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

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Date
08/09/2019
Author
Price, R.
Weissen, U.
Verbraeken, M. C.
Grolig, J. G.
Mai, A.
Irvine, J. T.S.
Funder
EPSRC
EPSRC
Grant ID
EP/M014304/1
ep/l017008/1
Keywords
QD Chemistry
TK Electrical engineering. Electronics Nuclear engineering
Engineering(all)
NDAS
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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.
Citation
Price , R , Weissen , U , Verbraeken , M C , Grolig , J G , Mai , A & Irvine , J T S 2019 , Recent advances in Rh/CGO co-impregnated La 0.20 Sr 0.25 Ca 0.45 TiO 3 anodes for solid oxide fuel cells : evaluation of upscaling and durability . in K Eguchi & S C Singhal (eds) , Solid Oxide Fuel Cells 16, SOFC XVI . ECS Transactions , no. 1 , vol. 91 , Electrochemical Society, Inc. , pp. 1741-1750 , 16th International Symposium on Solid Oxide Fuel Cells, SOFC XVI , Kyoto , Japan , 8/09/19 . https://doi.org/10.1149/09101.1741ecst
 
conference
 
Publication
Solid Oxide Fuel Cells 16, SOFC XVI
DOI
https://doi.org/10.1149/09101.1741ecst
ISSN
1938-6737
Type
Conference item
Rights
© 2019 ECS - The Electrochemical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1149/09101.1741ecst
Description
Funding: University of St Andrews and HEXIS AG; UK EPSRC grants: EP/M014304/1 “Tailoring of Microstructural Evolution in Impregnated SOFC Electrodes” and EP/L017008/1 “Capital for Great Technologies”.
Collections
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/18803

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