超分子配位化学研究所
Institute of Supramolecular Coordination Chemistry
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Low temperature, atmospheric pressure for synthesis of a new carbon Eneyne and application in Li storage

 Zhiyu Jia, Zicheng Zuo, Yuanping Yi, Huibiao Liu, Dan Li, Yongjun Li, and Yulian Li*


Abstract:Carbon Ene-yne (CEY), a novel two-dimensional full carbon material, was synthesized from tetraethynylethene.Compared with the traditional preparation method of carbon materials, CEY was synthesized by chemical method in solvent-phase under mild condition (low temperature, atmospheric pressure). Diyne of CEY were connected through vinyl groups which is help for π-electron transition, thus this new material exhibits excellent electronic property. Small band gap of 0.05 eV was predicted for CEY, and high conductivity of CEY film is up to 1.4×10−2 S/m which facilitates its application in electronic devices. Lithium-ion batteries featuring CEY-based electrode exhibit excellent electrochemical performance, including high specific capacities, outstanding rate performances, and a long cycle lives. We obtained a much high and reversible capacities of up to 410 mA h/g even after a long-term cycling at a high current density of 748 mA/g. Additionally, prepared by our mild solventphase chemical method, CEY might be a new star as a versatile materials for many electrochemical applications.


文章链接:j.nanoen.2017.01.049.pdf