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2010 , Vol. 25 >Issue 4: 359 - 364

DOI: https://doi.org/10.3724/SP.J.1077.2010.00359

研究论文

微波合成条件对催化剂Pt2Mo/C的结构和甲醇氧化催化性能的影响

  • 曾 鑫 ,
  • 原鲜霞 ,
  • 夏晓芸 ,
  • 杜 娟 ,
  • 张慧娟 ,
  • 马紫峰
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  • 上海交通大学 化学工程系, 上海 200240

收稿日期: 2009-08-26

  修回日期: 2009-10-23

  网络出版日期: 2010-04-27

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Effects of Microwavesynthesizing Parameters on Structure and Electrocatalytic Activity of Pt2Mo/C towards Methanol Oxidation

  • ZENG Xin ,
  • YUAN Xian-Xia ,
  • XIA Xiao-Yun ,
  • DU Juan ,
  • ZHANG Hui-Juan ,
  • MA Zi-Feng
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  • Department of Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received date: 2009-08-26

  Revised date: 2009-10-23

  Online published: 2010-04-27

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摘要

为了改善Pt/C催化剂的甲醇氧化催化性能,采用快速高效的微波加热技术合成了Mo修饰的Pt基催化剂Pt2Mo/C,并对比研究了微波反应时间和超声分散时间等条件对Pt2Mo/C的晶体结构、微观形貌和甲醇氧化催化性能的影响. 结果表明:Pt2Mo/C的晶体结构主要是由微波反应时间决定的,超声分散时间对其几乎没有影响;Pt2Mo/C的微观形貌受微波反应时间和超声分散时间的共同影响. 在本实验的研究范围内,微波反应时间和超声分散时间对催化剂Pt2Mo/C的甲醇氧化催化性能的影响顺序分别为10min>15min>20min>5min和60min>100min>30min>0min;制备高活性甲醇氧化催化剂Pt2Mo/C的最佳条件为微波反应10min和超声分散60min.

关键词： 微波合成条件; Pt2Mo/C催化剂; 甲醇氧化

本文引用格式

曾 鑫 , 原鲜霞 , 夏晓芸 , 杜 娟 , 张慧娟 , 马紫峰 . 微波合成条件对催化剂Pt2Mo/C的结构和甲醇氧化催化性能的影响[J]. 无机材料学报, 2010 , 25(4) : 359 -364 . DOI: 10.3724/SP.J.1077.2010.00359

Abstract

Pt2Mo/C was prepared by microwavesynthesis to improve the catalytic performance of Ptbased catalysts towards methanol xidation. Effects of reaction and sonicating time on the crystal structure, micromorphology and electrocatalytic activity of Pt2Mo/C were systematically investigated. The results show that the crystal structure of Pt2Mo/C is mainly determined by the reaction time while the sonicating time has little influence on it. The micromorphology of Pt2Mo/C is determined by oth the reaction and sonicating time. The influencing sequences of reaction and sonicating time on electrocatalytic activity of Pt2Mo/C are 10min>15min>20min >5min and 60min>100min>30min>0min, respectively. The optimized parameters of preparing Pt2Mo/C owing best catalytic activity towards methanol electrooxidation are 10min of reaction time and 60min of sonicating time.

Key words： microwavesynthesizing parameters; Pt2Mo/C catalyst; methanol oxidation

参考文献

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