文章基本信息

标题：In situ catalytic growth of large-area multilayered graphene/MoS2 heterostructures
本地全文：下载
作者：Wei Fu ; Fei-Hu Du ; Juan Su 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2015
卷号：4
期号：1
DOI：10.1038/srep04673
语种：English
出版社：Springer Nature
摘要：Stacking various two-dimensional atomic crystals on top of each other is a feasible approach to create unique multilayered heterostructures with desired properties. Herein for the first time, we present a controlled preparation of large-area graphene/MoS₂ heterostructures via a simple heating procedure on Mo-oleate complex coated sodium sulfate under N₂ atmosphere. Through a direct in situ catalytic reaction, graphene layer has been uniformly grown on the MoS₂ film formed by the reaction of Mo species with S pecies, which is from the carbothermal reduction of sodium sulfate. Due to the excellent graphene “painting” on MoS₂ atomic layers, the significantly shortened lithium ion diffusion distance and the markedly enhanced electronic conductivity, these multilayered graphene/MoS₂ heterostructures exhibit high specific capacity, unprecedented rate performance and outstanding cycling stability, especially at a high current density, when used as an anode material for lithium batteries. This work provides a simple but efficient route for the controlled fabrication of large-area multilayered graphene/metal sulfide heterostructures with promising applications in battery manufacture, electronics or catalysis.