高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (12): 2856.

• 研究论文 • 上一篇    下一篇

直接热分解法制备的碳载Pt\|Sn催化剂对乙醇氧化的电催化性能

马娟1, 孙瀚君2, 赵宏1, 唐亚文2,  陆天虹2, 郑军伟1   

  1. 1. 苏州大学化学电源研究所,    苏州  215006;
    2. 江苏省新型动力电池重点实验室,  江苏省生物功能材料重点实验室,  南京师范大学化学与材料学院, 南京 210097
  • 收稿日期:2011-02-28 修回日期:2011-04-20 出版日期:2011-12-10 发布日期:2011-11-25
  • 通讯作者: 郑军伟 E-mail:jwzheng@suda.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 20873065, 21073094)和江苏高校优势学科建设工程项目资助.

Electrocatalytic Performance of Carbon Supported Pt-Sn Catalyst Prepared with Direct Thermo-decomposition Method for Ethanol Oxidation

MA Juan1, SUN Han-Jun2, ZHAO Hong1, TANG Ya-Wen2, LU Tian-Hong2, ZHENG Jun-Wei1*   

  1. 1. Institute of Chemical Power Sources, Soochow  University, Suzhou 215006, China;
    2. Jiangsu Key Laboratory of New Power Batteries, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Material Science, Nanjing Normal University, Nanjing 210097, China
  • Received:2011-02-28 Revised:2011-04-20 Online:2011-12-10 Published:2011-11-25
  • Contact: ZHENG Jun-Wei E-mail:jwzheng@suda.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20873065, 21073094)和江苏高校优势学科建设工程项目资助.

摘要: 以Pt(NO3)2和SnO为前驱体采用直接热分解法制备了碳载Pt-Sn(Pt-Sn/C)催化剂. 用X射线衍射(XRD)、透射电镜(TEM)和X射线光电子能谱(XPS)等技术对催化剂进行了表征, 用循环伏安法和CO溶出等方法研究了催化剂对乙醇氧化的电催化性能. 结果表明, Pt-Sn/C催化剂中的Pt-Sn粒子具有Pt-Sn合金粒子外壳和SnOx粒子为核的核壳结构, 对乙醇氧化的电催化性能优于商业化的碳载Pt(Pt/C)催化剂.

关键词: 氧化亚锡; , 核壳结构; , 碳载铂锡催化剂, 直接乙醇燃料电池

Abstract: The Pt-Sn/C catalyst was synthesized with the direct Thermo-decomposition method using Pt(NO3)2 and SnO as the precusors. The Pt-Sn/C catalyst was characteristed with X-ray diffraction(XRD), transmission electron microscopy(TEM) and X-photoelectron spectroscopy(XPS). The electrocatalytic performance of the Pt-Sn/C catalyst was investigated with the cyclic voltammetry.  It was found that the Pt-Sn particles in the Pt-Sn/C catalyst prepared with this method possesses the shell-core structure with the Pt-Sn alloy particles as the shell and the SnOx particles as the core. The electrocatalytic performance of the Pt-Sn/C catalyst for the ethanol oxidation is better than that of the Pt/C catalyst. This preparetion method does not indroduce Cl-. Thus, the prepared catalyst needn't wash and does not induce the environmental pollution.  In addition, this preparation method is suitable for the production with the large scale.  Therefore, this preparation method is suitable for the practical application.

Key words: Stannous oxide, Shell-core structure, Carbon supported Pt-Sn catalyst, Direct ethanol fuel cell

中图分类号: 

TrendMD: