| 碱性介质中铂/碳气凝胶电催化氧化甲醇 |
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| 引用本文： | 刘勇,杨浩,高丽,毛立群. 碱性介质中铂/碳气凝胶电催化氧化甲醇[J]. 化学研究, 2013, 0(4): 408-411 |
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| 作者姓名： | 刘勇 杨浩 高丽 毛立群 |
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| 作者单位： | 河南大学化学化工学院 |
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| 摘 要： | 以间苯二酚和甲醛为原料,采用溶胶-凝胶法制备了碳气凝胶(CAs);以CAs为载体,利用乙二醇还原法制备了Pt/CAs催化剂;在碱性条件下,采用循环伏安法测定了Pt/CAs催化剂电催化氧化甲醇的活性,结果表明,Pt/CAs显示出高的甲醇氧化催化活性,在1.0mol.L-1 NaOH和1.0mol.L-1 CH3OH溶液中,其峰电流密度是商品Vulcan XC-72R负载Pt催化剂Pt/C的3.9倍,甲醇起始氧化电位比Pt/C的负移约100mV.
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| 关 键 词： | 碳气凝胶 Pt/CAs催化剂 碱性介质 甲醇 电催化氧化 |
Electro-catalytic oxidation of methanol catalyzed by platinum/carbon aerogels in alkaline medium |
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| LIU Yong,YANG Hao,GAO Li,MAO Li-qun. Electro-catalytic oxidation of methanol catalyzed by platinum/carbon aerogels in alkaline medium[J]. Chemical Research, 2013, 0(4): 408-411 |
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| Authors: | LIU Yong YANG Hao GAO Li MAO Li-qun |
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| Affiliation: | (College of Chemistry and Chemical Engineering,Henan University,Kaifeng475004,Henan,China) |
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| Abstract: | Carbon aerogels（CAs）were prepared by sol-gel method in the presence of resorcinol and formaldehyde as the starting materials.As-obtained CAs was then adopted as supporters to prepare Pt/CAs catalyst by ethylene glycol reduction method.A cyclic voltammeter was used to measure the catalytic activity of Pt/CAs catalyst for the electro-catalytic oxidation of methanol in an alkaline medium.Results show that Pt/CAs electrocatalysts exhibit a high electrocatalytic activity for methanol oxidation.Namely,in the aqueous solutions of 1.0mol.L-1 NaOH and 1.0mol.L-1 CH3OH,the peak current density on Pt/CAs is 3.9times as much as that on commercial Vulcan XC-72Rcarbon supported Pt（Pt/C）electrocatalyst,and the starting oxidation potential of CH3OH on the former shifts negatively by about 100mV as compared with that on the latter. |
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| Keywords: | carbon aerogels Pt/CAs catalyst alkaline medium methanol electro-catalytic oxidation |
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