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Fabrication of GdBaCo2O5+delta cathode using electrospun composite nanofibers and its improved electrochemical performance
Jiang, Xuening1; Xu, Hongxia1; Wang, Qian1; Jiang, Lei2; Li, Xiangnan1; Xu, Qiuli1; Shi, Yuchao1; Zhang, Qingyu1
KeywordSofc Cathode Electrospun Nanofibers Microstructure Electrochemical Performance
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
2013-04-25
DOI10.1016/j.jallcom.2013.01.015
Volume557Pages:184-189
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS KeywordOXIDE FUEL-CELLS ; EFFICIENT OXYGEN REDUCTION ; LAYERED PEROVSKITE ; LOW-TEMPERATURE ; STABILITY
AbstractGdBaCo2O5+delta (GBCO)/poly (vinyl pyrrolidone) (PVP) composite nanofibers were prepared by electrospinning. Structural and morphological evolution of the GBCO/PVP fibers under calcinations at various temperatures was studied. Using 600 degrees C pre-calcined GBCO/PVP composite nanofibers, pure phase GBCO cathode with homogeneous network structure was easily fabricated on Ce0.9Gd0.1O1.95 (GDC) electrolyte. The as-prepared GBCO cathode was characterized by electrochemical impedance spectra (EIS) measurements based on a GBCO/GDC/GBCO symmetric cell. Its electrochemical performance was compared with the cathode prepared with the GBCO powders synthesized with sol-gel method. The GBCO cathode fabricated using GBCO/PVP composite fibers had area specific resistances (ASRs) of 0.53 Omega cm(2) at 600 degrees C, 0.22 Omega cm(2) at 650 degrees C, 0.10 Omega cm(2) at 700 degrees C and 0.043 Omega cm(2) at 750 degrees C respectively, which are lower than ASR results of the GBCO cathode prepared with powders. The results have demonstrated that the GBCO cathode fabricated using electrospun composite nanofibers has significantly enhanced electrochemical activities for oxygen reduction reaction, and it can serve as a promising cathode material for intermediate- temperature solid oxide fuel cell. (c) 2013 Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000315185000030
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/137845
Collection中国科学院大连化学物理研究所
Affiliation1.Dalian Univ Technol, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Jiang, Xuening,Xu, Hongxia,Wang, Qian,et al. Fabrication of GdBaCo2O5+delta cathode using electrospun composite nanofibers and its improved electrochemical performance[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2013,557:184-189.
APA Jiang, Xuening.,Xu, Hongxia.,Wang, Qian.,Jiang, Lei.,Li, Xiangnan.,...&Zhang, Qingyu.(2013).Fabrication of GdBaCo2O5+delta cathode using electrospun composite nanofibers and its improved electrochemical performance.JOURNAL OF ALLOYS AND COMPOUNDS,557,184-189.
MLA Jiang, Xuening,et al."Fabrication of GdBaCo2O5+delta cathode using electrospun composite nanofibers and its improved electrochemical performance".JOURNAL OF ALLOYS AND COMPOUNDS 557(2013):184-189.
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