Pt/WC/TiO2催化剂的制备及其电催化性能研究

马淳安; 俞彬; 施梅勤; 郎小玲

doi:10.61558/2993-074X.2829

电化学 >

2011 , Vol. 17 >Issue 2: 149 - 154

DOI: https://doi.org/10.61558/2993-074X.2829

研究论文

Pt/WC/TiO2催化剂的制备及其电催化性能研究

马淳安 ,
俞彬 ,
施梅勤 ,
郎小玲

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浙江工业大学化材学院，绿色化学合成技术国家重点实验室培育基地，浙江杭州，310032

收稿日期: 2011-02-18

修回日期: 2011-03-11

网络出版日期: 2011-05-05

基金资助

浙江省国际科技合作重大专项(No. 2008C14040)，国际科技合作计划（2010DFB63680），浙江省自然科学基金重点项目（No. Z4100790）及浙江省教育厅科研项目(No. Y200908436)

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Preparation and Electrocatalytic Activity of the Pt/WC/TiO2 Composites

MA Chun-An ,
YU Bin ,
SHI Mei-Qin ,
LANG Xiao-Ling

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

Received date: 2011-02-18

Revised date: 2011-03-11

Online published: 2011-05-05

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摘要

以TiO2为载体制备了Pt/WC/TiO2三元复合催化剂，并由XRD、SEM和TEM等表征催化剂样品的形貌和结构特征.用循环伏安法测定了三元复合催化剂在酸性条件下对甲醇氧化的电催化性能，并将其与二元复合催化剂Pt/TiO2和Pt/WC的电催化性能进行比较.结果表明：三元复合催化剂具有更好的催化活性.进一步研究了二氧化钛晶相对Pt/WC/TiO2催化剂电催化活性的影响.

关键词： 二氧化钛; 碳化钨; 催化剂; 电催化性能; 晶相

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马淳安 , 俞彬 , 施梅勤 , 郎小玲 . Pt/WC/TiO2催化剂的制备及其电催化性能研究[J]. 电化学, 2011 , 17(2) : 149 -154 . DOI: 10.61558/2993-074X.2829

Abstract

TiO2 was used as the support for preparation of Pt/WC/TiO2 composite catalyst. The composites were characterized by XRD, SEM and TEM methods. The electrocatalytical activity of Pt/WC/TiO2 composite for oxidation of methanol was investigated by cyclic voltammetry. Pt/WC/TiO2 exhibited higher activity compared with that of Pt/TiO2 and Pt/WC composite catalysts. Based on this we discussed the effects of crystal phases of TiO2 on the electrocatalytical activity of Pt/WC/TiO2 composite catalyst.

Key words： titania; tungsten carbide; catalyst; electrocatalytic activity; crystal phase

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