| Pt/C催化剂对乙醇电氧化的粒径效应 |
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| 引用本文： | 唐亚文,马国仙,周益明,包建春,陆路德,陆天虹. Pt/C催化剂对乙醇电氧化的粒径效应[J]. 物理化学学报, 2008, 24(9): 1615-1619. DOI: 10.3866/PKU.WHXB20080915 |
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| 作者姓名： | 唐亚文 马国仙 周益明 包建春 陆路德 陆天虹 |
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| 作者单位： | Laboratory of Materials Chemistry, Nanjing University of Science and Technology, Nanjing 210094, P. R. China; College of Chemistry and Environment Science, Nanjing Normal University, Nanjing 210097, P. R. China; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China |
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| 基金项目： | 国家高技术研究发展计划(863计划) ， 国家自然科学基金 ， 江苏省科技厅科研项目 ， 江苏省教育厅资助项目 |
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| 摘 要： | 利用有机溶胶方法, 通过控制溶剂挥发温度制备了具有不同粒径大小的Pt/C催化剂. 制得的Pt/C催化剂中, Pt粒子具有非常优异的均一性和良好的分散度. 电化学研究表明, 对于乙醇的电催化氧化, Pt/C催化剂存在着明显的粒径效应. 当Pt粒子粒径为3.2 nm时, Pt/C催化剂对乙醇的电催化氧化的质量比活性最佳. X射线光电子能谱(XPS)的研究显示, Pt/C催化剂对乙醇氧化的粒径效应与其零价Pt含量以及Pt粒子的比表面积密切相关.
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| 关 键 词： | 铂 催化剂 乙醇氧化 粒径效应 |
| 收稿时间： | 2008-02-13 |
| 修稿时间： | 2008-04-30 |
Electrocatalytic Oxidation of Ethanol on Pt/C Catalysts with Different Pt Particle Sizes |
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| TANG Ya-Wen,MA Guo-Xian,ZHOU Yi-Ming,BAO Jian-Chun,LU Lu-De,LU Tian-Hong. Electrocatalytic Oxidation of Ethanol on Pt/C Catalysts with Different Pt Particle Sizes[J]. Acta Physico-Chimica Sinica, 2008, 24(9): 1615-1619. DOI: 10.3866/PKU.WHXB20080915 |
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| Authors: | TANG Ya-Wen MA Guo-Xian ZHOU Yi-Ming BAO Jian-Chun LU Lu-De LU Tian-Hong |
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| Affiliation: | Laboratory of Materials Chemistry, Nanjing University of Science and Technology, Nanjing 210094, P. R. China; College of Chemistry and Environment Science, Nanjing Normal University, Nanjing 210097, P. R. China; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China |
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| Abstract: | Pt/C catalysts with different Pt particle sizes were prepared with the organic sol method. Pt particles in the Pt/C catalyst had high dispersity and excellent homogenicity. The electrochemical study indicated that there was an obvious size effect of Pt particles on the electrocatalytic oxidation of ethanol. The Pt/C catalyst with 3.2 nm average size of the Pt particles exhibited the optimal electrocatalytic activity for the ethanol oxidation. The study of X-ray photoelectron spectroscopy (XPS) showed that the size effect of Pt/Ccatalysts on the electrocatalytic oxidation of ethanol was closely related to the Pt0 content and the specific surface area of the Pt particles. |
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| Keywords: | Pt Catalyst Ethanol oxidation Particle size effect |
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