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| 乙醇和CO在Pt-WO3/C电极上的电催化氧化 | |
| 引用本文： | 孙芳,邬冰,李桂春,高颖,陆天虹,刘长鹏,邢巍. 乙醇和CO在Pt-WO3/C电极上的电催化氧化[J]. 分子科学学报, 2006, 22(4): 215-218 |
| 作者姓名： | 孙芳 邬冰 李桂春 高颖 陆天虹 刘长鹏 邢巍 |
| 作者单位： | 1. 哈尔滨师范大学化学系,黑龙江,哈尔滨,150080 2. 中国科学院长春应用化学研究所,吉林,长春,130022;南京师范大学化学与环境科学学院,江苏,南京,210097 3. 中国科学院长春应用化学研究所,吉林,长春,130022 4. 南京师范大学化学与环境科学学院,江苏,南京,210097 |
| 基金项目： | 国家科技部“973”基金资助项目(G2000026408)，国家“863”计划资助项目(2003AA517062)，国家自然科学基金资助项目(20573029、20373068、20433060)，黑龙江省教育厅基金资助项目(10531082)，江苏省科技厅高新技术基金资助项目(BG200302)，江苏省教育厅高新技术产业化基金资助项目(JH02-080)，国家“211”工程重点学科建设基金资助项目 |
| 摘 要： | 制备并比较了Pt/C和Pt-WO3/C催化剂对乙醇的电化学氧化活性.发现无论是在酸性溶液中还是中性溶液中,Pt-WO3/C电极对乙醇氧化的电催化活性都比在Pt/C电极上高.这是由于WO3能提供乙醇在Pt上氧化所需的含氧物种,此外WO3能在较低电位下使乙醇氧化的中间产物CO氧化除去,从而提高了催化剂对乙醇氧化的催化活性. |
| 关 键 词： | 乙醇 CO 电氧化 |
| 文章编号： | 1000-9035(2006)04-0215-04 |
| 收稿时间： | 2005-10-06 |
| 修稿时间： | 2005-10-06 |
Electrocatalytic oxidation of ethanol and CO at Pt-WO3/C electrode |
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| SUN Fang,WU Bing,LI Gui-chun,GAO Ying,LU Tian-hong,LIU Chang-peng,XING Wei. Electrocatalytic oxidation of ethanol and CO at Pt-WO3/C electrode[J]. Journal of Molecular Science, 2006, 22(4): 215-218 | |
| Authors: | SUN Fang WU Bing LI Gui-chun GAO Ying LU Tian-hong LIU Chang-peng XING Wei |
| Affiliation: | 1. Department of Chemistry, Harbin Normal University, Harbin 150080,China; 2. Changchun Institute of Applied Chemistry,Chinese Accadmy of Sciences,Changchun 130022,China;3. College of Chemistry and Environmental Science,Nanjing Normal University,Nanjing 210097,China |
| Abstract: | Electrooxidation behavior of ethanol at the Pt-WO_(3)/C and Pt/C electrodes was investigated by LSV techniques.It was found that the electrocatalytic activity of the Pt-WO_(3)/C electrode for electrooxidation of ethanol is higher than that of the Pt/C electrode either in acidic and neutral solutions.The good behavior at the Pt-WO_(3)/C electrode for ethanol electrooxidation is due to that WO_(3) could supply the oxygen-containing species necessary for the electrooxidation of ethanol.The experimental results also show that Pt-WO_(3)/C electrode can promote the CO_(ad) electrooxidation.CO_(ad) is believed to be the intermediate of ethanol oxidation and the main poison of Pt catalyst.CO_(ad)can be electrooxidated at lower potential at Pt-WO_(3)/C than at Pt/C electrode and can be removed from the surface of(Pt-WO_(3)/C) electrode more easily. |
| Keywords: | ethanol CO electrooxidation |
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