Pt-Ru Catalysts Prepared by a Modified Polyol Process for Direct Methanol Fuel Cells

作     者：ZHANG Junmin ZHU Fangfang ZHANG Kunhua LIU Weiping GUAN Weiming ZHANG Junmin;ZHU Fangfang;ZHANG Kunhua;LIU Weiping;GUAN Weiming

作者机构：State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum MetalsKunming Institute of Precious MetalsKunming 650106China 

出 版 物：《贵金属》 (Precious Metals)

年 卷 期：2012年第33卷第A1期

页      面：222-226页

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

主　　题：PtRu/C catalysts modified polyol method direct methanol fuel cells(DMFCs) electrochemical performance 

摘      要：Supported PtRu/C catalysts used in direct methanol fuel cells (DMFCs) were prepared by a new modified polyol method. Transmission electron microscopy (TEM), X-ray diffraction (XRD) and cyclic voltammograms (CVs) were carried out to characterize the morphology, composition and the electrochemical properties of the PtRu/C catalyst. The results revealed that the PtRu nanoparticles with small average particle size (≈2.5 nm), and highly dispersed on the carbon support. The PtRu/C catalyst exhibited high catalytic activity and anti poisoned performance than that of the JM PtRu/C. It is imply that the modified polyol method is efficient for PtRu/C catalyst preparation.