文献类型：期刊文献

英文题名：Free-standing N, S co-doped graphene aerogels coupled with Eucalyptus wood tar-based activated carbon and cellulose nanofibers for high-performance supercapacitor and removal of Cr(VI)

作者：Cheng, Jie[1,2] Jiao, Ruzhen[1,2] Sun, Qiwu[1,2,3]

第一作者：Cheng, Jie

机构：[1] Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China; [2] Key Laboratory of Tree Breeding and Cultivation of State Forestry and Grassland Administration, Chinese Academy of Forestry, Beijing, 100091, China; [3] State Key Laboratory of Efficient Production of Forest Resources, Chinese Academy of Forestry, Beijing, 100091, China

年份：2024

卷号：254

外文期刊名：International Journal of Biological Macromolecules

收录：EI(收录号：20234515017443);Scopus(收录号：2-s2.0-85175526209)

语种：英文

外文关键词：Activated carbon - Aerogels - Chromium compounds - Graphene - Nanocellulose - Nanofibers - Tar - Wood

摘要：N, S-dual doping graphene aerogels with three dimensional interconnected network and large specific surface area have been fabricated by cellulose nanofibers (CNF), Eucalyptus wood tar-based activated carbon (AC), and reduced graphene oxide (rGO) for the energy storage applications as well as the removal of Cr(VI). Benefiting from the particular pore structural characteristics, the optimized activated carbon aerogel electrode (GDAC) exhibited prominent capacitances of 813.8 F/g at 1 A/g, and prominent cycling stability. The Ragone plot for the GDAC supercapacitor depicted that the energy density reached maximum (50 Wh/kg) when the power density was 370 W/kg. As far as the adsorption capacity of GDAC for Cr(VI), GDAC achieved a removal rate of 97 % for Cr(VI) and a maximum adsorption capacity of 939.20 mg/g. The fabrication method and excellent performance of GDAC proposed in this study provided new perspective into the potential application of Eucalyptus wood tar-based materials in the supercapacitor applications. Additionally, the comprehensive analysis of the structure-function relationship also provided important theoretical foundations for the removal of Cr(VI). ? 2023 Elsevier B.V.