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题名: Facile synthesis and electrochemical properties of MnO2/carbon nanotubes
作者: Lv, Yang1, 2;  Li, Huanqiao2;  Xie, Yan2;  Li, Shushuang2;  Li, Jia2, 3;  Xing, Yongheng1;  Song, Yujiang2
关键词: MnO2 ;  MWCNTs-OH ;  Supercapacitor ;  Non-noble metal electrocatalyst
刊名: PARTICUOLOGY
发表日期: 2014-08-01
DOI: 10.1016/j.partic.2012.12.006
卷: 15, 页:34-38
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Engineering, Chemical ;  Materials Science, Multidisciplinary
研究领域[WOS]: Engineering ;  Materials Science
英文摘要: The poor electrical conductivity of MnO2 limits its use as an electrode material. To overcome this limitation, we report an easy and rapid approach to deposit nanosized MnO2 onto multi-wall carbon nanotubes functionalized with hydroxyl groups (MWCNTs-OH) by chemical reduction of KMnO4 with MnSO4 in aqueous solution under ambient conditions. Characterization with XRD and TEM reveals that the obtained MnO2/MWCNTs-OH composite is nanocrystalline and partially covered by MnO2 nanosheets with a thickness of 1-3 nm at a MnO2 loading of 20 wt%. Cyclic voltammetry (CV) and galvanostatic charge-discharge measurements reveal that the MnO2/MWCNTs-OH composite with a MnO2 loading of 20 wt% has a relatively high specific capacitance of 234 F/g at a scan rate of 2 mV/s and exhibits good cycling stability. Furthermore, the oxygen reduction reaction (ORR) shows that MnO2/MWCNTs-OH composite may have potential applications as a non-noble metal electrocatalyst in fuel cells and metal-air batteries. (C) 2013 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
关键词[WOS]: ELECTRICAL ENERGY-STORAGE ;  PERFORMANCE ;  ELECTRODES ;  COMPOSITES ;  SUPERCAPACITORS ;  NANOWIRES ;  OXIDATION ;  BATTERIES ;  MNO2
语种: 英语
WOS记录号: WOS:000340329500006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145702
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.Liaoning Normal Univ, Coll Chem & Chem Engn, Dalian 116029, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Labs Clean Energy, Dalian 116023, Peoples R China
3.Dalian Univ Technol, Dalian 116024, Peoples R China

Recommended Citation:
Lv, Yang,Li, Huanqiao,Xie, Yan,et al. Facile synthesis and electrochemical properties of MnO2/carbon nanotubes[J]. PARTICUOLOGY,2014,15:34-38.
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