CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Controllable synthesis of large-area free-standing amorphous carbon films and their potential application in supercapacitors
Zhu, DM; Liu, YH; Yuan, LL; Liu, Y; Li, XL; Yi, L; Wei, HL; Yao, KL; hlwei@hust.edu.cn
2014
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume4Issue:109Pages:63734—63740
AbstractA new and simple approach is proposed for the first time to fabricate free-standing amorphous carbon films (FS-ACFs) with controllable thickness by ambient pressure chemical vapor deposition (APCVD). The approach uses methane as the carbon source and Ni foil as the catalytic substrate, in which a large number of carbon atoms are trapped by controlling the experimental conditions during the APCVD growth process, and FS-ACFs are obtained by a simple corrosion of the Ni foil after APCVD growth. FS-ACFs having a uniform and continuous morphology with variable sizes over one hundred square centimeters and a controllable thickness of tens to hundreds of nanometers are synthesized by controlling the experimental conditions. Microstructure observations show that FS-ACFs have porous and transparent characteristics, which can be transferred or bent on different substrates, thus allowing for a variety of potential applications in electrochemistry. As a proof of concept, an electrochemical supercapacitor device directly assembled by using the FS-ACF exhibits an ultrashort time constant of 46 ms, a wide frequency range (similar to kHz) for capacitive feature, and a good capacitance performance with an area specific capacitance of 0.28 mF cm(-2) at a scan rate of 50 mV s(-1). Furthermore, the FS-ACF-based supercapacitor shows a high power density with a maximum volumetric power density of 17.76 W cm(-3).
KeywordUltrahigh-rate Supercapacitors Flexible Supercapacitors Energy-storage Thin-films Graphene Performance Nickel Surface Growth
Indexed BySCI
Language英语
WOS IDWOS:000345702900018
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/14054
Collection中科院上海应用物理研究所2011-2019年
Corresponding Authorhlwei@hust.edu.cn
Recommended Citation
GB/T 7714
Zhu, DM,Liu, YH,Yuan, LL,et al. Controllable synthesis of large-area free-standing amorphous carbon films and their potential application in supercapacitors[J]. RSC ADVANCES,2014,4(109):63734—63740.
APA Zhu, DM.,Liu, YH.,Yuan, LL.,Liu, Y.,Li, XL.,...&hlwei@hust.edu.cn.(2014).Controllable synthesis of large-area free-standing amorphous carbon films and their potential application in supercapacitors.RSC ADVANCES,4(109),63734—63740.
MLA Zhu, DM,et al."Controllable synthesis of large-area free-standing amorphous carbon films and their potential application in supercapacitors".RSC ADVANCES 4.109(2014):63734—63740.
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