文献类型：期刊文献

英文题名：Oxygen-rich graphene vertically grown on 3D N-Doped carbon foam for high-performance sodium ion batteries

作者：Ma, Xiangdong Ji, Chuang Liu, Yike Yu, Xiaoyuan Xiong, Xunhui

第一作者：Ma, Xiangdong

通信作者：Xiong, XH[1]

机构：[1]South China Univ Technol, Guangzhou Key Lab Surface Chem Energy Mat, New Energy Res Inst, Sch Environm & Energy, Guangzhou 510006, Peoples R China;[2]Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550003, Peoples R China;[3]South China Agr Univ, Coll Mat & Energy, Key Lab Biobased Mat & Energy, Minist Educ, Guangzhou 510642, Guangdong, Peoples R China

第一机构：South China Univ Technol, Guangzhou Key Lab Surface Chem Energy Mat, New Energy Res Inst, Sch Environm & Energy, Guangzhou 510006, Peoples R China

通信机构：corresponding author), South China Univ Technol, Guangzhou Key Lab Surface Chem Energy Mat, New Energy Res Inst, Sch Environm & Energy, Guangzhou 510006, Peoples R China.

年份：2022

卷号：530

外文期刊名：JOURNAL OF POWER SOURCES

收录：;EI(收录号：20221111788053);Scopus(收录号：2-s2.0-85126124583);WOS:【SCI-EXPANDED(收录号:WOS:000783081000001)】；

基金：Acknowledgments We gratefully acknowledge the financial support from National Natural Science Foundation of China (51874142) , Guangdong Innova-tive and Entrepreneurial Research Team Program (2016ZT06N569) , Tip-top Scientific and Technical Innovative Youth Talents of Guangdong Special Support Program (2019TQ05L903) and Young Elite Scientists Sponsorship Program by CAST (2019QNRC001) .

语种：英文

外文关键词：Graphene; Oxygen functional group; Vertical array structure; Sodium ion batteries; Long-term stability

摘要：Graphene is emerged as one of the promising anodes for sodium ion batteries (SIBs) in terms of high electronic conductivity and specific surface area, however, the low initial Coulombic efficiency and inferior cycle capability severely limit its application. Herein, oxygen-rich graphene vertically grown on 3D N-doped carbon foam (VGOG/3DNCF) is prepared via a super simple and scalable method, which just involves hydrogen-bond adsorption of graphene oxide with melamine sponge and subsequent two-step calcination. When VGOG/3DNCF is evaluated as anode for SIBs, the ultra-high oxygen content (16.4 at%) dominated by C=& nbsp;O groups renders VGOG/3DNCF much more active sites for Na+ storage, and the vertical growth structure of graphene on 3D carbon foam can effectively reduce the restacking of graphene and promote the rapid migration of Na+. As a result, VGOG/3DNCF anode delivers extraordinary Na+ storage ability with outstanding reversible capability (508.6 mAh g(-1) at 0.1 A g(-1)), superior rate performance (113.3 mAh g(-1) at 5.0 A g(-1)) as well as remarkable cycle stability (329.3 mAh g(-1) over 1000 cycles at 1.0 A g(-1)). The facile method together with the impressive electrochemical performances provide a new way to facilitate the application of graphene in SIBs.