文献类型：期刊文献

英文题名：Soybean root-derived N, O co-doped hierarchical porous carbon for supercapacitors

作者：Zhao, Chongjun[1];Ding, Yiwen[1];Huang, Yaoxuan[1];Li, Nan[1];Hu, Yaqi[1];Zhao, Chunhua[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Shanghai Key Lab Adv Polymer Mat,Minist Educ, Shanghai 200237, Peoples R China

年份：2021

卷号：555

外文期刊名：APPLIED SURFACE SCIENCE

收录：;EI(收录号：20211510196738);WOS:【SCI-EXPANDED(收录号:WOS:000647654700001)】；

基金：We are grateful for the support of Natural Science Foundation of Shanghai (No. 19ZR1413000, 13ZR1411900), Shanghai Alliance Plan (No. LM201881, LM201751), Shanghai Leading Academic Discipline Project (B502), and Shanghai Key Laboratory Project (08DZ2230500). We also thank Research Center of Analysis and Test of East China University of Science and Technology for the help on the characterization.

语种：英文

外文关键词：Soybean root-derived carbon; One-step carbonization-activation; N,O co-doped; Hierarchical pores; Supercapacitors

摘要：3D hierarchical porous soybean root-derived carbon (SRC) is successfully developed from N, O-contained natural soybean root through a convenient one-step carbonization activation route. SRC own abundant hierarchical pores, great specific surface area and considerable N and O elements. As-prepared carbon-based electrode exhibits specific capacitance of 269.4 F g(-1) at 1 A g(-1) and capacitance retention (97% after 20,000 charge and discharge cycles), while assembled symmetric supercapacitor (SSC) has an operating voltage window of 2.0 V and energy density of 23.0 Wh kg(-1) at the power density of 500 W kg(-1). This work makes natural soybean root be utilized as 3D heteroatom-doped carbon and provide another alternative strategy for high-performance electrode materials.