Evaluation of Activity of Platinum-Ruthenium-Cobalt/Graphene Catalysts towards Methanol Oxidation

被引：7
作者：
Semasko, M. [1 ]
Tamasauskaite-Tamasiunaite, L. [1 ]
Kepeniene, V. [1 ]
Balciunaite, A. [1 ]
Vaiciuniene, J. [1 ]
Drabavicius, A. [1 ]
Norkus, E. [1 ]
机构：
[1] Ctr Phys Sci & Technol, Dept Catalysis, LT-01108 Vilnius, Lithuania
来源：
LOW-TEMPERATURE FUEL CELLS, ELECTROLYZERS, AND REDOX FLOW CELLS | 2015年 / 68卷 / 03期
关键词：
OXYGEN REDUCTION REACTION; ONE-POT SYNTHESIS; FUEL-CELL; PT-CO; ELECTROCHEMICAL PERFORMANCE; SUPPORTED PLATINUM; CARBON; NANOPARTICLES; ELECTROOXIDATION; GRAPHENE;
D O I：
10.1149/06803.0055ecst
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this study a series of PtRuCo/GR with the different molar ratios were prepared by microwave-assisted heating of the reaction mixture consisting of H2PtCl6, RuCl3, CoCl2 and ethylene glycol. The Transmission Electron Microscopy and Inductively Coupled Plasma Optical Emission Spectroscopy were employed to characterize the synthesized PtRuCo/GR catalysts. The electrocatalytic activity of the synthesized catalysts towards the oxidation of methanol was investigated by means of cyclic voltammetry and chronoamperometry. It was found that the PtRuCo/GR catalysts with the Pt:Ru:Co molar ratios equal to 1:2:2, 1: 1.7:5.6 and 3.5:1:23 were prepared. The PtRuCo/GR catalyst with the Pt: Ru: Co molar ratio equal to 3.5:1:23 has a higher electrocatalytic activity towards the oxidation of methanol in acidic medium as compared with that of other synthesized catalysts.
引用
收藏
页码：55 / 62
页数：8
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