| TiO2薄膜光催化气相甲醇制氢 |
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| 引用本文： | 崔文权,冯良荣,徐成华,吕绍洁,邱发礼.TiO2薄膜光催化气相甲醇制氢[J].催化学报,2003,24(12):937-941. |
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| 作者姓名： | 崔文权 冯良荣 徐成华 吕绍洁 邱发礼 |
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| 作者单位： | 中国科学院成都有机化学研究所,四川成都,610041 |
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| 基金项目： | 中国科学院科研项目，四川省攀枝花市科技成果孵化基金，，SP2002-2，， |
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| 摘 要： | 在气相连续流动装置中以TiO2薄膜为光催化剂，对甲醇的脱氢反应进行了研究．考察了空速、光照时间和反应温度对甲醇转化率的影响以及产氢量与添加的水蒸气量和甲醇浓度的关系，并将TiO2薄膜催化剂的光催化活性与TiO2纳米粉体催化剂进行了比较．反应动力学研究表明，光催化甲醇脱氢反应为一级反应，其活化能为8．64kJ／mol．探讨了该反应的机理．
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| 关 键 词： | 二氧化钛 薄膜 光催化 甲醇 氢气 活化能 反应机理 |
| 文章编号： | 0253-9837(2003)12-0937-05 |
| 收稿时间： | 2003-12-25 |
Production of Hydrogen by Photocatalytic Decomposition of Gaseous Methanol on TiO2 Film |
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| CUI Wenquan,FENG Liangrong,XU Chenghua,L Shaojie,Qiu Fali.Production of Hydrogen by Photocatalytic Decomposition of Gaseous Methanol on TiO2 Film[J].Chinese Journal of Catalysis,2003,24(12):937-941. |
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| Authors: | CUI Wenquan FENG Liangrong XU Chenghua L Shaojie Qiu Fali |
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| Institution: | CUI Wenquan,FENG Liangrong,XU Chenghua,L Shaojie,Qiu Fali * |
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| Abstract: | The photocatalytic decomposition of gaseous methanol on TiO 2 film was performed in a continuous flow reactor. The effect of various factors, such as space velocity, illuminating time, reaction temperature, water vapor added and methanol concentration, on the photocatalysis process was investigated, and the photocatalytic activity of nano TiO 2 film was compared with TiO 2 nanoparticles. The reaction order of the methanol decomposition was calculated through the results of kinetics, and the activation energy of the reaction was 8 46 kJ/mol . According to the kinetic and GC/MS analytical results, the reaction mechanism was deduced. |
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| Keywords: | titania film photocatalysis methanol hydrogen activation energy reaction mechanism |
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