文献类型：期刊文献

英文题名：In situ growth of amorphous Fe2O3 on 3D interconnected nitrogen-doped carbon nanofibers as high-performance anode materials for sodium-ion batteries

作者：Shi, Lu[1,2]; Li, Ying[1]; Zeng, Fanglei[3]; Ran, Sijia[1]; Dong, Chengyu[4]; Leu, Shao-Yuan[4]; Boles, Steven T.[1]; Lam, Kwok Ho[1]

第一作者：Shi, Lu;史璐

通讯作者：Lam, Kwok Ho

机构：[1] Department of Electrical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong; [2] College of Chemistry and Chemical Engineering, Xinxiang University, Henan, Xinxiang, 453003, China; [3] School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou, 213164, China; [4] Department of Civil & Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong

第一机构：Department of Electrical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong

年份：2019

卷号：356

起止页码：107-116

外文期刊名：Chemical Engineering Journal

收录：EI(收录号：20183705803406);Scopus(收录号：2-s2.0-85052999672)

语种：英文

外文关键词：Anodes - Buffer storage - Calculations - Carbon carbon composites - Carbon nanofibers - Doping (additives) - Hematite - Metal ions - Nitrogen

摘要：In this work, a novel porous amorphous Fe2O3/nitrogen-doped carbon composite as a promising anode material for sodium-ion batteries has been fabricated by in situ growing amorphous Fe2O3 on 3D interconnected nitrogen-doped carbon nanofibers. The as-prepared composite exhibits superior sodium storage properties. It delivers a high reversible capacity of 408 mA h g?1 after 350 cycles at a current density of 100 mA g?1 and a good rate capability of 183 mA h g?1 at 3 A g?1. The excellent electrochemical performance is owing to the synergistic effects of the amorphous structure of Fe2O3 and the 3D interconnected nitrogen-doped carbon network with high nitrogen doping content (10 atom%), which do not only relieve the internal stress of the electrode and accommodate more electrochemical active sites for Na+ storage, but also buffer the volume changes of amorphous Fe2O3 as well as facilitate the electronic and ionic transportation during cycling. ? 2018 Elsevier B.V.