Simulation of Co3O4 nanocubes adhesion on graphene surface
Vladislav V. Shunaev, 1 Olga E. Glukhova 1,2 1 Saratov State University, Saratov, Russia 2 Sechenov University, Moscow, Russia
Abstract
By the means of the self-consistent-charge density-functional tight-binding (SCC DFTB) method the process of graphene/Co3O4 composite formation was simulated. It was found that attachment of Co3O4 nanocubes to preliminary oxidized graphene with subsequent etching of oxygen is more energetically favorable than attachment of Co3O4 nanocubes to pure graphene. But the win in the quantum capacitance in the case of pure graphene is in the range of 300÷500 F/g in dependence of applied voltage. The obtained result may indicate on the need in modification of current methods of graphene/Co3O4 synthesis to improve its application in supercapacitors and lithium-ion batteries.
Speaker
Vladislav Shunaev
Saratov State University
Russia
Discussion
Ask question
