Silver modified cathode for a micro-tubular, single-chamber solid oxide fuel cell

被引：13

作者：

Akhtar, Naveed ^{[1
]}

Kendall, Kevin ^{[1
]}

机构：

[1] Univ Birmingham, Dept Chem Engn, Birmingham B15 2TT, W Midlands, England

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2011年 / 36卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

Solid oxide fuel cell; Single-chamber; Silver; Structural; Micro-tubular; ELECTROCHEMICAL PERFORMANCE; TEMPERATURE SOFCS; CERMET CATHODE; ELECTROLYTE;

D O I：

10.1016/j.ijhydene.2010.10.043

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Micro-tubular, solid oxide fuel cells consisting of nickel, yttria-stabilized zirconia (Ni-YSZ) anode, yttria-stabilized zirconia (YSZ) electrolyte and lanthanum strontium cobaltite ferrite-gadolinium doped ceria (LSCF-GDC) cathode have been developed and operated under single-chamber conditions, utilizing methane/air mixture. The cell performance was compared with a silver modified cathode by the addition of 10wt% silver-paste in LSCF-GDC cathode. The cells with and without silver addition yielded maximum power densities of 118.75 mW cm(-2) and 61.53 mW cm(-2) at 700 degrees C, respectively. The results demonstrate that silver is a good candidate for enhancing the oxidation reduction kinetics via improved adsorption, desorption, dissociation and subsequent diffusion. However, long term performance of the silver modified cathode is not guaranteed under single-chamber conditions. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.

引用

页码：773 / 778

页数：6

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