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[1,2,3,4]

第一作者：Cheng, Jie

通信作者：Sun, QW[1]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Key Lab Tree Breeding & Cultivat, State Forestry & Grassland Adm, Beijing 100091, Peoples R China;[3]Chinese Acad Forestry, State Key Lab Efficient Prod Forest Resources, Beijing 100091, Peoples R China;[4]Chinese Acad Forestry, Beijing 100091, Peoples R China

年份：2024

卷号：254

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001106072300001)】；

基金：Acknowledgements The authors wish to express their gratitude for the financial support by the National Key Research and Development Program (2022YFF130300503) . Thanks to eceshi ( www.eceshi.com ) for the XPS analysis.

语种：英文

外文关键词：S dual-doping; Graphene aerogels; Eucalyptus wood tar; Supercapacitor; Cr(VI)

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).