Document Type : Reasearch Paper
Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Indonesia, INDONESIA. Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sriwijaya University, INDONESIA.
Graphite oxide constitutes carbon network with oxygen atoms both on hexagonal arrangement and the edge sites. Structural and electronic properties for graphite-oxygen complexes have been explored using ﬁrst-principles total-energy calculations within the local density approximation (LDA). Band structures and density of states for the propose carbon 3D models are reported. A ﬁnite energy gap and planarity of graphene layer emerges for the oxygen-functionalized graphite, therefore its value varies with the ratio of carbon to oxygen and sites on carbon network.