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题名: Boron-doped alpha-Ni(OH)(2) nanoflowers with high specific surface area as electrochemical capacitor materials
作者: Yang, Jing-He1, 2;  Wang, Chao2;  Yang, Duo3;  Li, Xingyun4;  Shang, Peng1;  Li, Yamin1;  Ma, Ding2
关键词: Nanoparticles ;  Nanocomposites ;  Porous materials ;  Thin films
刊名: MATERIALS LETTERS
发表日期: 2014-08-01
DOI: 10.1016/j.matlet.2014.04.170
卷: 128, 页:380-383
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Materials Science, Multidisciplinary ;  Physics, Applied
研究领域[WOS]: Materials Science ;  Physics
英文摘要: The boron-doped alpha-Ni(OH)(2) nanoflowers (B-alpha-Ni(OH)(2)) with high specific surface area (400 m(2) g(-1)) were synthesized by the one pot liquid-phase method using P123 (EO20PO70EO20) as template and NaBH4 as alkali and boron sources. The size of the B-alpha-Ni(OH)(2) nanoflowers is about 300 nm and there are many porous. The 50 nm nanoplates are the basic structure units of nanoflowers and thickness of the nanosheets is approximately 5 nm. The content of B is about 15% among the Ni, B, O elements and boron exists mainly in the form of BO2-, which was confirmed by XPS characterization. B-alpha-Ni(OH)(2) nanoflowers exhibit a high specific capacitance of similar to 2296 F g(-1) at a charge and discharge current density of 3 A g(-1) with excellent cycling ability. The high specific capacitance and remarkable rate capability are promising for applications of B-alpha-Ni(OH)(2) nanostructures as advanced electrochemical capacitor materials with both high energy and cycling ability. (C) 2014 Elsevier B.V. All rights reserved.
关键词[WOS]: NICKEL-HYDROXIDE ;  PRECIPITATION ;  FILMS
语种: 英语
WOS记录号: WOS:000337876000098
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145455
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Henan Univ, Coll Chem & Chem Engn, Kaifeng 475004, Henan, Peoples R China
2.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
3.Henan Normal Univ, Fac Sci, Xinxiang 453007, Henan, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Yang, Jing-He,Wang, Chao,Yang, Duo,et al. Boron-doped alpha-Ni(OH)(2) nanoflowers with high specific surface area as electrochemical capacitor materials[J]. MATERIALS LETTERS,2014,128:380-383.
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