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Y2Mo3O12–Ba0.5Sr0.5...
Y2Mo3O12–Ba0.5Sr0.5Co0.8Fe0.2O3-δ cathode catalyst for proton-conducting solid oxide fuel cells
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- Lin, Peiyi (författare)
- University of South China
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- Xu, Xi (författare)
- Imperial College London
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- Yu, Shoufu (författare)
- University of South China
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- Yin, Yanru (författare)
- University of South China
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- Andersson, Martin (författare)
- Lund University,Lunds universitet,Värmeöverföring,Institutionen för energivetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,LTH profilområde: Energiomställningen,LTH profilområden,Heat Transfer,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: The Energy Transition,LTH Profile areas,Faculty of Engineering, LTH
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- Bi, Lei (författare)
- University of South China
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(creator_code:org_t)
- Elsevier BV, 2022
- 2022
- Engelska.
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Ingår i: Journal of Power Sources. - : Elsevier BV. - 0378-7753. ; 551
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The mismatch of the coefficients of thermal expansion between cathode and electrolyte is one of the thorniest problems for high-performance proton-conducting solid oxide fuel cells (H–SOFCs). Here one strategy is applied by introducing the negative thermal expansion component, Y2Mo3O12 (YMO), on Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) cathode to overcome this difficulty. As a result, not only the electrolyte-cathode connection but also the cell performance is improved. The maximum power density of the cell using a composite cathode reaches 1010.9 mW cm−2 at 700 °C. The YMO softens the stress on the contact layer that keeps the cathode from delamination, which is confirmed by simulation studies and experiments. Furthermore, the A-site defect on BSCF created by the reaction between YMO and BSCF also plays a positive role in the oxygen reduction reaction (ORR) activity. This study provided a new way to study and improve the thermo-mechanical stability and cell performance of H–SOFCs.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
Nyckelord
- BaSrCoFeO
- Cathode catalyst
- Proton-conductor
- SOFC
- Thermal expansion
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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