic membrane. Tungsten and molybdenum were incorporated into the electrode by immersing the membrane in a sol of tungsten oxide or tungstosilicic acid or silicomolybdic acid. The tungsten and molybdenum promoted the activity of the electrode to a considerable degree. The current density of the Pt-Mo-Si/C/M electrode could be as high as 187 mA/cm2 during the oxidation of methanol, and it was five times more active than that of Pt/C/M at the same working conditions. Similar results were obtained in the oxidation of ethanol. |
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| Keywords: | anodic oxidation alcohols molybdenum membrane electrode |
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