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h ‐BN Nanosheets as 2D Substrates to Load 0D Fe 3 O 4 Nanoparticles: A Hybrid Anode Material for Lithium‐Ion Batteries
Author(s) -
Duan ZhiQiang,
Liu YiTao,
Xie XuMing,
Ye XiongYing,
Zhu XiaoDong
Publication year - 2016
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201501439
Subject(s) - anode , lithium (medication) , nanoparticle , materials science , ion , nanotechnology , chemical engineering , optoelectronics , chemistry , electrode , engineering , organic chemistry , medicine , endocrinology
h ‐BN, as an isoelectronic analogue of graphene, has improved thermal mechanical properties. Moreover, the liquid‐phase production of h ‐BN is greener since harmful oxidants/reductants are unnecessary. Here we report a novel hybrid architecture by employing h ‐BN nanosheets as 2D substrates to load 0D Fe 3 O 4 nanoparticles, followed by phenol/formol carbonization to form a carbon coating. The resulting carbon‐encapsulated h ‐BN@Fe 3 O 4 hybrid architecture exhibits synergistic interactions: 1) The h ‐BN nanosheets act as flexible 2D substrates to accommodate the volume change of the Fe 3 O 4 nanoparticles; 2) The Fe 3 O 4 nanoparticles serve as active materials to contribute to a high specific capacity; and 3) The carbon coating not only protects the hybrid architecture from deformation but also keeps the whole electrode highly conductive. The synergistic interactions translate into significantly enhanced electrochemical performances, laying a basis for the development of superior hybrid anode materials.