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Single-phase electronic-ionic conducting Sm3+/Pr3+/Nd3+ triple-doped ceria for new generation fuel cell technology
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
Hubei Univ, Fac Phys & Elect Sci, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Wuhan 430062, Hubei, Peoples R China.;COMSATS Inst Informat Technol, Dept Phys, Lahore 54000, Pakistan..
Michigan Technol Univ, Dept Mat Sci & Engn, 1400 Townsend Dr, Houghton, MI 49931 USA..
Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China.;Key Lab Liaoning Prov Recycling Sci Met Resources, Shenyang, Liaoning, 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. 12817-12824Article in journal (Refereed) Published
Abstract [en]

Co-doped CeO2 materials have exhibited promising potential for low temperature solid oxide fuel cell (LT-SOFC) applications. Sm3+, Pr3+ and Nd3+ triple-doped ceria has been synthesized via two-step wet chemical approach. First samarium doped ceria (SDC) was prepared and then the Pr3+/Nd3+ ions as doping elements (secondary process) was added. The structural structure was studied by X-ray diffraction (XRD), that indicate Sm3+, Prat and Nd3+ ions are doped into the ceria lattice up to the certain limit (Pr3+/Nd3+ 10 wt%). The impurity peaks are detected as doping contents increased above the certain limit (Pr3+/Nd3+ 20 wt %). In this work, further we investigated the effect increasing Pr3+/Nd3+ doping concentration on the performance of SOFC device. Here, we studied that high-concentration triple-doped ceria samples with mixed electrons/ions conductive property, as the semiconductor-ionic conducting layer, combined with commercial p-type semiconductor Ni0.8Co0.15Al0.05LiO2-delta (NCAL) to fabricate the 'sandwich' configuration for a developing fuel cell technology-electrolyte free fuel cells (EFFCs). This button size fuel cell delivered a maximum power output of 1011 mW cm(-2). The demonstrated findings show that the single-phase semiconductor-ionic material-Sm3+/Pr3+/Nd3+ triple-doped CeO2 can be selected potential candidate for the further development the EFFC technology.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 43, no 28, p. 12817-12824
Keywords [en]
LT-SOFCs, Sm3+/Pr3+/Nd3+ triple-doped CeO2, Mixed electronic-ionic conductivity, Semiconductor-ionic material, Electrolyte-free fuel cell technology
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:kth:diva-240214DOI: 10.1016/j.ijhydene.2018.04.125ISI: 000439678700029Scopus ID: 2-s2.0-85046664348OAI: oai:DiVA.org:kth-240214DiVA, id: diva2:1271201
Conference
Forum of Hydrogen and Fuel Cells, DEC 11-13, 2017, Hubei Univ, Wuhan, China
Note

QC 20181217

Available from: 2018-12-17 Created: 2018-12-17 Last updated: 2018-12-17Bibliographically approved

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