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Facile synthesis of high surface area hedgehog-like CuO microspheres with improved lithium storage properties
Zhang, Zailei; Chen, Han; Che, Hongwei; Wang, Yanghong; Su, Fabing
2013-03-15
Source PublicationMATERIALS CHEMISTRY AND PHYSICS
Volume138Issue:2-3Pages:593-600
AbstractWe report the preparation of high surface area hedgehog-like CuO microspheres by a wet-chemical method and their application in Li-ion batteries used as anode materials. The samples were characterized by Nitrogen adsorption, X-ray diffraction, scanning electron microscopy, transmission electron microscopy, temperature-programmed reduction and thermogravimetric analysis. The synthesized hedgehog-like CuO microspheres with a size of 1-3 um possessed a high surface area of 103.5 -157.4 m(2) g(-1) and an average crystal size of 7-9 nm. When used as anode materials, they showed an initial discharge and charge capacity of 1294.6 and 647.6 mAh g(-1), respectively, much higher than the corresponding values of the low surface area CuO microspheres, which are 967.1 and 382.6 mAh g(-1) respectively. After calcination at 300 and 600 degrees C, the morphology of hedgehog-like CuO microspheres was still maintained, and a high capacity of 570-590 mAh g(-1) at 0.1 C was observed after 50 cycles. Meanwhile, the average capacity fading rates for calcined hedgehog-like CuO microspheres were much lower than that of non-calcined and low surface area CuO microspheres, demonstrating that the calcination of CuO microspheres with the high surface area leads to a better cycling performance. This work provides a new method to prepare high surface area CuO materials, which are promising anode materials with high capacity and long cycling life in Li-ion batteries. (C) 2012 Elsevier B.V. All rights reserved.
KeywordNanostructure Oxide Annealing Electron Microscopy Electrochemical Properties
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
Language英语
WOS KeywordION BATTERIES ; ANODE MATERIAL ; ELECTROCHEMICAL PROPERTIES ; ELECTRODE MATERIALS ; SPRAY-PYROLYSIS ; NANOSTRUCTURES ; PERFORMANCE ; CO3O4 ; TEMPERATURE ; SIZE
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000316580000026
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13750
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Zailei,Chen, Han,Che, Hongwei,et al. Facile synthesis of high surface area hedgehog-like CuO microspheres with improved lithium storage properties[J]. MATERIALS CHEMISTRY AND PHYSICS,2013,138(2-3):593-600.
APA Zhang, Zailei,Chen, Han,Che, Hongwei,Wang, Yanghong,&Su, Fabing.(2013).Facile synthesis of high surface area hedgehog-like CuO microspheres with improved lithium storage properties.MATERIALS CHEMISTRY AND PHYSICS,138(2-3),593-600.
MLA Zhang, Zailei,et al."Facile synthesis of high surface area hedgehog-like CuO microspheres with improved lithium storage properties".MATERIALS CHEMISTRY AND PHYSICS 138.2-3(2013):593-600.
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