Journal
JOURNAL OF POWER SOURCES
Volume 328, Issue -, Pages 167-173Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2016.08.008
Keywords
Silver nanowires; Nickel hydroxide; Pseudocapacitor; Supercapacitors; Electrodeposition
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We present a novel one-dimensional coaxial architecture composed of silver nanowire (Ag NW) network core and nickel hydroxide (Ni(OH)(2)) shell for the realization of coaxial nanocomposite electrode materials for supercapacitors. Ag NWs are formed conductive networks via spray coating onto polyethylene terephthalate (PET) substrates and Ni(OH)(2) is gradually electrodeposited onto the Ag NW network to fabricate core-shell electrodes for supercapacitors. Synergy of highly conductive Ag NWs and high capacitive Ni(OH)(2) facilitate ion and electron transport, enhance electrochemical properties and result in a specific capacitance of 1165.2 F g(-1) at a current density of 3 A g(-1). After 3000 cycles, fabricated nanocomposite electrodes show 93% capacity retention. The rational design explored in this study points out the potential of nanowire based coaxial energy storage devices. (C) 2016 Elsevier B.V. All rights reserved.
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