期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 16, 期 1, 页码 88-94出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3cp53343c
关键词
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资金
- Research Grants Council of the Hong Kong Special Administrative Region, China [9041674, CityU 118411]
- China National Natural Science Foundation [11172253]
- Scientific Research Fund of Hunan Provincial Education Department, China [12A001]
- Hunan Provincial Natural Science Foundation of China [14JJ2076]
- Construct Program of the Key Discipline in Hunan Province and Aid Program for Science
- Technology Innovative Research Team in Higher Educational Institutions of Hunan Province, China
The molecular dynamics was employed to study the structure stability and high-temperature distortion resistance of a trilayer complex formed by a monolayer graphene sandwiched in bilayer boron nitride nanosheets (BN-G-BN) and graphenes (G-G-G). The investigation shows that the optimal interlayer distances are about 0.347 nm for BN-G-BN and 0.341 nm for G-G-G. Analysis and comparison of the binding energy, van der Waals interactions between layers and radial distribution function (RDF) revealed that the BN-G-BN achieves a more stable combined structure than G-G-G. The interlayer graphene in the trilayer complex nanosheets, especially the graphene in BN-G-BN, is more integrated than monolayer graphenes in a crystal structure. The structures at high temperature of 1500 K show that the BN-G-BN exhibits less distortion than G-G-G; especially, fixing the atomic positions on up-down layers can obviously further reduce structural deformation of interlayer graphene. The result further indicates that the high-temperature distortion resistance of interlayer graphene in the trilayer complex is related to both material type and conditions of constraints at the up-down layers.
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