Ionic Liquid-Assisted Synthesis of a NiO/CNTs Composite and Its Electrochemical Capacitance
Chen, YT (Chen, Yitong); Lu, XJ (Lu, Xiangjun); Gao, B (Gao, Bo); Gao, B
2014
Source PublicationJOURNAL OF NANOMATERIALS
Volume2014Issue:12Pages:1-8
Abstract

A novel solid-state method has been developed for synthesizing nickel oxide (NiO)/carbon nanotubes (CNTs) composite using an ionic liquid (IL, 1-butyl-3-methylimidazolium chloride) as the reaction medium. Ultraviolet-visible (UV-vis) absorbance spectroscopy, infrared spectroscopy (IR), and scanning electron microscopy (SEM) were employed to investigate the structure, morphology, and formation mechanism of the synthesized sample. The results demonstrated that the IL is effective for dispersing CNTs, which allows the tethering of nickel (II) ions onto the surfaces of the CNTs and facilitates the subsequent chemical deposition of NiO to obtain the NiO/CNTs composite. The electrochemical properties of the composite were determined using cyclic voltammetry and galvanostatic charge/discharge measurements in 6 M KOH. Because of its unique structure, the prepared NiO/CNTs electrode exhibited good capacitive behavior and cyclability. The high specific capacitance (521 F g(-1)) and good rate capability (91% capacity retention at 0.5 Ag-1) of the NiO/CNTs composite enable its use as a practical supercapacitor electrode material.

DOI10.1155/2014/597974
Indexed BySCI
WOS IDWOS:000347329600001
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Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/5230
Collection中国科学院特殊环境功能材料与器件重点试验室
Corresponding AuthorGao, B
Affiliation1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China
2.Minist Ind & Informat Technol, Elect Res Inst 5, Elect Components Testing Ctr, Guangzhou 510610, Guangdong, Peoples R China
3.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Xinjiang Key Lab Elect Informat Mat & Devices, Key Lab Funct Mat & Devices Special Environm, Urumqi 830011, Xinjiang, Peoples R China
Recommended Citation
GB/T 7714
Chen, YT ,Lu, XJ ,Gao, B ,et al. Ionic Liquid-Assisted Synthesis of a NiO/CNTs Composite and Its Electrochemical Capacitance[J]. JOURNAL OF NANOMATERIALS,2014,2014(12):1-8.
APA Chen, YT ,Lu, XJ ,Gao, B ,&Gao, B.(2014).Ionic Liquid-Assisted Synthesis of a NiO/CNTs Composite and Its Electrochemical Capacitance.JOURNAL OF NANOMATERIALS,2014(12),1-8.
MLA Chen, YT ,et al."Ionic Liquid-Assisted Synthesis of a NiO/CNTs Composite and Its Electrochemical Capacitance".JOURNAL OF NANOMATERIALS 2014.12(2014):1-8.
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