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Hybrid manufacturing of 3D hierarchical porous carbons for electrochemical storage

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journal contribution
posted on 18.05.2020 by Panfeng Wang, Hao Zhang, Huizhi Wang, Dawei Li, Jin Xuan, Li Zhang
© 2020 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Carbon is one of the most attractive electrode materials for electrochemical energy storage. An ideal electrode structure requires a pore distribution ranging from nanoscale to milliscale to simultaneously enable efficient mass transfer, enlarge the specific surface area, and minimize the electrical resistance. Here, a novel hybrid method to fabricate carbon electrodes with a designable hierarchical pore structure is presented. The proposed manufacturing combines stereolithography, pyrolysis, and chemical activation, which contribute to producing pores in millimeter, micrometer, and nanometer, respectively. The prepared hierarchical microarchitectural material outperforms the commercial carbon paper by five times in current density. Further enhancement in the electrochemical performance can be achieved through optimizing the distribution of hierarchical pores, which is proved feasible in the applications of vanadium redox flow battery and supercapacitor applications.

Funding

National Natural Science Foundation of China (No. 51776074)

Royal Society under grant number RSG\ R1\180162

UK Engineering and Physical Sciences Research Council under grant number EP/R012164/2

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Published in

Advanced Materials Technologies

Volume

5

Issue

6

Pages

1901030 - 1901030

Publisher

Wiley

Version

VoR (Version of Record)

Rights holder

© The authors

Publisher statement

This is an Open Access Article. It is published by Wiley under the Creative Commons Attribution 4.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/

Acceptance date

30/03/2020

Publication date

2020-04-27

Copyright date

2020

ISSN

2365-709X

eISSN

2365-709X

Language

en

Depositor

Prof Jin Xuan. Deposit date: 18 May 2020

Article number

ARTN 1901030

Licence

Exports