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Research at St Andrews

Recent advances in Rh/CGO co-impregnated La0.20Sr0.25Ca0.45TiO3 anodes for solid oxide fuel cells: evaluation of upscaling and durability

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Author(s)

R. Price, U. Weissen, M. C. Verbraeken, J. G. Grolig, A. Mai, J. T.S. Irvine

School/Research organisations

Abstract

Recent research carried out at the University of St Andrews and HEXIS has focussed on a novel A-site deficient perovskite: La0.20Sr0.25Ca0.45TiO3 (LSCTA-) as a potential replacement material for the Ni-based cermet. LSCTA- is a mixed ionic and electronic conductor, which exhibits a high effective electrical conductivity for this class of limited conductivity perovskite, allowing a single-phase anode 'backbone' to be employed and removing the challenges associated with utilisation of a structural Ni phase. Co-impregnating this 'backbone' with a variety of transition/platinum group metals, as well as Ce0.80Gd0.20O1.90 (CG20), produces intricately nanostructured anode materials with high electrocatalytic activity for fuel oxidation. Here we provide an overview of the first 'all-oxide' SOFC stack test at HEXIS, as well as an in depth exploration of the 'powder-to-power' development of these co-impregnated LSCTA- anodes including: ceramic processing, catalyst selection, short-term testing, characterisation by AC impedance spectroscopy and durability testing of promising candidate catalyst systems.

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Details

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 16, SOFC XVI
EditorsK. Eguchi, S. C. Singhal
PublisherElectrochemical Society, Inc.
Pages1741-1750
Number of pages10
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 8 Sep 2019
Event16th International Symposium on Solid Oxide Fuel Cells, SOFC XVI - Kyoto, Japan
Duration: 8 Sep 201913 Sep 2019
Conference number: 16
http://www.eguchi-lab.ehcc.kyoto-u.ac.jp/SOFC_XVI/

Publication series

NameECS Transactions
Number1
Volume91
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference16th International Symposium on Solid Oxide Fuel Cells, SOFC XVI
Abbreviated titleSOFC
CountryJapan
CityKyoto
Period8/09/1913/09/19
Internet address

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