Chem. J. Chinese Universities ›› 2018, Vol. 39 ›› Issue (1): 19.doi: 10.7503/cjcu20170551

• Articles: Inorganic Chemistry • Previous Articles     Next Articles

Synthesis of Organodiphosphonate MOFs-derived Ni2P/C Composite

XU Dan1, XIAO Shanshan2, WU Pan2, PAN Ying1, CHEN Lihua2, SU Baolian2, XUE Ming1,*(), QIU Shilun1   

  1. 1. College of Chemistry, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
    2. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
  • Received:2017-08-10 Online:2018-01-10 Published:2017-12-19
  • Contact: XUE Ming E-mail:xueming@jlu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.21390394, 21571076, 21671155) and the Open Projects of State Key Laboratory of Safety and Control for Chemicals, China(No.SKL-038)

Abstract:

Ni and organodiphosphonate-based metal organic framework(Ni-MOF) was synthesized under hydrothermal condition using p-xylylenediphosphonate as the organic ligand. Then, Ni-MOF was selected to prepare the amorphous carbon coated Ni2P composite materials by facile method. The composite material retained the lamellate shape of the precursor, and the BET surface area reached 202 m2/g. The Ni2P nanoparticles in the composites had good crystallinity, and the particles were homogeneous and had no reunion. In the performance of lithium ion battery, the Ni2P/C composite structure improved the electron and ion conductivity of the material while reducing the volume expansion of the material, thus improving the electrochemical properties of the material. The first charge and discharge capacity of Ni2P/C composite material were 247 and 226 mA·h·g-1, respectively, coulombic efficiency can reach 91.7%, and the coulombic efficiency reaches 100% after 200 cycles.

Key words: Metal-organic framework, Carbonization, Ni2P/C Composite, Lithium ion battery

CLC Number: 

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