Enhancement of functional properties of PtPd nano catalyst in metal-polymer composite matrix: Application in direct ethanol fuel cell

被引：52

作者：

Datta, Jayati ^{[1
]}

Dutta, Abhijit ^{[1
]}

Biswas, Mukul ^{[2
]}

机构：

[1] Bengal Engn & Sci Univ, Dept Chem, Electrochem & Fuel Cell Lab, Howrah 711103, W Bengal, India

[2] Presidency Coll, Dept Chem, Kolkata, W Bengal, India

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2012年 / 20卷

关键词：

Ethanol electro-oxidation; Metal-polymer composite; Product analysis; Power density; OXIDATION;

D O I：

10.1016/j.elecom.2012.02.022

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This work reports improved electrode kinetics of ethanol oxidation on the conducting polymer composite matrix, poly-vinyl carbazole (PNVC) crossed linked with V2O5 and embedded with Pt-Pd nano crystallites. The metal incorporated polymer composite produces much higher current for ethanol electro-oxidation in alkaline medium compared to their carbon supported counterpart. The former also exhibits higher tolerance to CO-poisoning leading to a satisfactory level of ethanol conversion to the end products as estimated by chromatographic analysis. The structure and morphology of the catalysts surface were determined by SEM and XRD analysis. Various electrochemical techniques were employed to evaluate the kinetic parameters related to electro-oxidation of ethanol. Activation energy for the oxidation reaction is remarkably reduced, using the PNVC support, consistently throughout an extended potential region. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：56 / 59

页数：4

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