Diamond-graphene composite nanostructures

Péter Németh; Kit Mccoll; Rachael L. Smith; Mara Murri; Laurence A.J. Garvie; Matteo Alvaro; Béla Pécz; Adrian P. Jones; Furio Corà; Christoph G. Salzmann; Paul F. Mcmillan

doi:10.1021/acs.nanolett.0c00556

Diamond-graphene composite nanostructures

Péter Németh, Kit Mccoll, Rachael L. Smith, Mara Murri, Laurence A.J. Garvie, Matteo Alvaro, Béla Pécz, Adrian P. Jones, Furio Corà, Christoph G. Salzmann, Paul F. Mcmillan

CLAS-NS: Meteorite Studies, Center for

Research output: Contribution to journal › Article

1 Scopus citations

Abstract

The search for new nanostructural topologies composed of elemental carbon is driven by technological opportunities as well as the need to understand the structure and evolution of carbon materials formed by planetary shock impact events and in laboratory syntheses. We describe two new families of diamond-graphene (diaphite) phases constructed from layered and bonded sp³ and sp² nanostructural units and provide a framework for classifying the members of this new class of materials. The nanocomposite structures are identified within both natural impact diamonds and laboratory-shocked samples and possess diffraction features that have previously been assigned to lonsdaleite and postgraphite phases. The diaphite nanocomposites represent a new class of high-performance carbon materials that are predicted to combine the superhard qualities of diamond with high fracture toughness and ductility enabled by the graphitic units and the atomically defined interfaces between the sp³- and sp²-bonded nanodomains.

Original language	English (US)
Pages (from-to)	3611-3619
Number of pages	9
Journal	Nano Letters
Volume	20
Issue number	5
DOIs	https://doi.org/10.1021/acs.nanolett.0c00556
State	Published - May 13 2020

Keywords

Density functional theory calculations
Graphene-diamond nanocomposite
High-resolution tem
Mechanical properties
Sp- and sp-bonded nanomaterials

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanical Engineering

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10.1021/acs.nanolett.0c00556

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Németh, P., Mccoll, K., Smith, R. L., Murri, M., Garvie, L. A. J., Alvaro, M., Pécz, B., Jones, A. P., Corà, F., Salzmann, C. G., & Mcmillan, P. F. (2020). Diamond-graphene composite nanostructures. Nano Letters, 20(5), 3611-3619. https://doi.org/10.1021/acs.nanolett.0c00556

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