Freestanding 1T MoS_(2)@MXene hybrid film with strong interfacial interaction for highly reversible zinc ions storage  

作　　者：Haonan Zhai Huibin Liu Yufen Zhang Jinjin Wen Wenyue Yang Huiting Xu Xiaoteng Yan Wenchao Peng Jiapeng Liu 

机构地区：[1]School of Chemical Engineering and Technology,National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization,Hebei University of Technology,Tianjin 300130,China [2]School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China

出　　处：《Journal of Materials Science & Technology》2024年第21期183-190,共8页材料科学技术（英文版）

基　　金：supported by the Natural Science Foundation of Hebei Province(No.B2022202059);the Open Foundation of State Key Laboratory of Chemical Engineering(N o.SKL-ChE-22B05);the China Postdoctoral Science Foundation(No.2023M740969);the National Natural Science Foundation of China(No.U20A20153).

摘　　要：Aqueous zinc ion batteries(AZIBs)are now gaining widespread attention because of their costeffectiveness,intrinsic saf ety,and high theoretical capacity.Nevertheless,it is still crucial to exploit highperformance electrode materials.Herein,the freestanding 1T MoS_(2)@Mxene hybrid films(MMHF)were synthesized and directly served as the cathode of AZIBs.The freestanding MMHF exhibited the hierarchical layer structure with excellent conductivity and strong interfacial interaction,which promoted the exposure of more active sites and the transfer of electrons/ions.Consequently,the MMHF displayed a high specific capacity of 270 mAh g^(-1)(at 0.1 A g^(–1))and good rate performance.Impressively,even after 2500 cycles under 10 A g^(-1),the freestanding MMHF cathode contributed a superior specific capacity of 108 mAh g^(-1)with an outstanding capacity retention rate of 94.7%.Meanwhile,the energy storage mechanism of the MMHF electrode was also elucidated through ex-situ characterizations.Furthermore,the density functional theory(DFT)computations revealed the strong interfacial interactions between 1T MoS_(2)and MXene,high conductivity,and low Zn^(2+)diffusion barrier.This work provides a new viewpoint for designing freestanding transition metal disulfides(TMDs)-MXene hybrid film electrodes for AZIBs.

关 键 词：Aqueous zinc ion batteries Freestanding cathode Interfacial interaction 1T MoS_(2) MXene 

分 类 号：TB43[一般工业技术]