期刊
ELECTROCHIMICA ACTA
卷 210, 期 -, 页码 367-374出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2016.05.027
关键词
hybrid surface morphologies; TiO2 nanotubes; electrochemical reduction; supercapacitors
资金
- KD program at University College of Southeast Norway, Norwegian Research Council-FRINATEK programme [231416/F20]
- EEA-Poland [237761]
- Norwegian PhD Network on Nanotechnology for Microsystems - Research Council of Norway, Division for Science [221860/F40]
In this paper, we report enhanced electrochemical capacitance of well-aligned TiO2 nanotube arrays with nanograss synthesized by electrochemical anodization. The conductivity of hybrid materials is improved by electrochemical reduction method, exhibiting an outstanding specific capacitance of 14.3 mF cm (2), which is 14 times larger than pristine ones. The specific capacitance further increases up to 20.5 mF cm (2), which is 43.4% higher than reduced ones with selectively retention of nanograss by ultrasonic treatment. We expect that the electrochemical-reduction approach and controllable morphology modification offer a potential path for developing high-performance energy storage devices. (C) 2016 Elsevier Ltd. All rights reserved.
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