One-step controlled synthesis of hierarchical hollow Ni3S2/NiS@Ni3S4 core/shell submicrospheres for high-performance supercapacitors

Cheng, Lingli; Hu, Yiyang; Ling, Lei; Qiao, Dandan; Cui, Shi‐Cong; Jiao, Z.

doi:10.1016/j.electacta.2018.07.013

Cited by 93 publications

(32 citation statements)

References 67 publications

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“…Apparently, with the advances in materials construction, the solvothermal method has been shown to provide a unique and uniform morphology . Based on characteristics such as high specific surface area, low density, and thermal coefficient as well as refractivity, spherical morphology have drawn a great deal of attention in the last couple of years . However, major challenges still remain for material science researchers developing porous MOFs‐based materials for electrochemical energy storage.…”

Section: Introductionmentioning

confidence: 99%

A Core‐Shell Assembly of Hierarchical Porous Ni@C Nanospheres Synthesized from Metal‐Organic Framework for Electrochemical Energy Application

Kumar

Kim

Jeong

et al. 2019

Physica Status Solidi (a)

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Metal‐organic frameworks (MOFs) have emerged as one of the most outstanding innovated and functional materials for electrochemical application. Here, the structure of novel MOFs‐derived hierarchically porous Nickel@Carbon nanospheres (HP‐Ni@C‐N) synthesized via pyrolysis after the solvothermal reaction is discussed. The method includes the decomposition of the trimesic acid as an organic molecule at a specific temperature of transformation into a carbon matrix wrapping of nickel nanoparticles (Ni NPs). Furthermore, HP‐Ni@C‐N supported on nickel foam as an electrochemical energy storage supercapacitor application and obtained 912 F g−1 at 10 mV s−1 is reported. Interestingly, the covalent bridge between the Ni core and carbon shell facilitates the faster ions transportation. Therefore, it is presumed that this work can be informative and elucidative for the construction of MOFs‐derived transition metals hybrid nanostructures.

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Section: Introductionmentioning

confidence: 99%

A Core‐Shell Assembly of Hierarchical Porous Ni@C Nanospheres Synthesized from Metal‐Organic Framework for Electrochemical Energy Application

Kumar

Kim

Jeong

et al. 2019

Physica Status Solidi (a)

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“…[33][34][35][36] For instance, hollow NiO nano-octahedrons were successfully prepared without templates, delivering ultralarge Li-storage capability. [33][34][35][36] For instance, hollow NiO nano-octahedrons were successfully prepared without templates, delivering ultralarge Li-storage capability.…”

mentioning

confidence: 99%

Hierarchical Hollow‐Microsphere Metal–Selenide@Carbon Composites with Rational Surface Engineering for Advanced Sodium Storage

et al. 2018

Advanced Energy Materials

263

144

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As a result of its high‐energy density, metal–selenides have demanded attention as a potential energy‐storage material. But they suffer from volume expansion, dissolved poly‐selenides and sluggish kinetics. Herein, utilizing' thermal selenization via the Kirkendall effect, microspheres of NiSe2 confined by carbon are successfully obtained from the self‐assembly of Ni‐precursor/PPy. The derived hierarchical hollow architecture increases the active defects for sodium storage, while the existing double N‐doped carbon layers significantly alleviate the volume swelling. As a result, it shows ultrafast rate capability, delivering a stable capacity of 374 mAh g−1, even after 3000 loops at 10.0 A g−1. These remarkable results may be ascribed to the NiOC bonds on the interface of NiSe2 and the carbon film, which leads to the faster transfer of ions, the effective trapping of poly‐selenide, and the highly reversible conversion reaction. The kinetic analysis of cyclic voltammetry (CV) demonstrates that the electrochemical process is mainly dominated by pseudocapacitive behaviors. Supported by the results of electrochemical impedance spectroscopy (EIS), it is confirmed that the solid–electrolyte interface films are reversibly formed/decomposed during cycling. Given this, this elaborate work might open up a potential avenue for the rational design of metal‐sulfur/selenide anodes for advanced battery systems.

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“…Recently, the introduction of heteroatoms (O/N/S) in carbon skeleton has effectively increased the specic capacitance of carbon electrode materials in water electrolyte. [14][15][16][17] The mechanism of capacitance increase may be the Faraday reaction with heteroatom functional groups and the increase of wettability of channels. 17 Considering the above factors, if a material has both homogeneous ultrapore and heteroatom, it should have good capacitance performance.…”

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confidence: 99%

Fabrication of resorcinol-based porous resin carbon material and its application in aqueous symmetric supercapacitors

et al. 2020

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One-step controlled synthesis of hierarchical hollow Ni3S2/NiS@Ni3S4 core/shell submicrospheres for high-performance supercapacitors

Cited by 93 publications

References 67 publications

A Core‐Shell Assembly of Hierarchical Porous Ni@C Nanospheres Synthesized from Metal‐Organic Framework for Electrochemical Energy Application

A Core‐Shell Assembly of Hierarchical Porous Ni@C Nanospheres Synthesized from Metal‐Organic Framework for Electrochemical Energy Application

Hierarchical Hollow‐Microsphere Metal–Selenide@Carbon Composites with Rational Surface Engineering for Advanced Sodium Storage

Fabrication of resorcinol-based porous resin carbon material and its application in aqueous symmetric supercapacitors

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