Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/102772
Title: Synthesis of free-standing metal sulfide nanoarrays via anion exchange reaction and their electrochemical energy storage application
Authors: Xia, Xinhui
Zhu, Changrong
Luo, Jingshan
Zeng, Zhiyuan
Guan, Cao
Ng, Chin Fan
Zhang, Hua
Fan, Hong Jin
Keywords: DRNTU::Engineering::Materials
Issue Date: 2013
Source: Xia, X., Zhu, C., Luo, J., Zeng, Z., Guan, C., Ng, C. F., et al. (2014). Synthesis of free-standing metal sulfide nanoarrays via anion exchange reaction and their electrochemical energy storage application. Small, 10(4), 766-773.
Series/Report no.: Small
Abstract: Metal sulfides are an emerging class of high-performance electrode materials for solar cells and electrochemical energy storage devices. Here, a facile and powerful method based on anion exchange reactions is reported to achieve metal sulfide nanoarrays through a topotactical transformation from their metal oxide and hydroxide pre-forms. Demonstrations are made to CoS and NiS nanowires, nanowalls, and core-branch nanotrees on carbon cloth and nickel foam substrates. The sulfide nanoarrays exhibit superior redox reactivity for electrochemical energy storage. The self-supported CoS nanowire arrays are tested as the pseudo-capacitor cathode, which demonstrate enhanced high-rate specific capacities and better cycle life as compared to the powder counterparts. The outstanding electrochemical properties of the sulfide nanoarrays are a consequence of the preservation of the nanoarray architecture and rigid connection with the current collector after the anion exchange reactions.
URI: https://hdl.handle.net/10356/102772
http://hdl.handle.net/10220/19109
ISSN: 1613-6810
DOI: 10.1002/smll.201302224
Rights: © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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