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High-performance SOFC based on a novel semiconductor-ionic SrFeO3-delta-Ce0.8Sm0.2O2-delta membrane
Jilin Univ, Coll Phys, Minist Educ, Key Lab Phys & Technol Adv Batteries, Changchun 130012, Jilin, Peoples R China.;Hubei Univ, Fac Phys & Elect Sci, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Wuhan 430062, Hubei, Peoples R China..
Hubei Univ, Fac Phys & Elect Sci, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Wuhan 430062, Hubei, Peoples R China..
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.ORCID iD: 0000-0002-3133-7031
Hubei Univ, Fac Phys & Elect Sci, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Wuhan 430062, Hubei, Peoples R China..
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2018 (English)In: International journal of hydrogen energy, ISSN 0360-3199, E-ISSN 1879-3487, Vol. 43, no 28, p. 12697-12704Article in journal (Refereed) Published
Abstract [en]

The semiconductor-ionic composite membrane has been recently developed for a novel solid oxide fuel cell (SOFC), i.e., the semiconductor-ion membrane fuel cell (SIMFC). In this work, the perovskite-type SrFeO3-delta (SFO) as semiconductor material was composited with ionic conductor Ce0.8Sm0.2O2-delta (SDC) to form the SFO-SDC composite membrane for SIMFCs. The SFO-SDC SIMFCs using the optimized weight ratio of 3:7 SFO-SDC membrane obtained the best performances, 780 mW cm(-2) at 550 degrees C, compared to 348 mW cm(-2) obtained from the pure SDC electrolyte fuel cell. Introduction of SFO into SDC can extend the triple phase boundary and provide more active sites for accelerating the fuel cell reactions, thus significantly enhanced the cell power output. Moreover, SFO was employed as the cathode, and a higher power output, 907 mW cm(-2) was achieved, suggesting that SFO cathode is more compatible for the SFO-SDC system in SIMFCs. This work provides an attractive strategy for the development of low temperature SOFCs.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 43, no 28, p. 12697-12704
Keywords [en]
Solid oxide fuel cell, Perovskite SrFeO3-delta, Ce0.8Sm0.2O2-delta, Triple phase boundary, Semiconductor-ionic membrane
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:kth:diva-240210DOI: 10.1016/j.ijhydene.2018.01.209ISI: 000439678700014Scopus ID: 2-s2.0-85045116560OAI: oai:DiVA.org:kth-240210DiVA, id: diva2:1277029
Conference
Forum of Hydrogen and Fuel Cells, DEC 11-13, 2017, Hubei Univ, Wuhan, PEOPLES R CHINA
Note

QC 20190109

Available from: 2019-01-09 Created: 2019-01-09 Last updated: 2019-08-20Bibliographically approved

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Xia, ChenZhu, Bin

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