文献类型：期刊文献

英文题名：Hybrid Manufacturing of 3D Hierarchical Porous Carbons for Electrochemical Storage

作者：Wang, Panfeng[1];Zhang, Hao[2];Wang, Huizhi[3];Li, Dawei[1];Xuan, Jin[2];Zhang, Li[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]Loughborough Univ, Dept Chem Engn, Loughborough LE11 3TU, Leics, England;[3]Imperial Coll London, Dept Mech Engn, London SW7 2BU, England

年份：2020

卷号：5

期号：6

外文期刊名：ADVANCED MATERIALS TECHNOLOGIES

收录：;EI(收录号：20201908614470);WOS:【SCI-EXPANDED(收录号:WOS:000528599700001)】；

基金：This work was supported by the National Natural Science Foundation of China (No. 51776074), the Royal Society under grant number RSG\R1\180162, and the UK Engineering and Physical Sciences Research Council under grant number EP/R012164/2.

语种：英文

外文关键词：additive manufacturing; controllable structures; electrochemical energy storages; hierarchical porous carbon; structure-performance relations

摘要：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.