文献类型：期刊文献

英文题名：Loofah sponge-derived 3D flexible porous carbon electrode for high performance supercapacitor

作者：Zhao, Chunhua[1];Tong, Xiangzhi[1];Yang, Yongrong[1];Guo, Huiming[1];Gao, Wenjie[1];Li, Mingkun[1];Zhu, Yunpeng[1];Zhao, Chongjun[1]

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

年份：2024

卷号：78

外文期刊名：JOURNAL OF ENERGY STORAGE

收录：;EI(收录号：20240615494483);WOS:【SCI-EXPANDED(收录号:WOS:001154317300001)】；

基金：We are grateful for the support of National Natural Science Foun-dation of China (22075082) , 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) .

语种：英文

外文关键词：Loofah sponge; 3D flexible carbon electrode; Network; Cellulose; Supercapacitor

摘要：Energy storage facilitate the substitution of clean and sustainable new energy including solar, wind and tidy energy to the pollution-produced and one-off conventional fossil. Carbon, as activated material, plays key roles in both supercapacitor and battery. Biomass-derived carbon makes fossil-free energy storage be realized. Herein, natural loofah sponge is chosen as the carbon source in supercapacitor. Based on the special network and macroscopical shape of loofah, 3D porous carbon electrode rather than powdery activated material is directly constructed. Especially, flexibility is endowed to this carbon electrode when the lignin and hemicellulose are selectively removed. 3D flexible carbon electrode prepared at the optimized conditions (FLSC-4-1000) owns a high specific surface area of 772.87 m(2) g(-1). In addition, FLSC-4-1000 exhibits outstanding electrochemical supercapacitor performance: A specific capacitance of 267 F g(-1) at the current density of 0.5 A g(-1) and a high capacitance retention of 97 % over 10,000 cycles for the electrode. Meanwhile, an energy density of 20.35 Wh kg(-1) at 900 W kg(-1) and 18.5 Wh kg(-1) at 18.01 kW kg(-1) for symmetric supercapacitor (SSC) of FLSC-4-1000// FLSC-4-1000.