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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 | Schools: | School of Materials Science & Engineering School of Physical and Mathematical Sciences |
Rights: | © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | MSE Journal Articles SPMS Journal Articles |
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