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Open Access research with a European policy impact...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the European Policies Research Centre (EPRC).

EPRC is a leading institute in Europe for comparative research on public policy, with a particular focus on regional development policies. Spanning 30 European countries, EPRC research programmes have a strong emphasis on applied research and knowledge exchange, including the provision of policy advice to EU institutions and national and sub-national government authorities throughout Europe.

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Stable, easily sintered BaCe0.5Zr0.3Y0.16Zn0.04O3-delta electrolyte-based protonic ceramic membrane fuel cells with Ba0.5Sr0.5Zn0.2Fe0.8O3-delta perovskite cathode

Lin, Bin and Hu, Mingjun and Ma, Jianjun and Jiang, Yinzhu and Tao, Shanwen and Meng, Guangyao (2008) Stable, easily sintered BaCe0.5Zr0.3Y0.16Zn0.04O3-delta electrolyte-based protonic ceramic membrane fuel cells with Ba0.5Sr0.5Zn0.2Fe0.8O3-delta perovskite cathode. Journal of Power Sources, 183 (2). pp. 479-484. ISSN 0378-7753

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Abstract

A stable, easily sintered perovskite oxide BaCe0.5Zr0.3Y0.16Zn0.04O3-delta (BCZYZn) as an electrolyte for protonic ceramic mernbrane fuel cells (PCMFCs) with Ba0.5Sr0.5Zn0.2Fe0.8O3-delta (BSZF) perovskite cathode was investigated. The BCZYZn perovskite electrolyte synthesized by a modified Pechini method exhibited higher sinterability and reached 97.4% relative density at 1200 degrees C for 5 h in air, which is about 200 degrees C lower than that without Zn dopant. By fabricating thin membrane BCZYZn electrolyte (about 30 mu m in thickness) on NiO-BCZYZn anode support, PCMFCs were assembled and tested by selecting stable BSZF perovskite cathode. An open-circuit potential of 1.00V, a maximum power density of 236 mWcm(-2), and a low polarization resistance of the electrodes of 0.17 Omega cm(2) were achieved at 700 degrees C. This investigation indicated that proton conducting electrolyte BCZYZn with BSZF perovskite cathode is a promising material system for the next generation solid oxide fuel cells. (C) 2008 Elsevier B.V. All rights reserved.