Diaminopyrene modified reduced graphene oxide as a novel electrode material for excellent performance supercapacitors

Hongwei Kang; Chengpeng Zhang; Yonggui Xu; Weiyang Zhang; Jianhua Jiao; Zhikun Li; LeiLei Zhu; Xiaoqian Liu

doi:10.1039/C9RA10429A

Diaminopyrene modified reduced graphene oxide as a novel electrode material for excellent performance supercapacitors†

Hongwei Kang,

*^a Chengpeng Zhang,^b Yonggui Xu,^b Weiyang Zhang,^a Jianhua Jiao,^b Zhikun Li,*^a LeiLei Zhu^b and Xiaoqian Liu^b

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* Corresponding authors

^a Henan Key Laboratory of Nanocomposite and Application, Institute of Nanostructured Functional Materials, Huanghe Science and Technology College, Zhengzhou 450006, China
E-mail: hongweikang@infm.hhstu.edu.cn, zhikunli@infm.hhstu.edu.cn

^b Henan Science and Technology Exchange Center with Foreign Countries, China

Abstract

In this paper, novel reduced graphene oxide (rGO) composites (DAPrGOs) modified by diaminopyrene (DAP) were successfully synthesized via a facile solvothermal reaction method and used for supercapacitors. Compared with the pristine rGO, the DAPrGO1 electrode showed distinctly better performance (397.63 F g⁻¹ vs. 80.29 F g⁻¹ of pristine rGO at 0.5 A g⁻¹) with small charge transfer resistance. When a symmetric device was fabricated using DAPrGO1 as the active material, it also exhibited a high capacitance of 82.70 F g⁻¹ at 0.5 A g⁻¹ with an energy density of 25.84 W h kg⁻¹ at a power density of 375 W kg⁻¹, and even offered a high power density of 7500 W kg⁻¹ (18.71 W h kg⁻¹) at 10 A g⁻¹. Moreover, the device possessed good electrochemical stability up to 20 000 cycles, implying promising applications in energy storage fields.

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DOI: https://doi.org/10.1039/C9RA10429A
Article type: Paper
Submitted: 12 Dec 2019
Accepted: 02 Jan 2020
First published: 08 Jan 2020
This article is Open Access

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RSC Adv., 2020,10, 1507-1513

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Diaminopyrene modified reduced graphene oxide as a novel electrode material for excellent performance supercapacitors

H. Kang, C. Zhang, Y. Xu, W. Zhang, J. Jiao, Z. Li, L. Zhu and X. Liu, RSC Adv., 2020, 10, 1507 DOI: 10.1039/C9RA10429A

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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Diaminopyrene modified reduced graphene oxide as a novel electrode material for excellent performance supercapacitors†

Abstract

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Diaminopyrene modified reduced graphene oxide as a novel electrode material for excellent performance supercapacitors

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