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author:

Zhu, J.-Q. (Zhu, J.-Q..) [1] | Wang, X. (Wang, X..) [2] | Lu, H.-D. (Lu, H.-D..) [3] | Shao, Y.-Q. (Shao, Y.-Q..) [4] | Zhang, T. (Zhang, T..) [5] | Tang, D. (Tang, D..) [6]

Indexed by:

Scopus PKU CSCD

Abstract:

A amorphous/crystal mixed structural 36% RuO 2-64% Ta 2O 5 coating was deposited on titanium substrate from ethanol ruthenium and tantalum chloride solution, using the thermal decomposition method at 300°C.Structure and electrochemical capacitive properties of the coating were investigated by means of X-ray diffraction(XRD), scanning electron microscopy(SEM), cyclic voltammetry(CV) and galvanostatic charge-discharge tests. The XRD results reveal the 36% RuO 2-64% Ta 2O 5 coating presents amorphous structure with some nano-size crystallites in the amorphous matrix. The electrochemical analysis shows that the Ti/36% RuO 2-64% Ta 2O 5 electrode exhibits typical capacitive characteristics and good power characteristics in 0.5 mol/L H 2SO 4 electrolyte. Its specific capacitance as single electrode is up to 525.5 and 495.1 F/g(RuO 2) at a discharge current of 5 and 10 mA/cm 2, respectively. Excellent cycling behavior is observed for this coating, with no loss in specific capacitance during 2000 cycles.

Keyword:

Cyclic voltammetry; Electrochemical capacitor; Thermal decomposition method; Ti/36% RuO 2-64% Ta 2O 5

Community:

  • [ 1 ] [Zhu, J.-Q.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
  • [ 2 ] [Wang, X.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
  • [ 3 ] [Lu, H.-D.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
  • [ 4 ] [Shao, Y.-Q.]College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
  • [ 5 ] [Zhang, T.]Institute for Materials Research, Fuzhou University, Fuzhou 350108, China
  • [ 6 ] [Tang, D.]Institute for Materials Research, Fuzhou University, Fuzhou 350108, China

Reprint 's Address:

  • [Tang, D.]Institute for Materials Research, Fuzhou University, Fuzhou 350108, China

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Source :

Transactions of Materials and Heat Treatment

ISSN: 1009-6264

Year: 2012

Issue: 7

Volume: 33

Page: 122-126

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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