碱处理对PtRu/WC电极材料结构及甲醇电催化氧化性能的影响

doi:10.61558/2993-074X.2120

电化学（中英文） ›› 2013, Vol. 19 ›› Issue (4): 350-354. doi: 10.61558/2993-074X.2120

碱处理对PtRu/WC电极材料结构及甲醇电催化氧化性能的影响

郎小玲，施梅勤，江叶坤，马淳安^*

浙江工业大学化学工程与材料学院，绿色化学合成技术国家重点实验室培育基地，科技部能源材料及应用国际科技合作基地，浙江杭州 310032

收稿日期:2012-07-10 修回日期:2012-12-24 出版日期:2013-08-28 发布日期:2012-12-29
通讯作者: 马淳安 E-mail:science@zjut.edu.cn
基金资助:
国际科技合作计划（(No. 2010DFB63680）、浙江省重大科技专项国际合作项目(No. 2008C14040)、浙江省自然科学基金重点项目（No. Z4100790）及973项目(No. 2012CB722604)资助

Influence of Pretreatment on Electrocatalytic Property for Methanol Oxidation of PtRu/WC

LANG Xiao-ling, SHI Mei-qin, JIANG Ye-kun, MA Chun-an^*

State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032, China

Received:2012-07-10 Revised:2012-12-24 Published:2013-08-28 Online:2012-12-29
Contact: MA Chun-an E-mail:science@zjut.edu.cn

摘要/Abstract

摘要： 本文采用不同pH值的KOH溶液对WC材料进行了不同时间的碱处理，并以该WC为载体通过微波加热还原法制备PtRu/WC 复合材料. 采用XRD对材料进行结构表征，通过循环伏安法和计时电流法测试电极对甲醇的电催化氧化性能. 结果表明，经不同碱性条件处理的WC材料表面更易于铂钌的负载，其中经强碱（pH = 14）的KOH溶液处理后可在WC表面得到结晶度最好的铂钌合金，且所得电催化剂PtRu/WC电极的性能最佳，而经碱处理5 h的WC负载的PtRu/WC电极对甲醇氧化的效果最优.

关键词: 碱处理, PtRu, 碳化钨, 催化性能, 稳定性

Abstract: The surface of tungsten carbide (WC) was treated by potassium hydroxide (KOH) at different pH values for different time. The PtRu/WC composite was prepared by microwave-assisted polyol method. The phase structure of PtRu/WC composites were characterized by XRD. The electrocatalytic activity was tested by cyclic voltammetry and chronoamperometry. The results indicated that with different pH treatments WC became more readily supported on PtRu. When treating WC in KOH at pH = 14, PtRu exhibited the best degree of crystallinity on WC surface, leading to the highest electrocatalytic activity of PtRu/WC. Moreover, the optimized activity of PtRu/WC towards methanol oxidation was obtained by pretreating WC in KOH for 5 h.

Key words: pretreatment, PtRu, tungsten carbide, catalytic performance, stability

中图分类号:

O646

郎小玲, 施梅勤, 江叶坤, 马淳安. 碱处理对PtRu/WC电极材料结构及甲醇电催化氧化性能的影响[J]. 电化学（中英文）, 2013, 19(4): 350-354.

LANG Xiao-ling, SHI Mei-qin, JIANG Ye-kun, MA Chun-an. Influence of Pretreatment on Electrocatalytic Property for Methanol Oxidation of PtRu/WC[J]. Journal of Electrochemistry, 2013, 19(4): 350-354.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.61558/2993-074X.2120

https://electrochem.xmu.edu.cn/CN/Y2013/V19/I4/350

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碱处理对PtRu/WC电极材料结构及甲醇电催化氧化性能的影响

Influence of Pretreatment on Electrocatalytic Property for Methanol Oxidation of PtRu/WC

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