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Ionic conductivity of infiltrated Ln (Ln = Gd, Sm, Y)-doped ceria

文献类型：期刊论文

作者Ju, Jiang-Wei1,2,3,4; Huan, Dao-Ming3,4; Zhang, Yan-Xiang5; Xia, Chang-Rong3,4; Cui, Guang-Lei1,2
刊名RARE METALS
出版日期2018-09-01
卷号37期号:9页码:734-742
关键词Doped ceria Infiltration Ionic conductivity Solid oxide fuel cell Nanoparticle
ISSN号1001-0521
DOI10.1007/s12598-018-1051-9
英文摘要This work studies the ionic conductivity of nanosized Gd-, Sm-, and Y-doped ceria prepared by the infiltration/impregnation method. The nanoparticles were deposited onto porous pure ceria substrates via infiltration-heating processes, and the conductivity was determined with the electrochemical impedance spectroscopy (EIS) using the conductive model for infiltrated phases. The conductivity of the infiltrated doped ceria changes with the doping amount, and Gd0.25Ce0.75O2-delta , Sm0.2Ce0.8O2-delta , and Y0.15Ce0.85O2-delta show the highest values of 2.56, 3.01, and 2.07 x 10(-3) S center dot cm(-1) at 600 A degrees C, respectively. Overall, Sm-doped samples show the highest conductivity, while Y-doped samples show the lowest conductivity. In consideration of the Bruggeman factor, the intrinsic conductivity of the infiltrated doped ceria was calculated. Compared with the bulk doped ceria, the intrinsic conductivity is higher while the activation energy is lower, which may suggest different conduction mechanisms. Besides, co-doping effects on the conductivity of the infiltrated sample are less obvious than those of the bulk sample.
WOS关键词OXIDE FUEL-CELLS ; IMPREGNATED NI ANODES ; SAMARIA-DOPED CERIA ; ELECTRICAL-PROPERTIES ; PERFORMANCE ; ELECTRODES ; CATHODES ; ELECTROLYTES ; SOFCS ; NANOPARTICLES
资助项目China Postdoctoral Science Foundation-Chinese Academy of Sciences (CPSF-CAS) Joint Foundation for Excellent Postdoctoral Fellows ; National Natural Science Foundation for Distinguished Young Scholars of China[51625204] ; National Nature Science Foundation of China[91645101]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000442243500002
出版者NONFERROUS METALS SOC CHINA
资助机构China Postdoctoral Science Foundation-Chinese Academy of Sciences (CPSF-CAS) Joint Foundation for Excellent Postdoctoral Fellows ; National Natural Science Foundation for Distinguished Young Scholars of China ; National Nature Science Foundation of China
源URL[http://ir.qibebt.ac.cn/handle/337004/12223]  
专题中国科学院青岛生物能源与过程研究所
通讯作者Cui, Guang-Lei
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao Ind Energy Storage Res Inst, Qingdao 266101, Peoples R China
2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao Key Lab Solar Energy Utilizat & Energy St, Qingdao 266101, Peoples R China
3.Univ Sci & Technol China, Dept Mat Sci & Engn, CAS Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China
4.Univ Sci & Technol China, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Hefei 230026, Anhui, Peoples R China
5.Harbin Inst Technol, Natl Key Lab Precis Hot Pressing Met, Sch Mat Sci & Engn, Harbin 150001, Heilongjiang, Peoples R China
推荐引用方式
GB/T 7714		 Ju, Jiang-Wei,Huan, Dao-Ming,Zhang, Yan-Xiang,et al. Ionic conductivity of infiltrated Ln (Ln = Gd, Sm, Y)-doped ceria[J]. RARE METALS,2018,37(9):734-742.
APA Ju, Jiang-Wei,Huan, Dao-Ming,Zhang, Yan-Xiang,Xia, Chang-Rong,&Cui, Guang-Lei.(2018).Ionic conductivity of infiltrated Ln (Ln = Gd, Sm, Y)-doped ceria.RARE METALS,37(9),734-742.
MLA Ju, Jiang-Wei,et al."Ionic conductivity of infiltrated Ln (Ln = Gd, Sm, Y)-doped ceria".RARE METALS 37.9(2018):734-742.

入库方式： OAI收割

来源：青岛生物能源与过程研究所

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