近日，实验室韩丹阳同学、尹红老师关于用C₂N₂软模板辅助法制备了氮掺杂碳包覆的CoS3纳米颗粒（N-C@CoS₄）的论文发表在Carbon Letters.

As a promising anode for sodium-ion batteries (SIBs), cobalt sulfide (CoS₂) has attracted extensive attention due to its high theoretical capacity, easy preparation, and superior electrochemical activity. However, its intrinsic low conductivity and large volume expansion result in poor cycling ability. Herein, nitrogen-doped carbon-coated CoS₂ nanoparticles (N-C@CoS₂) were prepared by a C₃N₄ soft-template-assisted method. Carbon coating improves the conductivity and prevents the aggregation of CoS₂ nanoparticles. In addition, the C₃N₄ template provides a porous graphene-like structure as a conductive framework, affording a fast and constant transport path for electrons and void space for buffering the volume change of CoS₂ nanoparticles. Benefitting from the superiorities, the Na-storage properties of the N-C@CoS₂ electrode are remarkably boosted. The advanced anode delivers a long-term capacity of 376.27 mAh g^-1 at 0.1 A g^-1 after 500 cycles. This method can also apply to preparing other metal sulfide materials for SIBs and provides the relevant experimental basis for the further development of energy storage materials.

论文题目：Soft-template-assisted synthesis of N-doping layered CoS₂ nanoparticles as an advanced anode for sodium-ion batteries.

论文作者：Danyang Han,Guo Yu,An Liu,Gangyong Li,Wei Wang,Binghong He,Zhaohui Hou,Hong Yin.