General Formation of MxCo3-xS4 (M=Ni, Mn, Zn) Hollow Tubular Structures for Hybrid Supercapacitors

Yu Ming Chen; Zhen Li; Xiong Wen Lou

doi:10.1002/anie.201504349

General Formation of M_xCo_3-xS₄ (M=Ni, Mn, Zn) Hollow Tubular Structures for Hybrid Supercapacitors

Yu Ming Chen
, Zhen Li
, Xiong Wen Lou

Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

278 Scopus citations

Abstract

A simple and versatile method for general synthesis of uniform one-dimensional (1D) M_xCo_3-xS₄ (M=Ni, Mn, Zn) hollow tubular structures (HTSs), using soft polymeric nanofibers as a template, is described. Fibrous core-shell polymer@M-Co acetate hydroxide precursors with a controllable molar ratio of M/Co are first prepared, followed by a sulfidation process to obtain core-shell polymer@M_xCo_3-xS₄ composite nanofibers. The as-made M_xCo_3-xS₄ HTSs have a high surface area and exhibit exceptional electrochemical performance as electrode materials for hybrid supercapacitors. For example, the MnCo₂S₄ HTS electrode can deliver specific capacitance of 1094 Fg^-1 at 10 Ag^-1, and the cycling stability is remarkable, with only about 6% loss over 20000 cycles.

Original language	English
Pages (from-to)	10521-10524
Number of pages	4
Journal	Angewandte Chemie - International Edition
Volume	54
Issue number	36
DOIs	https://doi.org/10.1002/anie.201504349
State	Published - 1 Sep 2015
Externally published	Yes

Keywords

mixed metal sulfides
nanotubes
polymeric template
supercapacitors

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10.1002/anie.201504349

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title = "General Formation of MxCo3-xS4 (M=Ni, Mn, Zn) Hollow Tubular Structures for Hybrid Supercapacitors",

abstract = "A simple and versatile method for general synthesis of uniform one-dimensional (1D) MxCo3-xS4 (M=Ni, Mn, Zn) hollow tubular structures (HTSs), using soft polymeric nanofibers as a template, is described. Fibrous core-shell polymer@M-Co acetate hydroxide precursors with a controllable molar ratio of M/Co are first prepared, followed by a sulfidation process to obtain core-shell polymer@MxCo3-xS4 composite nanofibers. The as-made MxCo3-xS4 HTSs have a high surface area and exhibit exceptional electrochemical performance as electrode materials for hybrid supercapacitors. For example, the MnCo2S4 HTS electrode can deliver specific capacitance of 1094 Fg-1 at 10 Ag-1, and the cycling stability is remarkable, with only about 6\% loss over 20000 cycles.",

keywords = "mixed metal sulfides, nanotubes, polymeric template, supercapacitors",

author = "Chen, \{Yu Ming\} and Zhen Li and Lou, \{Xiong Wen\}",

note = "Publisher Copyright: {\textcopyright} 2015 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim.",

year = "2015",

month = sep,

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doi = "10.1002/anie.201504349",

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AU - Chen, Yu Ming

AU - Li, Zhen

AU - Lou, Xiong Wen

PY - 2015/9/1

Y1 - 2015/9/1

N2 - A simple and versatile method for general synthesis of uniform one-dimensional (1D) MxCo3-xS4 (M=Ni, Mn, Zn) hollow tubular structures (HTSs), using soft polymeric nanofibers as a template, is described. Fibrous core-shell polymer@M-Co acetate hydroxide precursors with a controllable molar ratio of M/Co are first prepared, followed by a sulfidation process to obtain core-shell polymer@MxCo3-xS4 composite nanofibers. The as-made MxCo3-xS4 HTSs have a high surface area and exhibit exceptional electrochemical performance as electrode materials for hybrid supercapacitors. For example, the MnCo2S4 HTS electrode can deliver specific capacitance of 1094 Fg-1 at 10 Ag-1, and the cycling stability is remarkable, with only about 6% loss over 20000 cycles.

AB - A simple and versatile method for general synthesis of uniform one-dimensional (1D) MxCo3-xS4 (M=Ni, Mn, Zn) hollow tubular structures (HTSs), using soft polymeric nanofibers as a template, is described. Fibrous core-shell polymer@M-Co acetate hydroxide precursors with a controllable molar ratio of M/Co are first prepared, followed by a sulfidation process to obtain core-shell polymer@MxCo3-xS4 composite nanofibers. The as-made MxCo3-xS4 HTSs have a high surface area and exhibit exceptional electrochemical performance as electrode materials for hybrid supercapacitors. For example, the MnCo2S4 HTS electrode can deliver specific capacitance of 1094 Fg-1 at 10 Ag-1, and the cycling stability is remarkable, with only about 6% loss over 20000 cycles.

KW - mixed metal sulfides

KW - nanotubes

KW - polymeric template

KW - supercapacitors

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DO - 10.1002/anie.201504349

M3 - 文章

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JF - Angewandte Chemie - International Edition

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ER -

General Formation of M_xCo_3-xS₄ (M=Ni, Mn, Zn) Hollow Tubular Structures for Hybrid Supercapacitors

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Keywords

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