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Modification of the LSCM-GDC cathode to enhance performance for high temperature CO2 electrolysis via solid oxide electrolysis cells (SOECs)
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dc.contributor.author | Yue, Xiangling | |
dc.contributor.author | Irvine, John | |
dc.date.accessioned | 2018-03-13T00:33:10Z | |
dc.date.available | 2018-03-13T00:33:10Z | |
dc.date.issued | 2017-04-21 | |
dc.identifier | 249477604 | |
dc.identifier | c029bb11-05cf-4035-9b05-018b67ad522a | |
dc.identifier | 85017572515 | |
dc.identifier | 000398889600033 | |
dc.identifier.citation | Yue , X & Irvine , J 2017 , ' Modification of the LSCM-GDC cathode to enhance performance for high temperature CO 2 electrolysis via solid oxide electrolysis cells (SOECs) ' , Journal of Materials Chemistry A , vol. 5 , no. 15 , pp. 7081-7090 . https://doi.org/10.1039/C6TA09421J | en |
dc.identifier.issn | 2050-7488 | |
dc.identifier.other | Bibtex: urn:859019ce7bc4d62fa7552e3e115d498e | |
dc.identifier.other | ORCID: /0000-0002-1986-9772/work/49052121 | |
dc.identifier.other | ORCID: /0000-0002-8394-3359/work/68280848 | |
dc.identifier.uri | https://hdl.handle.net/10023/12924 | |
dc.description | This work was funded by Overseas Research Students Awards Scheme (ORSAS), University of St Andrews and by RCUK Energy Supergen programme on H-Delivery and EPSRC Platform and Senior fellowship programs (EP/G01244X/1). JTSI acknowledges the Wolfson Research Merit Award (WRMA 2012/R2). | en |
dc.description.abstract | Extensive efforts have been made to find new fuel electrode materials for solid oxide cells with high activity and durability to provide more robust materials than the state-of-the-art material, the Ni-cermet . In the present study, a Ni-free cathode is presented with competitive performance and higher durability than a well-behaved Ni-YSZ cermet for CO2 electrolysis via SOEC. A (La, Sr)(Cr, Mn)O3/(Gd, Ce)O2 (LSCM/GDC) cathode fabricated by vacuum infiltration of GDC nitrate solutions into a LSCM/YSZ (8 mol% yttria stabilised zirconia) skeleton is reported. A porous YSZ layer introduced between the dense electrolyte and this cathode helps to maintain a good cathode/electrolyte interface, whilst the nano-structured GDC phase introduced on the surface of LSCM/YSZ backbone is advantageous to boost the cathode electrochemical and catalytic properties towards CO2 reduction by SOEC. Vacuum impregnation therefore offers an effective means to modify the microstructure of LSCM/GDC material set used as cathode for high temperature CO2 electrolysis. With the doping of Pd co-catalyst after GDC impregnation, the cathode activity of the GDC impregnated LSCM material is further enhanced for high temperature CO2 electrolysis, and the 0.5wt% Pd and GDC co-impregnated LSCM cathode achieves an Rp value of 0.24 Ω cm2 at OCV at 900oC in CO2-CO 70-30 mixture, a comparable level to a high performance Ni-YSZ cathode operated in the identical conditions. | |
dc.format.extent | 10 | |
dc.format.extent | 2800920 | |
dc.language.iso | eng | |
dc.relation.ispartof | Journal of Materials Chemistry A | en |
dc.subject | QD Chemistry | en |
dc.subject | NDAS | en |
dc.subject | BDC | en |
dc.subject | R2C | en |
dc.subject.lcc | QD | en |
dc.title | Modification of the LSCM-GDC cathode to enhance performance for high temperature CO2 electrolysis via solid oxide electrolysis cells (SOECs) | en |
dc.type | Journal article | en |
dc.contributor.sponsor | The Royal Society | en |
dc.contributor.sponsor | EPSRC | en |
dc.contributor.sponsor | EPSRC | en |
dc.contributor.sponsor | EPSRC | en |
dc.contributor.institution | University of St Andrews. School of Chemistry | en |
dc.contributor.institution | University of St Andrews. EaSTCHEM | en |
dc.identifier.doi | 10.1039/C6TA09421J | |
dc.description.status | Peer reviewed | en |
dc.date.embargoedUntil | 2018-03-12 | |
dc.identifier.grantnumber | WRMA 2012/R2 | en |
dc.identifier.grantnumber | EP/G01244X/1 | en |
dc.identifier.grantnumber | EP/K015540/1 | en |
dc.identifier.grantnumber | EP/D07259X/1 | en |
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