VO2/TiO2 Nanosponges as Binder-Free Electrodes for High-Performance Supercapacitors

Chenchen Hu; Henghui Xu; Xiaoxiao Liu; Feng Zou; Long Qie; Yunhui Huang; Xianluo Hu

doi:10.1038/srep16012

VO2/TiO2 Nanosponges as Binder-Free Electrodes for High-Performance Supercapacitors

Sci Rep. 2015 Nov 4:5:16012. doi: 10.1038/srep16012.

Authors

Chenchen Hu¹, Henghui Xu¹, Xiaoxiao Liu¹, Feng Zou¹, Long Qie¹, Yunhui Huang¹, Xianluo Hu¹

Affiliation

¹ State Key Laboratory of Materials Processing and Die &Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.

Abstract

VO2/TiO2 nanosponges with easily tailored nanoarchitectures and composition were synthesized by electrostatic spray deposition as binder-free electrodes for supercapacitors. Benefiting from the unique interconnected pore network of the VO2/TiO2 electrodes and the synergistic effect of high-capacity VO2 and stable TiO2, the as-formed binder-free VO2/TiO2 electrode exhibits a high capacity of 86.2 mF cm(-2) (~548 F g(-1)) and satisfactory cyclability with 84.3% retention after 1000 cycles. This work offers an effective and facile strategy for fabricating additive-free composites as high-performance electrodes for supercapacitors.

Publication types

Research Support, Non-U.S. Gov't