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Phase engineering of cobalt hydroxides using magnetic fields for enhanced supercapacitor performance

文献类型：期刊论文

作者Dai, Peng1; Yan, Taotao1; Hu, Lin2; Pang, Zhanwen1; Bao, Zhiwei1; Wu, Mingzai1; Li, Guang1; Fang, Jun2; Peng, Zhenmeng3
刊名JOURNAL OF MATERIALS CHEMISTRY A
出版日期2017-09-28
卷号5期号:36页码:19203-19209
DOI10.1039/c7ta03656f
文献子类Article
英文摘要We 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.
WOS关键词LITHIUM-ION BATTERIES ; HYDROTHERMAL SYNTHESIS ; ANODE MATERIAL ; ELECTROCHEMICAL PROPERTIES ; ELECTRODE MATERIALS ; PSEUDOCAPACITORS ; MORPHOLOGY ; NANOSHEETS ; NANOWIRES ; DIFFUSION
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science
语种英语
WOS记录号WOS:000411232100032
资助机构National Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; National Key R&D Program of China(2017YFA0403600) ; 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 ; National Natural Science Foundation of China(11374013 ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/33750]  
专题合肥物质科学研究院_中科院强磁场科学中心
作者单位1.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
推荐引用方式
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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来源：合肥物质科学研究院

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