Graphite

It are these properties which allow graphite to be used to draw with (using a pencil), as the friction against weak intermolecular forces on paper causes layers of graphite to rub off onto the paper. It is this layered structure and the weak bonding between the “sheets” that determines the soft slippery feel of graphite, thus, creating graphite’s self lubricating property. Being used a lubricant, graphite can be used at very high or low temperatures for many different

Flexible All Graphite Paper based Field Effect Transistor for motion detection using strain sensing Srinivasulu Kanaparthi, Sushmee Badhulika* Department of Electrical Engineering, Indian Institute of Technology Hyderabad, Hyderabad, 502285, India. *Corresponding author: E-mail: sbadh@iith.ac.in; Telephone: 040-23018443; Fax: 04023016032 Abstract Here we report the fabrication of a flexible all carbon field effect transistor (FET) using a low cost, recyclable and biodegradable cellulose paper as

Enabling Physics 1 & 2 - Investigative Research Assignment Question: What is the relationship between the percentage of Graphite (Carbon) in a lead pencil and the electrical resistance of the graphite in the lead pencil? Hypothesis: The prediction is that a higher concentration of Carbon in a pencil will produce a lower resistance due to Carbon being more conductive than Clay produced in lead pencils. Figure 1: Details of pencils used in the investigation. (2015). Enabling Physics 1 & 2 - Investigative

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it is also one of the most abundant elements in the world. It is a non-metal that is able to bond with itself to form a vast amount of compounds, some of which have very useful properties. The most well-known carbon compounds that come to mind are graphite and diamond due to their unique properties, the latter renowned for being the hardest substance in the world. Graphene is a two dimensional carbon allotrope, it is a layered material that can be formed into thin sheets. Each layer is made up of

public. Forms of graphene Graphene can exist in many forms such as bilayers, nanostripes, graphite oxides, ligand complex, fibre or 3D. ( figure 1) Generally speaking, graphene exists as a flat monolayer of the carbon atom that tightly packed together which form a two-dimensional honeycomb lattices. The thin layer honeycomb shaped graphene can be wrapped up or rolled up into 1D nanotubes or stacked into 3D graphite. ( Geim & Novoselov 2012).A different form of graphene has various type of function. For

1.3 Graphene structure, physical properties, and fabrication methods 1.3.1 Graphene structure In 2004, two scientists prepared the graphene, a single planar layer of graphite, which has a double carbon atoms bonds. Each carbon atom joins itself with three atoms by strong σ covalent bonds, the strong carbon-carbon bonding granted graphene a rigid structure. With four valence electrons, each carbon atom can contribute one unbounded electron to form π bonds above the plane of the carbon sheet. Graphene

Buckminsterfullerene or more commonly known as bucky-balls is one of the types of carbon allotropes. It is a spherical fullerene molecule containing 60 carbon atoms. The shape of a bucky ball resembles that of a typical soccer ball and the specific name for the structure is truncated icosahedron. It is formed of twenty hexagons and twelve pentagons with a carbon atom lying at each vertex. The name buckminsterfullerene was named after the inventor Buckminster fuller, because one of his designs of

used to explain how a mining company could go about entering into finding a graphite deposit and taking it into production Graphite: What is it? Graphite is a form of carbon which is an element. In graphite, the carbon atoms are joined together and arranged in layers. The links between the carbon atoms in the layer are strong, but the links between the layers are weak. The layers easily slip over each other. That's why graphite in a pencil is soft and you can see a mark when you write with it on paper

described further. The stability was further better-explained when the Hückel’s calculation method was applied and introduced to the icosahedron structure of C60 by Bochvar and Gal’pern [2]. The prediction of fullerene structure was discussed based on graphite balloon speculation made by David Jones using pseudonym of Daedalus in a journal, The Scientist [3]. This speculation was essentially describing the gas-phase carbon cluster in the form of geodesic cages which is applied to giant fullerenes compound