Highly Stable PEMFC Electrodes Based on Electrospun Antimony-Doped SnO2

被引：35

作者：

Cavaliere, Sara ^{[1
]}

Jimenez-Morales, Ignacio ^{[1
]}

Ercolano, Giorgio ^{[1
]}

Savych, Iuliia ^{[1
]}

Jones, Deborah ^{[1
]}

Roziere, Jacques ^{[1
]}

机构：

[1] Univ Montpellier, Inst Charles Gerhardt Montpellier, UMR UM CNRS 5253, Agregats Interfaces & Mat Energie, F-34095 Montpellier 5, France

来源：

CHEMELECTROCHEM | 2015年 / 2卷 / 12期

基金：

欧洲研究理事会;

关键词：

alternative supports; antimony tin oxide; electrospinning; fuel cells; PEMFC; TIN OXIDE NANOPARTICLE; OXYGEN REDUCTION; FUEL-CELLS; ELECTROCATALYTIC ACTIVITY; CARBON-FREE; SUPPORT MATERIALS; CATALYST SUPPORT; CATHODE CATALYST; PLATINUM; STABILITY;

D O I：

10.1002/celc.201500330

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

High durability and activity for the oxygen reduction reaction were demonstrated for oxide-supported platinum catalysts. The supports were antimony-doped SnO2 (ATO) fibres-in-tubes obtained by electrospinning and subsequent calcination. The doping with antimony instead of the already-reported niobium, allowed the preparation of tin oxide with electrical conductivity that was similar to carbon, which also had an increased electrocatalyst loading. Platinum nanoparticles supported on electrospun ATO demonstrated higher electrochemical stability and comparable mass activity to commercial Pt/C during exsitu potential cycling. The insitu fuel cell tests also revealed improved corrosion resistance with no noticeable degradation of the oxide-based membrane electrode assembly (MEA), but a slightly lower performance compared to the MEA with carbon-supported catalysts.

引用

页码：1966 / 1973

页数：8

共 61 条

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