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Phase engineering of cobalt hydroxides using magnetic fields for enhanced supercapacitor performance
Dai, Peng1; Yan, Taotao1; Hu, Lin2; Pang, Zhanwen1; Bao, Zhiwei1; Wu, Mingzai1; Li, Guang1; Fang, Jun2; Peng, Zhenmeng3
2017-09-28
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
Volume5Issue:36Pages:19203-19209
AbstractWe report on the selective synthesis of single crystal sheet-like alpha-Co(OH)(2) and raft-like nanostructures of beta-Co(OH)(2) hydrothermally using hydrazine as a reducing agent. alpha-Co(OH)(2) sheets of several micrometers in width and about 20 nm in thickness were reproducibly yielded in the presence of an applied strong magnetic field (2 tesla) at 180 degrees C. In the absence of a magnetic field, raft-like nanostructures were obtained, composed of rod-like beta-Co(OH)(2) with a length of about 1.5 mu m. The applied magnetic field was believed to provide a phase transition driving force and promote the phase transition from beta-Co(OH)(2) to alpha-Co(OH)(2). When evaluated as an electrode material for supercapacitors, the as-obtained sheet-like a-Co(OH)(2) exhibited higher capacitance and better cycling stability than beta-Co(OH)(2) prepared in the absence of a magnetic field.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Funding OrganizationNational Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; National Natural Science Foundation of China(11374013 ; National Natural Science Foundation of China(11374013 ; Outstanding young talent fund of Anhui Province(J05201424) ; Outstanding young talent fund of Anhui Province(J05201424) ; Research Fund for the Doctoral Program of Higher Education of China(20133401110002) ; Research Fund for the Doctoral Program of Higher Education of China(20133401110002) ; 51672001 ; 51672001 ; 51502002 ; 51502002 ; 21301178) ; 21301178) ; National Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; National Natural Science Foundation of China(11374013 ; National Natural Science Foundation of China(11374013 ; Outstanding young talent fund of Anhui Province(J05201424) ; Outstanding young talent fund of Anhui Province(J05201424) ; Research Fund for the Doctoral Program of Higher Education of China(20133401110002) ; Research Fund for the Doctoral Program of Higher Education of China(20133401110002) ; 51672001 ; 51672001 ; 51502002 ; 51502002 ; 21301178) ; 21301178)
DOI10.1039/c7ta03656f
WOS KeywordLITHIUM-ION BATTERIES ; HYDROTHERMAL SYNTHESIS ; ANODE MATERIAL ; ELECTROCHEMICAL PROPERTIES ; ELECTRODE MATERIALS ; PSEUDOCAPACITORS ; MORPHOLOGY ; NANOSHEETS ; NANOWIRES ; DIFFUSION
Indexed BySCI
Language英语
Funding OrganizationNational Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; National Natural Science Foundation of China(11374013 ; National Natural Science Foundation of China(11374013 ; Outstanding young talent fund of Anhui Province(J05201424) ; Outstanding young talent fund of Anhui Province(J05201424) ; Research Fund for the Doctoral Program of Higher Education of China(20133401110002) ; Research Fund for the Doctoral Program of Higher Education of China(20133401110002) ; 51672001 ; 51672001 ; 51502002 ; 51502002 ; 21301178) ; 21301178) ; National Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; National Natural Science Foundation of China(11374013 ; National Natural Science Foundation of China(11374013 ; Outstanding young talent fund of Anhui Province(J05201424) ; Outstanding young talent fund of Anhui Province(J05201424) ; Research Fund for the Doctoral Program of Higher Education of China(20133401110002) ; Research Fund for the Doctoral Program of Higher Education of China(20133401110002) ; 51672001 ; 51672001 ; 51502002 ; 51502002 ; 21301178) ; 21301178)
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000411232100032
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/33750
Collection中科院强磁场科学中心
Affiliation1.Anhui Univ, Sch Phys & Mat Sci, Hefei 230601, Anhui, Peoples R China
2.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Field Magnet Lab, Hefei 230031, Anhui, Peoples R China
3.Univ Akron, Dept Chem & Biomol Engn, Akron, OH 44325 USA
Recommended Citation
GB/T 7714
Dai, Peng,Yan, Taotao,Hu, Lin,et al. Phase engineering of cobalt hydroxides using magnetic fields for enhanced supercapacitor performance[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(36):19203-19209.
APA Dai, Peng.,Yan, Taotao.,Hu, Lin.,Pang, Zhanwen.,Bao, Zhiwei.,...&Peng, Zhenmeng.(2017).Phase engineering of cobalt hydroxides using magnetic fields for enhanced supercapacitor performance.JOURNAL OF MATERIALS CHEMISTRY A,5(36),19203-19209.
MLA Dai, Peng,et al."Phase engineering of cobalt hydroxides using magnetic fields for enhanced supercapacitor performance".JOURNAL OF MATERIALS CHEMISTRY A 5.36(2017):19203-19209.
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