文献类型：期刊文献

英文题名：Nanoscale engineering of nitrogen-doped carbon nanofiber aerogels for enhanced lithium ion storage

作者：Ye, Guichao[1,2] Zhu, Xiaoyi[1] Chen, Shuai[3] Li, Daohao[1] Yin, Yafang[2] Lu, Yun[2] Komarneni, Sridhar[4] Yang, Dongjiang[1,5]

第一作者：Ye, Guichao

通信作者：Yang, DJ[1];Lu, Y[2];Yang, DJ[3]

机构：[1]Qingdao Univ, Collaborat Innovat Ctr Marine Biomass Fibers Mat, Sch Environm Sci & Engn, Qingdao 266071, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, Dept Wood Anat & Utilizat, Beijing 100091, Peoples R China;[3]Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China;[4]Penn State Univ, Mat Res Lab, Mat Res Inst, Dept Ecosyst Sci & Management, University Pk, PA 16802 USA;[5]Taiyuan Univ Technol, Minist Educ & Shanxi Prov, Key Lab Coal Sci & Technol, Taiyuan 030024, Peoples R China

年份：2017

卷号：5

期号：18

起止页码：8247-8254

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY A

收录：;EI(收录号：20172703896093);Scopus(收录号：2-s2.0-85021644058);WOS:【SCI-EXPANDED(收录号:WOS:000400983400005)】；

基金：This work was financially supported by the National Natural Science Foundation of China (No. 31500468, 51473081, and 51672143), and the National Non-profit Institute Research Grant of CAF (Grant CAFYBB2017ZX003).

语种：英文

外文关键词：Anodes - Bamboo - Bioconversion - Carbon nanofibers - Cellulose - Doping (additives) - Ions - Lithium-ion batteries - Nitrogen - Porosity

摘要：We developed a unique industrial-scale sustainable biomass conversion strategy for the synthesis of multifunctional, three-dimensional (3D) carbon nanofiber (CNF) aerogels with hierarchical porosity. The above aerogels were also highly nitrogen-doped through pyrolysis of bamboo cellulose. The important and critical part of our synthesis strategy was to assemble the nanofibers of cellulose (NFC) from bamboo to make aerogels of controlled porosity with a hierarchical porous structure. The as-prepared CNF aerogels with abundant chemical reaction sites and three-dimensional electron and ion transport pathways were found to be new high-performance anode materials for lithium-ion batteries (LIBs). In particular, the N-doped CNF aerogel prepared with 1 D fibers of 50 nm in diameter as building-blocks exhibited a high reversible capacity of 630.7 mA h g(-1) at 1 A g(-1), excellent rate capability (289 mA h g(-1) at 20 A g(-1)) and excellent cycling performance (651 mA h g(-1) at 1 A g(-1) after 1000 cycles) in LIBs.