Facile and controllable synthesis N-doping porous Graphene for high-performance Supercapacitor.pdf (1.31 MB)
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Facile and controllable synthesis N-doping porous graphene for high-performance supercapacitor

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journal contribution
posted on 29.03.2021, 10:05 by Xiuxian He, Zheng Tang, LianLian Gao, Fangyuan Wang, Jinping Zhao, Zhichao Miao, Xiaozhong Wu, Jin Zhou, Yang Su, Shuping Zhuo
Engineering graphene with efficient ion and electron transport properties is vital for development of high performance, next generation energy storage devices. The protocols generally involve pore generation and doping of graphene with the heteroatoms. Herein we report the realization of pore generation, control, and N-doping of graphene in one single process using reduced metal salt as etching agent and environment friendly N2 gas as doping agent. Furthermore, we found the porous structure (pore size and density), the dopant bonding configuration and doping amount can be controlled by change the metal salt and nitrogen source, which allows us to investigate the influence of pore and N-doping structure of porous graphene (PG) in their supercapacitor performance. Specifically, the N-doping, PG prepared by Ni salt (PG-Ni) shows the smaller pore size (average pore size of ~20–30 nm) and larger pore density. PG-Ni exhibits high specific capacitance of 575 F/g along with the energy density of 51.2 Wh/kg at 0.5 A/g current density and also shows good rate, cycling performances. Considering the excellent performance, ease of the process, and pore structure controllability, we believe the method provides a new route for developing graphene based high performance supercapacitors.

Funding

Natural Science Foundation of Shandong Province (ZR2017JL014)

Taishan Scholar Foundation (tsqn201812063)

National Natural Science Foundation of China (No. 21576159, 51907110)

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Published in

Journal of Electroanalytical Chemistry

Volume

871

Publisher

Elsevier

Version

AM (Accepted Manuscript)

Rights holder

© Elsevier

Publisher statement

This paper was accepted for publication in the journal Journal of Electroanalytical Chemistry and the definitive published version is available at https://doi.org/10.1016/j.jelechem.2020.114311.

Acceptance date

27/05/2020

Publication date

2020-05-31

Copyright date

2020

ISSN

1572-6657

eISSN

1873-2569

Language

en

Depositor

Dr Yang Su. Deposit date: 22 March 2021

Article number

114311