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Nanoparticle Cookies Derived from Metal‐Organic Frameworks: Controlled Synthesis and Application in Anode Materials for Lithium‐Ion Batteries
Author(s) -
Wang Shuhai,
Chen Minqi,
Xie Yanyu,
Fan Yanan,
Wang Dawei,
Jiang JiJun,
Li Yongguang,
Grützmacher Hansjörg,
Su ChengYong
Publication year - 2016
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201600106
Subject(s) - anode , materials science , nanoparticle , calcination , lithium (medication) , metal organic framework , graphite , chemical engineering , carbon fibers , nanocrystal , porosity , nanotechnology , metal , electrode , catalysis , adsorption , composite number , chemistry , composite material , organic chemistry , metallurgy , medicine , endocrinology , engineering
The capacity of anode materials plays a critical role in the performance of lithium‐ion batteries. Using the nanocrystals of oxygen‐free metal‐organic framework ZIF‐67 as precursor, a one‐step calcination approach toward the controlled synthesis of CoO nanoparticle cookies with excellent anodic performances is developed in this work. The CoO nanoparticle cookies feature highly porous structure composed of small CoO nanoparticles (≈12 nm in diameter) and nitrogen‐rich graphitic carbon matrix (≈18 at% in nitrogen content). Benefiting from such unique structure, the CoO nanoparticle cookies are capable of delivering superior specific capacity and cycling stability (1383 mA h g −1 after 200 runs at 100 mA g −1 ) over those of CoO and graphite.