Construction of MnS/MoS_(2) heterostructure on two-dimensional MoS_(2) surface to regulate the reaction pathways for high-performance Li-O_(2) batteries  

作　　者：Guoliang Zhang Han Yu Xia Li Xiuqi Zhang Chuanxin Hou Shuhui Sun Yong Du Zhanhu Guo Feng Dang 

机构地区：[1]Key Laboratory for Liquid-Solid Structure Evolution and.Processing of Materials(Ministry of Education),Shandong University,Jinan 250061,Shandong,China [2]School of Environmental and Material Engineering,Yantai University,Yantai 264005,Shandong,China [3]Institute National de la Recherche Scientifique,CentreÉnergie Matériaux et Télécommunications,Varennes,Québec J31S2,Canada [4]State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,Hunan,China [5]Integrated Composites Lab,Department of Mechanical and Construction Engineering,Northumbria University,Newcastle Upon Tyne,NE18ST,UK

出　　处：《Journal of Energy Chemistry》2024年第6期443-452,I0012,共11页能源化学（英文版）

基　　金：supported by the National Natural Science Foundation of China (52173286, 52207249);Major basic research project of Natural Science Foundation of Shandong Province (ZR2023ZD12);the State Key Laboratory of Marine Resource Utilization in South China Sea (Hainan University) (MRUKF2023013);Open Program of Guangxi Key Laboratory of Information Materials (221024-K)。

摘　　要：The inherent catalytic anisotropy of two-dimensional(2D) materials has limited the enhancement of LiO_(2) batteries(LOBs) performance due to the significantly different adsorption energies on 2D and edge surfaces.Tuning the adsorption strength in 2D materials to the reaction intermediates is essential for achieving high-performance LOBs.Herein,a MnS/MoS_(2) heterostructure is designed as a cathode catalyst by adjusting the adsorption behavior at the surface.Different from the toroidal-like discharge products on the MoS_(2) cathode,the MnS/MoS_(2) surface displays an improved adsorption energy to reaction species,thereby promoting the growth of the film-like discharge products.MnS can disturb the layer growth of MoS_(2),in which the stack edge plane features a strong interaction with the intermediates and limits the growth of the discharge products.Experimental and theoretical results confirm that the MnS/MoS_(2) heterostructure possesses improved electron transfer kinetics at the interface and plays an important role in the adsorption process for reaction species,which finally affects the morphology of Li_2O_(2),In consequence,the MnS/MoS_(2) heterostructure exhibits a high specific capacity of 11696.0 mA h g^(-1) and good cycle stability over 1800 h with a fixed specific capacity of 600 mA h g^(-1) at current density of100 mA g^(-1) This work provides a novel interfacial engineering strategy to enhance the performance of LOBs by tuning the adsorption properties of 2D materials.

关 键 词：Li-O_(2)batteries Two-dimensional materials MnS/MoS_(2)heterostructure Edge plane Adsorption behavior 

分 类 号：TM911.41[电气工程—电力电子与电力传动] O647.3[理学—物理化学] TQ426[理学—化学]