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Title: Self-supporting activated carbon/carbon nanotube/reduced graphene oxide flexible electrode for high performance supercapacitor

A self-supporting and flexible activated carbon/carbon nanotube/reduced graphene oxide (AC/CNT/RGO) film has been rationally designed for constructing high-performance supercapacitor. We prepared the AC/CNT/RGO film by anchoring the AC particles with a 3D and porous framework built by hierarchically weaving the 1 D CNT and 2D RGO using their intrinsic van der Waals force. The CNT network is beneficial for improving the electronic conductivity of the electrode, while the AC particles could effectively suppress the aggregation of RGO and CNT due to their blocking effect. The synergistic effects among the AC, CNT and RGO validate the AC/CNT/RGO as a promising electrode for supercapacitor, exhibiting greatly enhanced electrochemical performances in comparison with the pure RGO film, pure CNT film and AC electrode. Furthermore, the AC/CNT/RGO electrode delivers a high specific capacitance of 101 F g -1 at the current density of 0.2 A g -1 offering a maximum energy density of 30.0 W h kg -1 in organic electrolyte at the cut-off voltage range of 0.001–3.0 V. The findings of this work open a new avenue for the design of self-supporting electrodes for the development of flexible and light weight energy storage supercapacitor.
Authors:
 [1] ;  [1] ;  [2] ;  [1] ;  [1] ;  [3] ;  [4] ;  [4] ;  [3]
  1. Southwest Petroleum Univ., Chengdu (China). The Center of New Energy Materials and Technology
  2. Washington State Univ., Pullman, WA (United States). School of Mechanical and Materials Engineering; Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. Washington State Univ., Pullman, WA (United States). School of Mechanical and Materials Engineering
  4. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Report Number(s):
PNNL-SA-130448
Journal ID: ISSN 0008-6223; PII: S0008622317312277
Grant/Contract Number:
51474196; 51502250; 2016RZ0071; 2017JQ0044; AC05-76RL01830
Type:
Accepted Manuscript
Journal Name:
Carbon
Additional Journal Information:
Journal Volume: 129; Journal ID: ISSN 0008-6223
Publisher:
Elsevier
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; self-supporting; activated carbon/carbon nanotube/reduced graphene oxide film; flexible electrode; binder free; supercapacitor
OSTI Identifier:
1413463

Li, Xing, Tang, Yao, Song, Junhua, Yang, Wei, Wang, Mingshan, Zhu, Chengzhou, Zhao, Wengao, Zheng, Jianming, and Lin, Yuehe. Self-supporting activated carbon/carbon nanotube/reduced graphene oxide flexible electrode for high performance supercapacitor. United States: N. p., Web. doi:10.1016/J.CARBON.2017.11.099.
Li, Xing, Tang, Yao, Song, Junhua, Yang, Wei, Wang, Mingshan, Zhu, Chengzhou, Zhao, Wengao, Zheng, Jianming, & Lin, Yuehe. Self-supporting activated carbon/carbon nanotube/reduced graphene oxide flexible electrode for high performance supercapacitor. United States. doi:10.1016/J.CARBON.2017.11.099.
Li, Xing, Tang, Yao, Song, Junhua, Yang, Wei, Wang, Mingshan, Zhu, Chengzhou, Zhao, Wengao, Zheng, Jianming, and Lin, Yuehe. 2017. "Self-supporting activated carbon/carbon nanotube/reduced graphene oxide flexible electrode for high performance supercapacitor". United States. doi:10.1016/J.CARBON.2017.11.099.
@article{osti_1413463,
title = {Self-supporting activated carbon/carbon nanotube/reduced graphene oxide flexible electrode for high performance supercapacitor},
author = {Li, Xing and Tang, Yao and Song, Junhua and Yang, Wei and Wang, Mingshan and Zhu, Chengzhou and Zhao, Wengao and Zheng, Jianming and Lin, Yuehe},
abstractNote = {A self-supporting and flexible activated carbon/carbon nanotube/reduced graphene oxide (AC/CNT/RGO) film has been rationally designed for constructing high-performance supercapacitor. We prepared the AC/CNT/RGO film by anchoring the AC particles with a 3D and porous framework built by hierarchically weaving the 1 D CNT and 2D RGO using their intrinsic van der Waals force. The CNT network is beneficial for improving the electronic conductivity of the electrode, while the AC particles could effectively suppress the aggregation of RGO and CNT due to their blocking effect. The synergistic effects among the AC, CNT and RGO validate the AC/CNT/RGO as a promising electrode for supercapacitor, exhibiting greatly enhanced electrochemical performances in comparison with the pure RGO film, pure CNT film and AC electrode. Furthermore, the AC/CNT/RGO electrode delivers a high specific capacitance of 101 F g-1 at the current density of 0.2 A g-1 offering a maximum energy density of 30.0 W h kg-1 in organic electrolyte at the cut-off voltage range of 0.001–3.0 V. The findings of this work open a new avenue for the design of self-supporting electrodes for the development of flexible and light weight energy storage supercapacitor.},
doi = {10.1016/J.CARBON.2017.11.099},
journal = {Carbon},
number = ,
volume = 129,
place = {United States},
year = {2017},
month = {12}
}