Thiacalix[4]arene-supported tetradecanuclear cobalt nanocage cluster as precursor to synthesize CoO/Co9S8@CN composite for supercapacitor application

Cheng Shi, Mengwei Chen, Xu Han, Yanfeng Bi, Liangliang Huang, Kun Zhou, Zhiping Zheng

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A new tetradecanuclear cobalt cluster [Co14(TC4A)3Cl3(Tz)12(H2O)6](OH)(DMF)14(CH3OH)6(H2O)4 (Abbr. Co14, H4TC4A = p-tert-Butylthiacalix[4]arene, HTz = 1H-tetrazole) was obtained by the solvothermal reaction of CoCl2·6H2O, H4TC4A and Htz in DMF. The cluster featured the quadrilateral planar CoII4 units housing tri-capped trigonal Co12 clusters with two enclosed Co nanocages linked by Tz ligands. The uniform CoO/Co9S8@CN composite derived from direct annealing of Co14 clusters was obtained and characterized by XRD, EDS, XPS, and Raman spectra. The composite on nickel foam (CoO/Co9S8@CN/NF) was used as an electrode to fabricate supercapacitors with specific capacitances of 83.7% at 2 A g-1 and 70.0% at 5 A g-1 at 0.5 A g-1 (303.3 F g-1). The composite from Co14 precursor also shows high charge-discharge reversibility with a capacity retention of 96.3% and average columbic efficiency of 98.2% after 1000 cycles at 2.0 A g-1.

Original languageEnglish (US)
Pages (from-to)1329-1335
Number of pages7
JournalInorganic Chemistry Frontiers
Volume5
Issue number6
DOIs
StatePublished - Jun 1 2018

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Cobalt
Composite materials
Nickel
Foams
Raman scattering
Energy dispersive spectroscopy
Capacitance
X ray photoelectron spectroscopy
Annealing
Ligands
Electrodes
thiacalix(4)arene
Supercapacitor

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Thiacalix[4]arene-supported tetradecanuclear cobalt nanocage cluster as precursor to synthesize CoO/Co9S8@CN composite for supercapacitor application. / Shi, Cheng; Chen, Mengwei; Han, Xu; Bi, Yanfeng; Huang, Liangliang; Zhou, Kun; Zheng, Zhiping.

In: Inorganic Chemistry Frontiers, Vol. 5, No. 6, 01.06.2018, p. 1329-1335.

Research output: Contribution to journalArticle

Shi, Cheng ; Chen, Mengwei ; Han, Xu ; Bi, Yanfeng ; Huang, Liangliang ; Zhou, Kun ; Zheng, Zhiping. / Thiacalix[4]arene-supported tetradecanuclear cobalt nanocage cluster as precursor to synthesize CoO/Co9S8@CN composite for supercapacitor application. In: Inorganic Chemistry Frontiers. 2018 ; Vol. 5, No. 6. pp. 1329-1335.
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abstract = "A new tetradecanuclear cobalt cluster [Co14(TC4A)3Cl3(Tz)12(H2O)6](OH)(DMF)14(CH3OH)6(H2O)4 (Abbr. Co14, H4TC4A = p-tert-Butylthiacalix[4]arene, HTz = 1H-tetrazole) was obtained by the solvothermal reaction of CoCl2·6H2O, H4TC4A and Htz in DMF. The cluster featured the quadrilateral planar CoII4 units housing tri-capped trigonal Co12 clusters with two enclosed Co nanocages linked by Tz ligands. The uniform CoO/Co9S8@CN composite derived from direct annealing of Co14 clusters was obtained and characterized by XRD, EDS, XPS, and Raman spectra. The composite on nickel foam (CoO/Co9S8@CN/NF) was used as an electrode to fabricate supercapacitors with specific capacitances of 83.7{\%} at 2 A g-1 and 70.0{\%} at 5 A g-1 at 0.5 A g-1 (303.3 F g-1). The composite from Co14 precursor also shows high charge-discharge reversibility with a capacity retention of 96.3{\%} and average columbic efficiency of 98.2{\%} after 1000 cycles at 2.0 A g-1.",
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AB - A new tetradecanuclear cobalt cluster [Co14(TC4A)3Cl3(Tz)12(H2O)6](OH)(DMF)14(CH3OH)6(H2O)4 (Abbr. Co14, H4TC4A = p-tert-Butylthiacalix[4]arene, HTz = 1H-tetrazole) was obtained by the solvothermal reaction of CoCl2·6H2O, H4TC4A and Htz in DMF. The cluster featured the quadrilateral planar CoII4 units housing tri-capped trigonal Co12 clusters with two enclosed Co nanocages linked by Tz ligands. The uniform CoO/Co9S8@CN composite derived from direct annealing of Co14 clusters was obtained and characterized by XRD, EDS, XPS, and Raman spectra. The composite on nickel foam (CoO/Co9S8@CN/NF) was used as an electrode to fabricate supercapacitors with specific capacitances of 83.7% at 2 A g-1 and 70.0% at 5 A g-1 at 0.5 A g-1 (303.3 F g-1). The composite from Co14 precursor also shows high charge-discharge reversibility with a capacity retention of 96.3% and average columbic efficiency of 98.2% after 1000 cycles at 2.0 A g-1.

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