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author:

Zhao, Y. (Zhao, Y..) [1] | Chen, H. (Chen, H..) [2] | Xiao, L. (Xiao, L..) [3] | Yin, X. (Yin, X..) [4] | Hou, L. (Hou, L..) [5]

Indexed by:

Scopus

Abstract:

The urgent demand for high-performance energy storage components has been driving the exploration for superior battery-type electrode materials for hybrid supercapacitors, which is challenging but of considerable significance. In this paper, a one-step pyrolysis route was elaborated to prepare oxygen-enriched hierarchical porous carbon supported Co-Ni nanoparticles Co-Ni/OHPCs) by facile self-crosslinking assisted high internal phase emulsion (HIPE) templating. The oxygen-enriched porous carbon framework provides large specific surface area and structural stability, meanwhile Co doping can significantly reinforce the electrochemical performance of the Co-Ni/OHPCs battery-type electrodes. By optimizing the ratio of Ni2+ to Co2+ ions, the obtained Co-Ni/OHPC electrodes exhibited excellent electrochemical performance of 817.3 F g−1 at a scan rate of 5 mV s−1. Furthermore, coupling with an activated porous carbon anode, the assembled hybrid supercapacitor (HSC) possessed an appreciable energy density of 66.94 Wh kg−1 at 409.9 W kg−1 and a capacitance retention ratio of 73.89% after 5000 cycles, showing considerable application prospects. This structural design strategy provides new inspiration for the reasonable optimization of new electrode materials for promising hybrid supercapacitors. © 2022 Elsevier B.V.

Keyword:

Hierarchically porous carbon; High internal phase emulsion templating; Hybrid supercapacitor; Self-crosslinking; Transition metal

Community:

  • [ 1 ] [Zhao, Y.]Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 2 ] [Chen, H.]Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 3 ] [Xiao, L.]Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 4 ] [Xiao, L.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
  • [ 5 ] [Yin, X.]Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 6 ] [Yin, X.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
  • [ 7 ] [Hou, L.]Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 8 ] [Hou, L.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China

Reprint 's Address:

  • [Zhao, Y.]Department of Materials-Oriented Chemical Engineering, China; ; Department of Materials-Oriented Chemical Engineering, China; 电子邮件: lxhou@fzu.edu.cn

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Source :

Journal of Alloys and Compounds

ISSN: 0925-8388

Year: 2022

Volume: 907

6 . 2

JCR@2022

5 . 8 0 0

JCR@2023

ESI HC Threshold:91

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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