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Title: Vapor-phase polymerized poly(3,4-ethylenedioxythiophene) on a nickel nanowire array film : aqueous symmetrical pseudocapacitors with superior performance
Authors: Xie, Qisen
Xu, Yang
Wang, Zhipeng
Xu, Chao
Zou, Peichao
Lin, Ziyin
Xu, Chenjie
Yang, Cheng
Kang, Feiyu
Wong, Ching-Ping
Keywords: DRNTU::Engineering::Chemical engineering
Issue Date: 2016
Source: Xie, Q., Xu, Y., Wang, Z., Xu, C., Zou, P., Lin, Z., . . . Wong, C.-P. (2016). Vapor-phase polymerized poly(3,4-ethylenedioxythiophene) on a nickel nanowire array film : aqueous symmetrical pseudocapacitors with superior performance. PLOS ONE, 11(11), e0166529-. doi:10.1371/journal.pone.0166529
Series/Report no.: PLOS ONE
Abstract: Three-dimensional (3D) nanometal scaffolds have gained considerable attention recently because of their promising application in high-performance supercapacitors compared with plain metal foils. Here, a highly oriented nickel (Ni) nanowire array (NNA) film was prepared via a simple magnetic-field-driven aqueous solution deposition process and then used as the electrode scaffold for the vapor-phase polymerization of 3,4-ethylenedioxythiophene (EDOT). Benefiting from the unique 3D open porous structure of the NNA that provided a highly conductive and oriented backbone for facile electron transfer and fast ion diffusion, the as-obtained poly(3,4-ethylenedioxythiophene) (PEDOT) exhibited an ultra-long cycle life (95.7% retention of specific capacitance after 20 000 charge/discharge cycles at 5 A/g) and superior capacitive performance. Furthermore, two electrodes were fabricated into an aqueous symmetric supercapacitor, which delivered a high energy density (30.38 Wh/kg at 529.49 W/kg) and superior long-term cycle ability (13.8% loss of capacity after 20 000 cycles). Based on these results, the vapor-phase polymerization of EDOT on metal nanowire array current collectors has great potential for use in supercapacitors with enhanced performance.
DOI: 10.1371/journal.pone.0166529
Rights: © 2016 Xie et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCBE Journal Articles

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