Green Preparation and Supercapacitive Performance of NiCo<sub>2</sub>S<sub>4</sub>@ACF Heterogeneous Electrode Materials

Shi-Huai ZHAO; Zi-Bo YANG; Xiao-Ming ZHAO; Wen-Wen XU; Xin WEN; Qing-Yin ZHANG; [in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]

doi:10.15541/jim20180158

Journal of Inorganic Materials, Volume. 34, Issue 2, 130(2019)

Green Preparation and Supercapacitive Performance of NiCo₂S₄@ACF Heterogeneous Electrode Materials

Shi-Huai ZHAO1...2, Zi-Bo YANG2, Xiao-Ming ZHAO1,3, Wen-Wen XU2, Xin WEN2, Qing-Yin ZHANG1,2, [in Chinese]1,2, [in Chinese]2, [in Chinese]1,3, [in Chinese]2, [in Chinese]2, and [in Chinese]12 |Show fewer author(s)

Author Affiliations

¹1. State Key Laboratory of Separation Membrane and Membrane Process, Tianjin Polytechnic University, Tianjin 300387, China

²2. School of Environment and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China

³3. School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China

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Figures & Tables(7)

. Preparation process of NiCo₂S₄@ACF composite electrode material

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2. SEM images of raw materials and composite electrode material
(a-b) Pretreatment ACF; (c) NiCo₂S₄microspheres; (d) NiCo₂S₄@ACF precursor; (e-f) NiCo₂S₄@ACF

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. XRD pattern of NiCo₂S₄@ACF composites

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. (a) CV characteristics of NiCo₂S₄@ACF composite electrode materials at different scan rates, (b) GCD curves of NiCo₂S₄@ACF composite electrodes at various current densities, (c) specific capacitance and (d) Nyquist plots of NiCo₂S₄@ACF, NiCo₂S₄@ACF, NiS@ACF and CoS@ACF composite electrodes with inset in (d) showing magnified curves and equivalent circuit

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. CV curves (a) of NiCo₂S₄@ACF electrode and ACF electrode at scan rate of 20 mV/s; and (b) ASC device in different voltage window at 20 mV/s and (c) ASC device in a voltage window of 0-1.6 V at different scan rates, (d) GCD curves and (e) specific capacitance of ASC device at various current densities, and (f) cycling performance of ASC device at current density of 7 A/g

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. Ragon plots of the ASC device

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Table 1. Energy densities and powder densities of different ASC in an aqueous system

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Table 1. Energy densities and powder densities of different ASC in an aqueous system

Sample	Energy density/ (Wh∙kg^-1)	Power density/ (W∙kg^-1)	Ref.
NiCo₂S₄@ACF	49.38	800.00	This work
NiCo₂S₄nanoboxes	17.10	2250.00	[26]
NiCo₂S₄ nanosheets	45.50	512.00	[17]
NiCo₂S₄@graphene	43.40	254.30	[27]
NiCo₂S₄/Ppy	34.62	120.19	[15]
NiCo₂S₄ hollow microsphere	24.70	428.00	[16]
NiCo₂S₄@ NiMoO₄/NF	21.40	58.00	[14]
NiCo₂S₄@RGO	21.90	417.10	[28]

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Shi-Huai ZHAO, Zi-Bo YANG, Xiao-Ming ZHAO, Wen-Wen XU, Xin WEN, Qing-Yin ZHANG, [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Green Preparation and Supercapacitive Performance of NiCo₂S₄@ACF Heterogeneous Electrode Materials[J]. Journal of Inorganic Materials, 2019, 34(2): 130

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