Projects per year
Abstract
Different layered perovskite-related oxides are known to exhibit important electronic, magnetic and electrochemical properties. Owing to their excellent mixed-ionic and electronic conductivity and fast oxygen kinetics, cation layered double perovskite oxides such as PrBaCo2O5 in particular have exhibited excellent properties as solid oxide fuel cell oxygen electrodes1. Here, we show for the first time that related layered materials can be used as high-performance fuel electrodes. Good redox stability with tolerance to coking and sulphur contamination from hydrocarbon fuels is demonstrated for the layered perovskite anode PrBaMn2O5+δ (PBMO). The PBMO anode is fabricated by in situ annealing of Pr0.5Ba0.5MnO3−δ in fuel conditions and actual fuel cell operation is demonstrated. At 800 °C, layered PBMO shows high electrical conductivity of 8.16 S cm−1 in 5% H2 and demonstrates peak power densities of 1.7 and 1.3 W cm−2 at 850 °C using humidified hydrogen and propane fuels, respectively.
Original language | English |
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Pages (from-to) | 205-206 |
Journal | Nature Materials |
Volume | 14 |
Issue number | 2 |
Early online date | 22 Dec 2014 |
DOIs | |
Publication status | Published - Feb 2015 |
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Dive into the research topics of 'Layered oxygen-deficient double perovskite as an efficient and stable anode for direct hydrocarbon solid oxide fuel cells'. Together they form a unique fingerprint.Projects
- 4 Finished
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Energy Materials Discovery: Energy Materials Discovery Characterisation and Application
Irvine, J. T. S. (PI), Cassidy, M. (CoI), Connor, P. A. (CoI), Savaniu, C. D. (CoI) & Zhou, W. (CoI)
7/01/13 → 6/01/18
Project: Standard
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Royal Society Wolfson Merit Award: Closing the Carbon Cycle with Solid State Electrochemistry
Irvine, J. T. S. (PI)
1/08/12 → 31/07/17
Project: Standard
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Crossing Boundaries in Energy Storage: Crossing Boundaries in Energy Storage
Bruce, FRS, P. (PI)
1/08/11 → 31/07/15
Project: Standard