Scalable combustion synthesis of graphene-welded activated carbon for high-performance supercapacitors
State-of-the-art supercapacitors mainly employ various activated carbons as active electrode materials; however, few of them can simultaneously exhibit superior electrical conductivity and tailored porosity to offer both high energy and power performance. In this work, we demonstrated a scalable com...
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sg-ntu-dr.10356-1604242022-07-22T01:29:33Z Scalable combustion synthesis of graphene-welded activated carbon for high-performance supercapacitors Li, Chen Zhang, Xiong Lv, Zhisheng Wang, Kai Sun, Xianzhong Chen, Xiaodong Ma, Yanwei School of Materials Science and Engineering Innovative Centre for Flexible Devices Engineering::Materials Combustion Synthesis Supercapacitor State-of-the-art supercapacitors mainly employ various activated carbons as active electrode materials; however, few of them can simultaneously exhibit superior electrical conductivity and tailored porosity to offer both high energy and power performance. In this work, we demonstrated a scalable combustion synthesis to manufacture graphene-welded activated carbon in CO2 atmosphere using Mg as sacrificial solder. The electrical conductivity of graphene-welded activated carbon reaches 2836 S m−1, and a hierarchical porous structure is achieved via simply changing the starting conditions of combustion synthesis. These appealing attributes guarantee substantially enhanced ion diffusion and electron transport throughout the carbon matrix, thus delivering a superior energy density of 80 Wh kg−1 and high power density of 70 kW kg−1. The scalable combustion synthesis opens a new avenue to produce high-performance activated carbon materials for future energy-storage devices. This work was financially supported by the National Natural Science Foundation of China (No. 51907193 and No. 51677182) , the Beijing Municipal Science and Technology Commission (No. Z181100000118006) , the Key Research Program of Frontier Sciences, CAS (No. ZDBSLYJSC047) , and the Youth Innovation Promotion Association CAS (No. 2020145) . 2022-07-22T01:29:33Z 2022-07-22T01:29:33Z 2021 Journal Article Li, C., Zhang, X., Lv, Z., Wang, K., Sun, X., Chen, X. & Ma, Y. (2021). Scalable combustion synthesis of graphene-welded activated carbon for high-performance supercapacitors. Chemical Engineering Journal, 414, 128781-. https://dx.doi.org/10.1016/j.cej.2021.128781 1385-8947 https://hdl.handle.net/10356/160424 10.1016/j.cej.2021.128781 2-s2.0-85100629348 414 128781 en Chemical Engineering Journal © 2021 Elsevier B.V. All rights reserved. |
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Engineering::Materials Combustion Synthesis Supercapacitor Li, Chen Zhang, Xiong Lv, Zhisheng Wang, Kai Sun, Xianzhong Chen, Xiaodong Ma, Yanwei Scalable combustion synthesis of graphene-welded activated carbon for high-performance supercapacitors |
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State-of-the-art supercapacitors mainly employ various activated carbons as active electrode materials; however, few of them can simultaneously exhibit superior electrical conductivity and tailored porosity to offer both high energy and power performance. In this work, we demonstrated a scalable combustion synthesis to manufacture graphene-welded activated carbon in CO2 atmosphere using Mg as sacrificial solder. The electrical conductivity of graphene-welded activated carbon reaches 2836 S m−1, and a hierarchical porous structure is achieved via simply changing the starting conditions of combustion synthesis. These appealing attributes guarantee substantially enhanced ion diffusion and electron transport throughout the carbon matrix, thus delivering a superior energy density of 80 Wh kg−1 and high power density of 70 kW kg−1. The scalable combustion synthesis opens a new avenue to produce high-performance activated carbon materials for future energy-storage devices. |
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School of Materials Science and Engineering |
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School of Materials Science and Engineering Li, Chen Zhang, Xiong Lv, Zhisheng Wang, Kai Sun, Xianzhong Chen, Xiaodong Ma, Yanwei |
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Article |
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Li, Chen Zhang, Xiong Lv, Zhisheng Wang, Kai Sun, Xianzhong Chen, Xiaodong Ma, Yanwei |
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Li, Chen |
title |
Scalable combustion synthesis of graphene-welded activated carbon for high-performance supercapacitors |
title_short |
Scalable combustion synthesis of graphene-welded activated carbon for high-performance supercapacitors |
title_full |
Scalable combustion synthesis of graphene-welded activated carbon for high-performance supercapacitors |
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Scalable combustion synthesis of graphene-welded activated carbon for high-performance supercapacitors |
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Scalable combustion synthesis of graphene-welded activated carbon for high-performance supercapacitors |
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scalable combustion synthesis of graphene-welded activated carbon for high-performance supercapacitors |
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2022 |
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https://hdl.handle.net/10356/160424 |
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