Cucumber-like V2O5/poly(3,4-ethylenedioxythiophene)&MnO2 nanowires with enhanced electrochemical cyclability.

Liqiang Mai, Fei Dong, Xu Xu, Yanzhu Luo, Qinyou An, Yunlong Zhao, Jie Pan, Jingnan Yang

Index: Nano Lett. 13(2) , 740-5, (2013)

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Abstract

Inspired by the cucumber-like structure, by combining the in situ chemical oxidative polymerization with facile soaking process, we designed the heterostructured nanomaterial with PEDOT as the shell and MnO(2) nanoparticles as the protuberance and synthesized the novel cucumber-like MnO(2) nanoparticles enriched vanadium pentoxide/poly(3,4-ethylenedioxythiophene) (PEDOT) coaxial nanowires. This heterostructured nanomaterial exhibits enhanced electrochemical cycling performance with the decreases of capacity fading during 200 cycles from 0.557 to 0.173% over V(2)O(5) nanowires at the current density of 100 mA/g. This method is proven to be an effective technique for improving the electrochemical cycling performance and stability of nanowire electrodes especially at low rate for application in rechargeable lithium batteries.