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Nano Research 2021, 14(8): 2574-2583 https://doi.org/10.1007/s12274-020-3257-z
Research Article | Issue | Published: 23 December 2020

Favorable anion adsorption/desorption of high rate NiSe2 nanosheets/hollow mesoporous carbon for battery-supercapacitor hybrid devices

Show Author's Information Xiaojuan Zhao1,  Houzhao Wan1( ),  Pei Liang2( ),  Nengze Wang1,  Cong Wang1,  Yi Gan1,  Xu Chen1,3,  Qiuyang Tan1,  Xiang Liu1,  Jun Zhang1,  Yi Wang3,  Hanbin Wang1( ),  Hao Wang1( )
Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices, School of Microelectronics and Faculty of Physics and Electronic Science, Hubei University, Wuhan 430062, China
College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China
Max Planck Institute for Solid State Research, Heisenbergstr 1, 70569 Stuttgart, Germany
Keywords:
core-shell structure, supercapacitor, nickel selenide, mesoporous carbon, high rate
Topics:
CarbonCathodesDensity functional theoryElectric batteries Energy storageNanosheetsNickel compoundsPotassium hydroxideSupercapacitor
Cite this article:
Zhao X, Wan H, Liang P, et al. Favorable anion adsorption/desorption of high rate NiSe2 nanosheets/hollow mesoporous carbon for battery-supercapacitor hybrid devices. Nano Research, 2021, 14(8): 2574-2583. https://doi.org/10.1007/s12274-020-3257-z
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Abstract Full text Electronic supplementary material About this article

High-rate battery-type cathode materials have attracted wide attention for advanced battery-supercapacitor hybrid (BSH) devices. Herein, a core-shell structure of the hollow mesoporous carbon spheres (HMCS) supported NiSe2 nanosheets (HMCS/NiSe2) is constructed through two-step reactions. The HMCS/NiSe2 shows a max specific capacity of 1,153.5 C·g-1 at the current density of 1 A·g-1, and can remain at 774.5 C·g-1 even at 40 A·g-1 (the retention rate as high as 67.1%) and then the HMCS/NiSe2 electrode can keep 80.5% specific capacity after 5,000 cycles at a current density of 10 A·g-1. Moreover, the density functional theory (DFT) calculation confirmed that the introduction HMCS into NiSe2 made adsorption/desorption of OH- easier, which can achieve higher rate capability. The HMCS/NiSe2//6 M KOH//HMCS hybrid device has energy density of 47.15 Wh·kg-1 and power density of 801.8 W·kg-1. This work provides a feasible electrode material with a high rate and its preparation method for high energy density and power density energy storage devices.


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About this article

Favorable anion adsorption/desorption of high rate NiSe2 nanosheets/hollow mesoporous carbon for battery-supercapacitor hybrid devices

Show Author's information Xiaojuan Zhao1, Houzhao Wan1( ), Pei Liang2( ), Nengze Wang1, Cong Wang1, Yi Gan1, Xu Chen1,3, Qiuyang Tan1, Xiang Liu1, Jun Zhang1, Yi Wang3, Hanbin Wang1( ), Hao Wang1( )
Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices, School of Microelectronics and Faculty of Physics and Electronic Science, Hubei University, Wuhan 430062, China
College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China
Max Planck Institute for Solid State Research, Heisenbergstr 1, 70569 Stuttgart, Germany

Abstract

High-rate battery-type cathode materials have attracted wide attention for advanced battery-supercapacitor hybrid (BSH) devices. Herein, a core-shell structure of the hollow mesoporous carbon spheres (HMCS) supported NiSe2 nanosheets (HMCS/NiSe2) is constructed through two-step reactions. The HMCS/NiSe2 shows a max specific capacity of 1,153.5 C·g-1 at the current density of 1 A·g-1, and can remain at 774.5 C·g-1 even at 40 A·g-1 (the retention rate as high as 67.1%) and then the HMCS/NiSe2 electrode can keep 80.5% specific capacity after 5,000 cycles at a current density of 10 A·g-1. Moreover, the density functional theory (DFT) calculation confirmed that the introduction HMCS into NiSe2 made adsorption/desorption of OH- easier, which can achieve higher rate capability. The HMCS/NiSe2//6 M KOH//HMCS hybrid device has energy density of 47.15 Wh·kg-1 and power density of 801.8 W·kg-1. This work provides a feasible electrode material with a high rate and its preparation method for high energy density and power density energy storage devices.

Keywords: core-shell structure, supercapacitor, nickel selenide, mesoporous carbon, high rate

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Acknowledgements

Publication history

Received: 26 August 2020
Revised: 22 November 2020
Accepted: 22 November 2020
Published: 23 December 2020
Issue date: August 2021

Copyright

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020

Acknowledgements

This work was supported by the National Natural Science Foundation of China (No. 52002122), the Science and Technology Department of Hubei Province (No. 2019AAA038) and the Wuhan Yellow Crane Talent Program (No. 2017-02). This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 823717-ESTEEM3.

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