A highly electronic conductive cobalt nickel sulphide dendrite/quasi-spherical nanocomposite for a supercapacitor electrode with ultrahigh areal specific capacitance

Tang, Yongfu; Chen, Teng; Yu, Steve S.‐F.; Qiao, Yuqing; Mu, Shichun; Zhang, Shaohua; Zhao, Yufeng; Hou, Li; Huang, Weiwei; Gao, Faming

doi:10.1016/j.jpowsour.2015.07.035

Cited by 176 publications

(57 citation statements)

References 35 publications

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“…As shown in the high frequency region in Figure , there are no distinct semicircles for the Nyquist plots but the intersection with the real axis in high frequency, which represents the ohmic resistance of the electrode . And the intersection could represent their electronic conductivity ,,,. Clearly, SiW ‐ 2 has the best electrical conductivity in the SiW 12 series of compounds.…”

Section: Resultsmentioning

confidence: 99%

Enhancing Energy Storage via TEA‐Dependent Controlled Syntheses: Two Series of Polyoxometalate‐Based Inorganic‐Organic Hybrids and their Supercapacitor Properties

et al. 2018

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To enhance energy storage performance via modulation of crystal structure on the molecular level, two series of triethylamine (TEA)‐dependent polyoxometalate (POM) based inorganic‐organic hybrid compounds, [CuII(btx)2]2[SiW12O40] (SiW‐1), [CuI(btx)]4[SiW12O40] (SiW‐2), [CuI4(btx)3][SiW12O40] ⋅ 2H2O (SiW‐3), [{CuII6(btx)7(H2O)12}H4⊂(W12O40)2] ⋅ 12H2O (W‐1), [{CuII7(btx)8(H2O)10}H2⊂(W12O40)2] ⋅ 2H2O (W‐2) and [{CuII10CuI2(btx)11(H2O)16}H2⊂(W12O40)3] ⋅ 6H2O (W‐3) (btx=1,4‐bis(triazol‐1‐ylmethyl)benzene) have been synthesized and explored as pseudocapacitor electrode materials. Compared to other compounds, SiW‐2 shows a specific capacitance of 110.3 F g−1 at 3.0 A g−1 and only experiences a capacitance loss of 13 % after 1000 cycles at a current density of 18.0 A g−1. More importantly, the two series of compounds can be considered as a model for studying the effects of the molecular structures on the pseudocapacitor performance. The result verifies that besides the type of POM, the capacitance ability of the POM‐based compounds is mainly dominated by the connecting modes of adjacent POM building blocks and the dimension of covalent networks formed by POM building blocks. Thus, this work may open a new avenue to optimize the performance of POM‐based capacitors.

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Section: Resultsmentioning

confidence: 99%

Enhancing Energy Storage via TEA‐Dependent Controlled Syntheses: Two Series of Polyoxometalate‐Based Inorganic‐Organic Hybrids and their Supercapacitor Properties

et al. 2018

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“…Transition metal sulfides (e.g., NiSx, CuSx, CoSx, and VS x ) are attracting increasing interest as electrode materials for supercapacitors and have achieved excellent electrochemical performances because of their relatively high capacitance and excellent redox reversibility (Jun et al 2011;Wan et al 2013;Xia et al 2014;Peng et al 2015;Tang et al 2015). Among the metal sulfides, nickel sulfides have drawn tremendous attention with the advantages of good electronic conduction, high redox activity, low cost, and ease of fabrication (Li et al 2014c).…”

Section: Introductionmentioning

confidence: 99%

Polypyrrole/nickel sulfide/bacterial cellulose nanofibrous composite membranes for flexible supercapacitor electrodes

et al. 2016

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The increasing trend of portable electronic products requires the development of portable and flexible energy-storage devices, such as flexible supercapacitors. In this study, we deposited polypyrrole (PPy) and nickel sulfide (NiS) on bacterial cellulose (BC) nanofibrous membranes to be used as flexible supercapacitor electrodes. The obtained PPy/ NiS/BC composite membranes are highly conductive, with the electrical conductivity up to 5.1 S cm -1 . Electrochemical measurements showed that the supercapacitors based on the PPy/NiS/BC electrodes have a high specific capacitance of 713 F g -1 with a power density of 39.5 W kg -1 and an energy density of 239.0 Wh kg -1 at a current density of 0.8 mA cm -2 . With increasing current density from 0.2 to 1.6 mA cm -2 , the corresponding capacitance changes from 884 to 569 F g -1 . The presence of NiS is found to considerably improve the capacitance performance.

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“…The CV curves exhibit excellent rate performance without any redox peak in the chosen voltage range. The specific capacitance of carbon electrode can be calculated from the cyclic voltammograms according to the following equation[34] Csp =…”

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confidence: 99%

Preparation and characterization of hierarchical porous carbons derived from solid leather waste for supercapacitor applications

Konikkara

Kennedy

Vijaya³

2016

Journal of Hazardous Materials

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A highly electronic conductive cobalt nickel sulphide dendrite/quasi-spherical nanocomposite for a supercapacitor electrode with ultrahigh areal specific capacitance

Cited by 176 publications

References 35 publications

Enhancing Energy Storage via TEA‐Dependent Controlled Syntheses: Two Series of Polyoxometalate‐Based Inorganic‐Organic Hybrids and their Supercapacitor Properties

Enhancing Energy Storage via TEA‐Dependent Controlled Syntheses: Two Series of Polyoxometalate‐Based Inorganic‐Organic Hybrids and their Supercapacitor Properties

Polypyrrole/nickel sulfide/bacterial cellulose nanofibrous composite membranes for flexible supercapacitor electrodes

Preparation and characterization of hierarchical porous carbons derived from solid leather waste for supercapacitor applications

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