Ag nanowires and its application as electrode materials in electrochemical capacitor

被引:42
作者
Hu, Zhong-Ai [1 ]
Wang, Yao-Xian [1 ]
Xie, Yu-Long [1 ]
Yang, Yu-Ying [1 ]
Zhang, Zi-Yu [1 ]
Wu, Hong-Ying [1 ]
机构
[1] NW Normal Univ, Coll Chem & Chem Engn, Key Lab Polymer, Lanzhou 730070, Peoples R China
关键词
Ag nanowire; Anodic aluminum oxide film; Electrochemical capacitor; Specific capacitance; NICKEL-HYDROXIDE; SCALE; RUO2;
D O I
10.1007/s10800-009-0002-4
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Silver nanowires were synthesized on a large scale by using anodic aluminum oxide (AAO) film as templates and serving ethylene glycol as reductant. Their morphological and structural characterizations were characterized with field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and selected area electron diffraction (SAED). The electrochemical properties of silver nanowires as electrode materials for electrochemical capacitors were investigated by cyclic voltammetry (CV) and galvanostatic charge/discharge technique in 6 M KOH aqueous electrolyte. The Ag2O/Ag coaxial nanowires were formed by the incomplete electrochemical oxidation during the charge step. The maximum specific capacitance of 987 F g(-1) was obtained at a charge-discharge current density of 5 mA cm(-2).
引用
收藏
页码:341 / 344
页数:4
相关论文
共 22 条
[1]   New trends in electrochemical supercapacitors [J].
Arbizzani, C ;
Mastragostino, M ;
Soavi, F .
JOURNAL OF POWER SOURCES, 2001, 100 (1-2) :164-170
[2]   Nanostructured materials for advanced energy conversion and storage devices [J].
Aricò, AS ;
Bruce, P ;
Scrosati, B ;
Tarascon, JM ;
Van Schalkwijk, W .
NATURE MATERIALS, 2005, 4 (05) :366-377
[3]   TiO2(B) nanowires as an improved anode material for lithium-ion batteries containing LiFePO4 or LiNi0.5Mn1.5O4 cathodes and a polymer electrolyte [J].
Armstrong, Graham ;
Armstrong, A. Robert ;
Bruce, Peter G. ;
Reale, Priscilla ;
Scrosati, Bruno .
ADVANCED MATERIALS, 2006, 18 (19) :2597-+
[4]   Preparation of the novel nanocomposite Co(OH)2/ultra-stable Y zeolite and its application as a supercapacitor with high energy density [J].
Cao, L ;
Xu, F ;
Liang, YY ;
Li, HL .
ADVANCED MATERIALS, 2004, 16 (20) :1853-+
[5]   Electrochemically deposited polyaniline nanowire's network - A high-performance electrode material for redox supercapacitor [J].
Gupta, V ;
Miura, N .
ELECTROCHEMICAL AND SOLID STATE LETTERS, 2005, 8 (12) :A630-A632
[6]   Statically deposited nanostructured CoxNi1-x layered double hydroxides as electrode materials for redox-supercapacitors [J].
Gupta, Vinay ;
Gupta, Shubhra ;
Miura, Norio .
JOURNAL OF POWER SOURCES, 2008, 175 (01) :680-685
[7]   Design and tailoring of the nanotubular arrayed architecture of hydrous RuO2 for next generation supercapacitors [J].
Hu, Chi-Chang ;
Chang, Kuo-Hsin ;
Lin, Ming-Champ ;
Wu, Yung-Tai .
NANO LETTERS, 2006, 6 (12) :2690-2695
[8]   Large-scale synthesis of defect-free silver nanowires by electrodeless deposition [J].
Hu, Zhongai ;
Kong, Chao ;
Han, Yanxia ;
Zhao, Hongxiao ;
Yang, Yuying ;
Wu, Hongying .
MATERIALS LETTERS, 2007, 61 (18) :3931-3934
[9]   Nickel hydroxide/activated carbon composite electrodes for electrochemical capacitors [J].
Huang, Qinghua ;
Wang, Xianyou ;
Li, Jun ;
Dai, Chunling ;
Gamboa, Sergio ;
Sebastian, P. J. .
JOURNAL OF POWER SOURCES, 2007, 164 (01) :425-429
[10]   Electrochemical characterization of electrospun activated carbon nanofibres as an electrode in supercapacitors [J].
Kim, C .
JOURNAL OF POWER SOURCES, 2005, 142 (1-2) :382-388