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Facile synthesis and electrochemical properties of MnO2/carbon nanotubes
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
2014-08-01
DOI10.1016/j.partic.2012.12.006
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
关键词[WOS]ELECTRICAL ENERGY-STORAGE ; PERFORMANCE ; ELECTRODES ; COMPOSITES ; SUPERCAPACITORS ; NANOWIRES ; OXIDATION ; BATTERIES ; MNO2
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.
语种英语
WOS记录号WOS:000340329500006
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/145702
专题中国科学院大连化学物理研究所
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
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GB/T 7714
Lv, Yang,Li, Huanqiao,Xie, Yan,et al. Facile synthesis and electrochemical properties of MnO2/carbon nanotubes[J]. PARTICUOLOGY,2014,15:34-38.
APA Lv, Yang.,Li, Huanqiao.,Xie, Yan.,Li, Shushuang.,Li, Jia.,...&Song, Yujiang.(2014).Facile synthesis and electrochemical properties of MnO2/carbon nanotubes.PARTICUOLOGY,15,34-38.
MLA Lv, Yang,et al."Facile synthesis and electrochemical properties of MnO2/carbon nanotubes".PARTICUOLOGY 15(2014):34-38.
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