甘油在氧化物/钯复合催化剂上的电氧化研究

电化学（中英文） ›› 2006, Vol. 12 ›› Issue (4): 408-411.

甘油在氧化物/钯复合催化剂上的电氧化研究

严志远;徐常威;沈培康;

中山大学光电材料与技术国家重点实验室物理科学与工程技术学院,中山大学光电材料与技术国家重点实验室物理科学与工程技术学院,中山大学光电材料与技术国家重点实验室物理科学与工程技术学院广东广州510275,广东广州510275,广东广州510275

收稿日期:2006-11-28 修回日期:2006-11-28 出版日期:2006-11-28 发布日期:2006-11-28

Study of the Electrooxidation of Glycerol on Oxide and Pd/C Composite Catalysts

YAN Zhi-yuan,XU Chang-wei,SHEN Pei-kang~

(*)(State Key Laboratory of Optoelectronic Materials and Technologies,School of Physics and Engineering,Sun Yat-Sen University,Guangzhou 510275,Guangdong,China

Received:2006-11-28 Revised:2006-11-28 Published:2006-11-28 Online:2006-11-28

摘要/Abstract

摘要： 应用交替微波加热法制备碳载氧化物和Pd的复合催化剂,并以电化学方法研究这一新型催化剂在碱性条件下对甘油的氧化性能.实验表明,Pd/C催化剂对甘油的电化学氧化有较好活性,但氧化物复合的非铂催化剂对甘油的电化学氧化显示出更高的活性,相对于Pd/C催化剂,其氧化起始电位发生负移及峰电流大幅度提高.本工作还优化了氧化物与Pd的比例.结果证明,氧化物的加入使复合催化剂对甘油氧化产生了协同效应.

关键词: 甘油, 氧化物/Pd复合催化剂, 燃料电池

Abstract: Oxide and Pd on carbon composite catalysts have been prepared by intermittent microwave heating(IMH) method.The performance of the catalysts for glycerol oxidation in alkaline solution is studied by electrochemical techniques.It is shown that the Pd/C catalyst is active for glycerol electrooxidation.However,the oxide-Pd/C catalysts are even better in terms of the onset potential that is more negative and peak current density.The ratio of oxide to Pd is optimized according to the electrochemical measurement.The results reveal that the addition of oxide into the Pd/C induces the synergistic effect for glycerol electrooxidation.

Key words: Glycerol, Oxide/Pd composite catalyst

中图分类号:

TM911.4

严志远;徐常威;沈培康;. 甘油在氧化物/钯复合催化剂上的电氧化研究[J]. 电化学（中英文）, 2006, 12(4): 408-411.

YAN Zhi-yuan,XU Chang-wei,SHEN Pei-kang~. Study of the Electrooxidation of Glycerol on Oxide and Pd/C Composite Catalysts[J]. Journal of Electrochemistry, 2006, 12(4): 408-411.

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https://electrochem.xmu.edu.cn/CN/Y2006/V12/I4/408

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