Seminar: "3D graphene networks from carbide-derived carbons", by Dr. Carla de Tomas (Department of Physics and Astronomy, Curtin University, Australia)
June 27, 2018 IMN Seminar Room, 12PM
Translating the excellent mechanical properties of graphene into a 3D network for real applications is an open challenge attracting the interest of a broad scientific community, such as chemists, engineers, physicist and materials scientists. Conventional routes explore the self-assembly process of graphene flakes into a 3D architecture; however, this process usually yields low-density structures and often the structures cannot undergo extreme deformations without brittle fracture. We have performed atomistic simulations to study the microstructure and the mechanical properties of nanoporous carbons obtained from carbides (so-called carbide-derived carbons). We show that there is a direct relationship between elasticity and pore topology, with density and temperature driving significant changes in the material. The simulations show how pores develop and become enclosed by continuous graphene layers, making them desirable as an alternative route to achieve dense and tunable 3D graphene networks.
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