首页|Freestanding 1T MoS2@MXene hybrid film with strong interfacial interaction for highly reversible zinc ions storage

Freestanding 1T MoS2@MXene hybrid film with strong interfacial interaction for highly reversible zinc ions storage

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Aqueous zinc ion batteries(AZIBs)are now gaining widespread attention because of their cost-effectiveness,intrinsic safety,and high theoretical capacity.Nevertheless,it is still crucial to exploit high-performance electrode materials.Herein,the freestanding 1T MoS2@Mxene hybrid films(MMHF)were synthesized and directly served as the cathode of AZIBs.The freestanding MMHF exhibited the hierar-chical 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 af-ter 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 MoS2 and MXene,high conductivity,and low Zn2+diffusion barrier.This work provides a new viewpoint for designing freestanding transition metal disulfides(TMDs)-MXene hybrid film electrodes for AZIBs.

Aqueous zinc ion batteriesFreestanding cathodeInterfacial interaction1T MoS2MXene

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

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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

School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China

Natural Science Foundation of Hebei ProvinceOpen Foundation of State Key Laboratory of Chemical EngineeringChina Postdoctoral Science FoundationNational Natural Science Foundation of China

B2022202059SKL-ChE-22B052023M740969U20A20153

2024

10.1016/j.jmst.2023.12.015

材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCD
影响因子：0.657
ISSN：1005-0302
年,卷(期)：2024.188(21)
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