The graphite layer structure can be folded and bent into balls and tubes providing the number of carbon atoms in the sheet is large enough. What is the Structure of Graphite? Materials needed: - A piece of paper - A graphite pencil (not the #2 pencils you used at school when you were a kid, but what “artists” use that’s pure graphite. The sheets align such that their two-dimensional hexagonal lattices are stag-gered, either in an ABAB pattern or an ABCABC pat-tern. The rings have many layers of particles. The layers are called graphene sheets. When you come across carbon as a reactant or electrode, carbon means graphite not diamond. top. To begin, let’s go back to the root of Organic Chemistry. It can be written C (gr) but is usually written as just C. The structure of graphite consists of many flat layers of hexagons. 1: In-plane structure of graphite and reciprocal lattice vectors [1]. So any discussion of graphite must begin with the “structure and bonding” within a carbon material in order to understand why a particular carbon behaves the way it does. Fullerenes. Diamond is trans-formed to graphite above 1500°C (Figure 1-4). Graphite is said to exhibit low electrical conductivity with a low density of about 2.26 g/cm3. Click on the diagram at the right to see the layers. The ABAB … The strength of the sigma bond in carbon is also illustrated by the high hardness of diamond. Uses and Applications: Graphite powder is utilized as a lubricant in the form of dispersion material or powder. Atomic Structure. The ideal graphite structure is shown in Figure 1-5. In fact, it is probably the strongest 2 dimensional network structure known, and is the structural backbone of all carbon/graphite fibers, and carbon nano-tubes. ∗Electronic address: dodd@mit.edu, amcc@mit.edu, mook-erji@mit.edu, spacing between sheets c = 6.71˚A. STRUCTURE Thermodynamically, graphite at atmospheric pressure is the more stable form of carbon. Graphite circuits are a fun and potentially useful trick to create paper thin circuits that can power electronics, although they work best for LED’s, due to the low power consumption and inefficiency of the circuit. The structure of graphite consists of a succession of layers parallel to the basal plane of hexagonally linked carbon atoms. mensional structure of graphite is formed with a lattice FIG. The carbon atoms in the Graphite structure are sp2 hybridized and are directed in the same plane thus forming hexagonal rings. These balls and tubes (bucky balls and nano tubes) have all been developed from the discovery by Kroto of spherical molecules consisting of 60 carbon atoms (and greater).