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What is Graphene?
Although carbon can form three-dimensional lattices by bonding with four other carbon atoms to form diamond, it can also form two-dimensional sheets (a sheet of paper has only two dimensions, for example) when it bonds to three other carbon atoms. These sheets are called graphene.
Researchers have only recently (2004) been successful in producing sheets of graphene for research purposes, though they all probably had a handy form of graphene in their pocket protectors. Common graphite is the material in pencil lead, and it’s composed of sheets of graphene stacked together. The sheets of graphene in graphite have a space between each sheet, as illustrated in the following figure, and the sheets are held together by the electrostatic force called van der Waals bonding.
Sheets of graphene held together by van der Waals bonding make graphene.
Graphene sheets are composed of carbon atoms linked in hexagonal shapes, as shown in the following figure, with each carbon atom covalently bonded to three other carbon atoms. Each sheet of graphene is only one atom thick and each graphene sheet is considered a single molecule. Graphene has the same structure of carbon atoms linked in hexagonal shapes to form carbon nanotubes, but graphene is flat rather than cylindrical.
Graphene has been touted as the "miracle material" of the 21st Century. Said to be the strongest material ever measured, an improvement upon and a replacement for silicon and the most conductive material known to man, its properties have sent the science world - and subsequently the media - into a spin.
So, put in to words that even I can understand, just what is graphene?
Graphene 101
1. Graphene is taken from graphite, which is made up of weakly bonded layers of carbon Graphene is composed of carbon atoms arranged in tightly bound hexagons just one atom thick
2. Three million sheets of graphene on top of each other would be 1mm thick The band structure of graphite was first theorised and calculated by PR Wallace in 1947, though for it to exist in the real world was thought impossible Due to the timing of this discovery, some conspiracy theorists have linked it to materials at the Roswell "crash site"
3. In 2004, teams including Andre Geim and Konstantin Novoselov demonstrated that single layers could be isolated, resulting in the award of the Nobel Prize for Physics in 2010
4. It is a good thermal and electric conductor and can be used to develop semiconductor circuits and computer parts. Experiments have shown it to be incredibly strong.
Read more: http://gardenofeaden.blogspot.com/2013/01/what-is-graphene.html#ixzz2Nqq...
http://en.wikipedia.org/wiki/Graphene
http://boingboing.net/2013/02/21/graphene-supercapacitors-could.html
http://physicsworld.com/cws/article/news/2012/dec/10/flexible-graphene-t...
http://www.wired.co.uk/news/archive/2012-10/11/graphene-roadmap
http://www.extremetech.com/tag/graphene
What is Graphene:
http://www.youtube.com/watch?v=EX8ClPVkD1g
Make Graphene Oxide by a Bucketload:
http://www.youtube.com/watch?v=lRDPZ8yLh04
Laserscribe Graphene made at Home:
http://www.youtube.com/user/ericgoeken/videos?view=0
How to make graphene:
http://www.youtube.com/watch?v=eD1bp8K6V9w
Future of Graphene:
http://www.youtube.com/watch?v=-zpbIOpZ14Y
File list
Video list:
* 1. Graphite oxide dispersion using a jewelry cleaner (Sonication)
* 2. Application of graphite oxide solution to PET substrate
* 3. Laserscribe graphene made at home
* 4. Laserscribe graphene made at home - update
* Future Applications of Graphene
* Graphene cleaning crude oil from bushes and grass
* Graphene Nano Layer On Insulated Wires - Keshe foundation
* Graphene Synthesis by Dry-Ice Method - NIU Video
* Graphene_ The Next Tech Revolution
* How to make graphene oxide by a bucketload part 1
* How to make graphene oxide by a bucketload part 2
* How to make graphene oxide by a bucketload - an update and making graphite intercalated compounds - part 3
* How to make graphene
* How_To_Make_Graphene
* Improved Synthesis of Graphene Oxide
* Large_Scale_CVD_Graphene_Transfer
* Magnesium burning inside dry ice (Graphene composites)
* Making graphene supercapacitors with a DVD writer
* Making_better_batteries_with_metal_oxide__graphene_composites
* Making_Graphene_101,_Ozyilmaz_Group
* Reduction and patterning of graphite oxide by camera flash
* stretchable graphene
* Use of Graphene to clean Crude oil spill
* What is Graphene
Text list:
* A green and ultrafast approach to synthesis scalable graphene
* AN IMPROVED METHOD FOR TRANSFERRING
* Atomic collapse in graphene
* Conversion of carbon dioxide to few-layer graphene (Magnesium/Dry Ice method)
* Dynamical Casimir effect in a Josephson metamaterial
* Effects of Spatial Dispersion on the Casimir Force between graphene
* Efficient and Large-Scale Synthesis of Few-Layered Graphene
* Emergence of superlattice Dirac points in Graphene on Hexagonal Boron Nitride
* Energy Gaps in Graphene Nanoribbons
* Finite temperature Casimir effect for graphene
* Four-dimensional graphene and chiral fermions
* Graphene - A Material That Multiplies the Power of Light
* Graphene - Magic of Flat Carbon
* Graphene and chiral fermions
* Graphene and Graphene Oxide Synthesis, Properties
* Graphene Oxide synthesis - Robert Murray-Smith
* Graphene, vortices and the index theorem
* Graphene_oxide_gets_green
* Nanotech Insights - Graphene-Article-Final1
* Hartman effect & Spin Precession of graphene
* Holographic fermions in D=3
* Hydrogen adsorption on graphene a first principles study
* Improved Synthesis of Graphene Oxide
* InTech-Synthesis_of_graphenes_with_arc_discharge_method
* Large Bandgap Opening Between Graphene Dirac Cones Induced by Na Adsorption onto an Superlattice
* Low-energy electron transmission imaging of clusters on free-standing graphene
* Many-body effects in van der Waals-Casimir interaction between graphene layers
* Multiparticle equations for interacting Dirac Fermions in graphene nanostructures
* One-pot synthesis of CuO nanoflower-decorated reduced graphene oxide
* Prospects for hydrogen storage in graphene
* SampleChapter_GrapheneSynApp
* Simple room-temperature preparation
* Smooth Electron Wave Guides in Graphene
* Substrate-Free Gas-Phase Synthesis of Graphene Sheets
* Substrate-induced band gap opening in epitaxial graphene
* Symmetry breaking by the sea of Dirac-Landau levels in graphene
* Synthesis of graphene-based nanosheets via chemical reduction
* Synthesis of Large-Area Graphene Layers on Poly-Nickel
* The Quantum Hall Effect in Graphene
* Top down method for Synthesis of Highly Conducting Graphene
* Transport in Graphene Nanoribbons
* Two-Dimensional Gas of Massless Dirac Fermions in Graphene
* Ultrafast, Dry Microwave Synthesis of Graphene Sheets
* US7623340-Nano-scaled graphene plate nanocomposites for supercapacitor electrodes
* US7662321-Nano-scaled graphene plate-reinforced composite materials and method of
* US7745047-21 7,745,047 Nano graphene platelet-base composite anode compositions for lithium ion batteries
* US7875219-Process for producing nano-scaled graphene platelet nanocomposite electrodes ...
* US7892514-Method of producing nano-scaled graphene and inorganic platelets and their ...
* US7999027-Pristine nano graphene-modified tires
* US8114375-Process for producing dispersible nano graphene platelets from oxidized graphite
* US8132746-Low-temperature method of producing nano-scaled graphene platelets and their
* US8216541B2-Process for producing dispersible and conductive nano graphene platelets from non-oxidized graphitic materials
* US8222190B2-Nano graphene-modified lubricant
* US8226801B2-Mass production of pristine nano graphene materials
* Zero-Energy states in graphene quantum dots and rings
Note: This study pack comprises a collection of theory, application & synthesis of graphene in video & text format. A wonder material of the 21st century. for those tinkerers & experimenters, dont miss out on this file pack.
Enjoy