Pt-CeO2/C and Pt-Nb2O5/C as electrocatalysts for ethanol electro-oxidation

被引：0
|
作者：
Kepeniene, Virginija [1 ]
Tamasauskaite-Tamasiunaite, Loreta [1 ]
Vaiciuniene, Jurate [1 ]
Pakstas, Vidas [1 ]
Norkus, Eugenijus [1 ]
机构：
[1] Ctr Phys Sci & Technol, Dept Catalysis, A Gostauto St 9, LT-01108 Vilnius, Lithuania
来源：
CHEMIJA | 2016年 / 27卷 / 01期
关键词：
platinum; cerium(IV) oxide; niobium(V) oxide; electrocatalysts; ethanol electro-oxidation; ONE-POT SYNTHESIS; FUEL-CELL; METHANOL OXIDATION; RECENT PROGRESS; PERFORMANCE; CATALYST; NANOPARTICLES; STABILITY; GRAPHENE; SUPPORT;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The aim of this study was to investigate the activity of CeO2/C and Nb2O5/C/C supported platinum nanoparticles composites, prepared by the rapid microwave synthesis method, towards the oxidation of ethanol in an alkaline medium. The electrocatalytic activity of the Pt-CeO2/C and Pt-Nb2O5/C catalysts with respect to the electro-oxidation of ethanol was investigated by means of cyclic voltammetry. The electrochemical behaviour of the synthesized catalysts towards the oxidation of ethanol was compared with that of a carbon supported bare Pt catalyst. X-ray Diffraction and Transmission Electron Microscopy were used to determine the structure, shape and the size of cata-lysts particles. Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) was employed to determine the composition of the synthesized catalysts. It has been found that the both investigated Pt-CeO2/C and Pt-Nb2O5/C catalysts show a higher activity towards the electro-oxidation of ethanol when compared with that of the Pt/C catalyst, the Pt- Nb2O5/C/C catalyst being most active.
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页码：31 / 36
页数：6
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