Study on colloidal synthesis of ZnS nanospheres embedded in reduced graphene oxide materials for sodium-ion batteries and energy storage mechanism
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초록

With growing demands for large-scale energy storage, metal sulfides have received great attention due to their high theoretical capacity as anode materials for sodium-ion batteries (SIBs). However, metal sulfides have a problem of poor stability. Thus, it is important to find suitable solutions. In this work, uniform ZnS nanospheres (ZnS NSs) are synthesized through a wet chemical method. And then, by compounding with reduced graphene oxide (rGO), ZnS NSs@rGO are synthesized in which ZnS NSs are evenly distributed on rGO. When we evaluate the cycle performance, ZnS NSs@rGO deliver a high discharge capacity of 634.6 mA h g−1 at a current density of 0.5 Ag−1 after 1000 cycles. Through charge/discharge processes of in-situ XRD analysis, we confirm the sodiation/desodiation mechanism of ZnS NSs@rGO. © 2023 The Authors

키워드

AnodeIn-situ XRDReduced graphene oxideSodium-ion batteriesZinc sulfidePERFORMANCE ANODE MATERIALNA-IONLITHIUM-IONELECTROCHEMICAL PERFORMANCESHIGH-CAPACITYDOPED CARBONCOMPOSITELINANOPARTICLESCHALLENGES
제목
Study on colloidal synthesis of ZnS nanospheres embedded in reduced graphene oxide materials for sodium-ion batteries and energy storage mechanism
저자
Jin, Y.Seong, H.Moon, J.H.Lee, S.Y.Kim, S.K.Yang, M.Lee, J.B.Cho, S.Y.Choi, J.
DOI
10.1016/j.jallcom.2023.169076
발행일
2023-05
유형
Article
저널명
Journal of Alloys and Compounds
943