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Bio‐Inspired Rose‐Like Bi@Nitrogen‐Enriched Carbon towards High‐Performance Lithium‐Ion Batteries
Author(s) -
Lan JinLe,
Jin Yuqiang,
Qin Chengjie,
Yu Yunhua,
Yang Xiaoping
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201701291
Subject(s) - nanocomposite , materials science , anode , carbon fibers , lithium (medication) , carbonization , chemical engineering , electrochemistry , hydrothermal circulation , nitrogen , nanoparticle , hydrothermal carbonization , doping , coating , nanotechnology , composite number , electrode , composite material , chemistry , scanning electron microscope , organic chemistry , optoelectronics , medicine , endocrinology , engineering
Rose‐like Bi@N‐doped carbon nanocomposite was fabricate by a facile hydrothermal method, followed by polydopamine coating for different time and subsequent carbonization for the first time. Structural and morphological characterization shows that Bi@N‐doped carbon nanocomposite have a homogeneous rose‐like structure, with crystallized Bi nanoparticles embedded homogeneously in the carbon matrix. The optimal Bi@N‐doped carbon nanocomposite used as anode for rechargeable lithium‐ion batteries (LIBs) presents a reversible capacity of 712 mAh g −1 for initial cycle at a current density of 200 mA g −1 and exhibits outstanding cyclability with a capacity of 535 mAh g −1 after 450 cycles at 200 mA g −1 . The outstanding electrochemical performance of the Bi@N‐doped carbon nanocomposite can be ascribed to the synergetic effects of various factors including the unique rose‐like structure, nano‐sized Bi particles and nitrogen doping carbon matrices.