Cumming, D.J. orcid.org/0000-0003-1923-2250, Thompson, A.R. and Rothman, R.H. (2016) Nickel Impregnated Cerium-Doped Strontium Titanate Fuel Electrode: Direct Carbon Dioxide Electrolysis and Co-Electrolysis. Journal of The Electrochemical Society, 163 (11). F3057-F3061. ISSN 0013-4651
Abstract
Direct electrolysis of carbon dioxide and co-electrolysis of steam and carbon dioxide offers an efficient and effective method to produce CO or syngas and also utilizes CO2 in a carbon-neutral fuel cycle. Here we report the use of composite fuel electrode containing a Sr0.7Ce0.2TiO3±δ (SCT) and Sm0.20Ce0.80O2-δ (SDC) backbone which has been infiltrated with nickel nitrate and decomposed to form nickel surface decoration on the ceramic scaffold. Maximum cell current during electrolysis at 850◦C was 263 mAcm−2 and 192 mAcm−2 at 1.8V for co-electrolysis and CO2, respectively. The infiltrated nickel particles provided a large surface area and enhanced activity during electrolysis. These findings demonstrate that Ce-doped titanate mixed conductors combined with low volume nickel additions are promising next-generation electrode materials for solid oxide electrolysis cells.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Author(s) 2016. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. [DOI: 10.1149/2.0081611jes] All rights reserved. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Chemical and Biological Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 07 Jul 2016 08:55 |
Last Modified: | 18 Nov 2016 17:11 |
Published Version: | http://dx.doi.org/10.1149/2.0081611jes |
Status: | Published |
Publisher: | Electrochemical Society |
Refereed: | Yes |
Identification Number: | 10.1149/2.0081611jes |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:101491 |
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