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Application of infiltrated LSCM-GDC oxide anode in direct carbon/coal fuel cells
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dc.contributor.author | Yue, Xiangling | |
dc.contributor.author | Arenillas, Ana | |
dc.contributor.author | Irvine, John Thomas Sirr | |
dc.date.accessioned | 2017-02-25T00:32:31Z | |
dc.date.available | 2017-02-25T00:32:31Z | |
dc.date.issued | 2016-08-01 | |
dc.identifier | 241576949 | |
dc.identifier | 2cf58e10-3d69-4a5c-9212-6d21672e0f84 | |
dc.identifier | 84982165957 | |
dc.identifier | 000381495600016 | |
dc.identifier.citation | Yue , X , Arenillas , A & Irvine , J T S 2016 , ' Application of infiltrated LSCM-GDC oxide anode in direct carbon/coal fuel cells ' , Faraday Discussions , vol. 190 , pp. 269-289 . https://doi.org/10.1039/C6FD00001K | en |
dc.identifier.issn | 1359-6640 | |
dc.identifier.other | Bibtex: urn:0cd905bc84bc9550d954ea688e947a5e | |
dc.identifier.other | ORCID: /0000-0002-1986-9772/work/49052118 | |
dc.identifier.other | ORCID: /0000-0002-8394-3359/work/68280805 | |
dc.identifier.uri | https://hdl.handle.net/10023/10366 | |
dc.description | The authors would like to thank the European project ‘Efficient conversion of coal to electricity- Direct Coal Fuel Cells’, funded by the Research Fund for Coal & Steel (RFC-PR-10007). | en |
dc.description.abstract | Hybrid direct carbon/coal fuel cells (HDCFCs) utilise an anode based upon a molten carbonate salt with an oxide conducting solid electrolyte for direct carbon/coal conversion. They can be fuelled by a wide range of carbon sources, and offer higher potential chemical to electrical energy conversion efficiency and have the potential to decrease CO2 emissions compared to coal-fired power plants. In this study, the application of (La, Sr)(Cr, Mn)O3 (LSCM) and (Gd, Ce)O2 (GDC) oxide anodes was explored in a HDCFC system running with two different carbon fuels, an organic xerogel and a raw bituminous coal. The electrochemical performance of the HDCFC based on a 1–2 mm thick 8 mol% yttria stabilised zirconia (YSZ) electrolyte and the GDC–LSCM anode fabricated by wet impregnation procedures was characterized and discussed. The infiltrated oxide anode showed a significantly higher performance than the conventional Ni–YSZ anode, without suffering from impurity formation under HDCFC operation conditions. Total polarisation resistance (Rp) reached 0.8–0.9 Ω cm2 from DCFC with an oxide anode on xerogel and bituminous coal at 750 °C, with open circuit voltage (OCV) values in the range 1.1–1.2 V on both carbon forms. These indicated the potential application of LSCM–GDC oxide anode in HDCFCs. The chemical compatibility of LSCM/GDC with carbon/carbonate investigation revealed the emergence of an A2BO4 type oxide in place of an ABO3 perovskite structure in the LSCM in a reducing environment, due to Li attack as a result of intimate contact between the LSCM and Li2CO3, with GDC being stable under identical conditions. Such reaction between LSCM and Li2CO3 was not observed on a LSCM–YSZ pellet treated with Li–K carbonate in 5% H2/Ar at 700 °C, nor on a GDC–LSCM anode after HDCFC operation. The HDCFC durability tests of GDC–LSCM oxide on a xerogel and on raw bituminous coal were performed under potentiostatic operation at 0.7 V at 750 °C. The degradation mechanisms were addressed, especially on raw coal. | |
dc.format.extent | 21 | |
dc.format.extent | 2217121 | |
dc.language.iso | eng | |
dc.relation.ispartof | Faraday Discussions | en |
dc.subject | QD Chemistry | en |
dc.subject | NDAS | en |
dc.subject | BDC | en |
dc.subject.lcc | QD | en |
dc.title | Application of infiltrated LSCM-GDC oxide anode in direct carbon/coal fuel cells | en |
dc.type | Journal article | en |
dc.contributor.sponsor | European Commission | 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/C6FD00001K | |
dc.description.status | Peer reviewed | en |
dc.date.embargoedUntil | 2017-02-24 | |
dc.identifier.grantnumber | en |
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