期刊
ELECTROCHIMICA ACTA
卷 215, 期 -, 页码 29-35出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2016.08.063
关键词
carbon nanofibers; supercapacitor; positron
资金
- National Natural Science Foundation of China [11175134, 51322210, 61434001]
- Foundation for the Author of National Excellent Doctoral Dissertation of PR China [201035]
- China Postdoctoral Science Foundation [2014M552033]
- Fundamental Research Funds for the Central Universities [HUST: 2012YQ025, 2013YQ049, 2013TS160]
- WNLO
Cross-linked carbon nanofiber (CLCNF) was successfully prepared by directly carbonizing electrospun polyacrylonitrile (PAN) nanofiber. Comparing to non-cross-linked carbon nanofiber (NCLCNF) obtained via carbonizing of pre-oxidation PAN nanofiber, CLCNF shows better conductivity owing to its crosslinked structure. Then CLCNF was used as scaffold to support polyaniline (PANi) nanorods for supercapacitor electrode material. The hierarchical CLCNF/PANi composite displays a capacity of 206C g(-1) at 0.5 A g(-1) with excellent rate capability (remains 49% even at 800 A g(-1)), which is much higher than that of NCLCNF/PANi composite (17%). More interestingly, supercapacitor device based on CLCNF/PANi composite achieves 75.3% capacity retention after 10000 charge-discharge cycles at 10 A g(-1), suggesting excellent cycle stability. All these experimental results indicate that this method for fabricating CLCNF is a substantial advancement towards the practical applications of carbon nanofiber in energy conversion and storage field. (C) 2016 Elsevier Ltd. All rights reserved.
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