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Diamond-Graphene Composite Nanostructures

Németh, P; McColl, K; Smith, RL; Murri, M; Garvie, LAJ; Alvaro, M; Pécz, B; ... McMillan, PF; + view all (2020) Diamond-Graphene Composite Nanostructures. Nano Letters 10.1021/acs.nanolett.0c00556. (In press). Green open access

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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 sp^{3} and sp^{2} 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 sp^{3}- and sp^{2}-bonded nanodomains.

Type: Article
Title: Diamond-Graphene Composite Nanostructures
Location: United States
Open access status: An open access version is available from UCL Discovery
DOI: 10.1021/acs.nanolett.0c00556
Publisher version: https://doi.org/10.1021/acs.nanolett.0c00556
Language: English
Additional information: © 2020 American Chemical Society. This is an open access article published under a Creative Commons Attribution (CC-BY) License (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html).
Keywords: Nanostructures, Carbon, Chemical structure, Physical and chemical processes, Anode materials
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Earth Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/10096807
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