AUTHOR=Wei Chunguang , Hou Zhidong , Sun Huanhuan , Wang Jian-Gan 

TITLE=Ultrafine MoS2 Nanosheets Vertically Patterned on Graphene for High-Efficient Li-Ion and Na-Ion Storage

JOURNAL=Frontiers in Chemistry

VOLUME=9

YEAR=2021

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2021.802788

DOI=10.3389/fchem.2021.802788

ISSN=2296-2646

ABSTRACT=<p>Hierarchically two-dimensional (2D) heteroarchitecture with ultrafine MoS<sub>2</sub> nanosheets vertically patterned on graphene is developed by using a facile solvothermal method. It is revealed that the strong interfacial interaction between acidic Mo precursors and graphene oxides allows for uniform and tight alignment of edge-oriented MoS<sub>2</sub> nanosheets on planar graphene. The unique sheet-on-sheet architecture is of grand advantage in synergistically utilizing the highly conductive graphene and the electroactive MoS<sub>2</sub>, thus rendering boosted reaction kinetics and robust structural integrity for energy storage. Consequently, the heterostructured MoS<sub>2</sub>@graphene exhibits impressive Li/Na-ion storage properties, including high-capacity delivery and superior rate/cycling capability. The present study will provide a positive impetus on rational design of 2D metal sulfide/graphene composites as advanced electrode materials for high-efficient alkali–metal ion storage.</p>