Electrochemical deposition of porous VOx and MnO2 nanowires on stainless steel mesh for flexible supercapacitors

Authors

Shulei Chou, University of WollongongFollow
Jiazhao Wang, University of WollongongFollow
Hua-Kun Liu, University of WollongongFollow
S X. Dou, University of WollongongFollow

RIS ID

33345

Publication Details

Chou, S, Wang, J, Liu, HK, & Dou, SX (2010), Electrochemical deposition of porous VOx and MnO2 nanowires on stainless steel mesh for flexible supercapacitors, Advanced Science Letters, 3(3), pp. 295-298.

Abstract

Porous vanadium oxide (VO_x) and MnO₂ nanowires were synthesized by an electrochemical deposition method using stainless steel mesh as substrate. The as-prepared porous VO_x and MnO₂ nanowire films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Raman spectroscopy. The cyclic voltammetry (CV) results show that the MnO₂ nanowire film shows specific capacitance of 195, 170, 158, and 91 F g^-1 at scan rates of 5, 10, 20, and 50 mV s^-1, respectively. The porous VO_x film displays specific capacitance of 152, 124, 99, and 76 F g^-1 at scan rates of 5, 10, 20, and 50 mV s ^-1, respectively. The capacitance losses for the MnO2 nanowire film and the porous VO_x film are only 5% and 10% for 1000 cycles, respectively.