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The Structure-Property Investigation of Bi1-xCexFeO3 (x=0, 0.05)-Li Battery: In Situ XRD and XANES Studies
Zhang, XM(张新民); Gao, M(高梅); Gu, YL(顾月良); Bao, HL(鲍洪亮); Li, XL(李小龙); Zhou, XT(周兴泰); Wen, W(文闻)
2012
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
ISSN1932-7447
Volume116Issue:38
AbstractBiFeO3 and Bi0.95Ce0.05FeO3 were synthesized via a coprecipitation technique. During the synthesis process, the phase transitions were monitored via in situ synchrotron X-ray diffraction (XRD). The Ce addition increased the formation temperature of BiFeO3 phase, while greatly suppressed the particle size growth. Ce0.05Bi0.95FeO3 was further employed for lithium battery application, and good electrochemical cycling performance was observed between 1.15 and 3.0 V. Ce addition not only increased the discharge capacity but also displayed 0.15 V higher discharge voltage (in the second cycle), compared with BiFeO3. After 2 Li ions insertion, Bi ions are reduced to metallic Bi and separated out of the perovskite lattice. In the following charge process, metallic Bi can be oxidized back to its ionic state. Elevated discharge voltage was observed in the second discharge process. a/b-axis lattice parameters are mainly changed by Li intercalation/deintercalation, and c-axis lattice parameters are heavily affected by the ionic species in the c-axis. There are two distinct conduction pathways: one is the ionic conduction along the a/b-plane, and the other is the electronic conduction along the c-axis.
Language英语
Funding Project应物所项目组
WOS IDWOS:000309150200014
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13323
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Zhang, XM,Gao, M,Gu, YL,et al. The Structure-Property Investigation of Bi1-xCexFeO3 (x=0, 0.05)-Li Battery: In Situ XRD and XANES Studies[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2012,116(38).
APA Zhang, XM.,Gao, M.,Gu, YL.,Bao, HL.,Li, XL.,...&Wen, W.(2012).The Structure-Property Investigation of Bi1-xCexFeO3 (x=0, 0.05)-Li Battery: In Situ XRD and XANES Studies.JOURNAL OF PHYSICAL CHEMISTRY C,116(38).
MLA Zhang, XM,et al."The Structure-Property Investigation of Bi1-xCexFeO3 (x=0, 0.05)-Li Battery: In Situ XRD and XANES Studies".JOURNAL OF PHYSICAL CHEMISTRY C 116.38(2012).
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