首页 | 本学科首页   官方微博 | 高级检索  
     


Nanoparticle Cookies Derived from Metal‐Organic Frameworks: Controlled Synthesis and Application in Anode Materials for Lithium‐Ion Batteries
Authors:Shuhai Wang  Minqi Chen  Yanyu Xie  Yanan Fan  Dawei Wang  Ji‐Jun Jiang  Yongguang Li  Hansjörg Grützmacher  Cheng‐Yong Su
Affiliation:1. Lehn Institute of Functional Materials, School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou, China;2. Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
Abstract: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.
Keywords:anode  calcination  lithium‐ion batteries  metal‐organic frameworks  nanoparticles
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号