Graphene oxide powder formerly called graphite oxide, graphitic oxide or graphitic acid, is a compound of carbon, oxygen, and hydrogen in variable ratios, obtained by treating graphite with strong oxidizers.The maximally oxidized bulk product is yellow solid with C:O ratio between 2.1 and 2.9. It consists of loosely-bound layers, each being a two-dimensional arrangement of carbon atoms in the “chicken-wire” (graphene) pattern, with epoxide groups (bridging oxygen atoms) and hydroxyl groups attached to both sides.Graphene oxide has attracted much interest recently as a possible route for the large-scale production and manipulation of graphene, a material with extraordinary electronic properties. Graphene oxide itself is an insulator, almost a semiconductor, with differential conductivity between 1 and 5 x 10-3 S/cm at a bias voltage of 10 V. However, being hydrophilic, graphene oxide disperses readily in water, breaking up into macroscopic flakes, mostly one layer thick. In theory, chemical reduction of these flakes would yield a suspension of graphene flakes.
These values are much greater than the oxide’s, but still a few orders of magnitude lower than those of pristine graphene. Inspection with the atomic force microscope shows that the oxygen bonds distort the carbon layer, creating a pronounced intrinsic roughness in the oxide layers which persists after reduction. These defects also show up in Raman spectrum of graphene oxide.Reduction methods have been developed that do not use chemical solutions and can be performed at room temperature. a consumer camera flash has been shown to decompose graphene oxide to graphene.
Based on the graphite oxide aperture adjustable nano porous materials preparation methods, to natural flake graphite as raw material, strong sulfuric acid and sodium nitrate for intercalated agent and potassium permanganate as the oxidant of the thermal and chemical intercalated processing; Then will get flake graphite oxide to ion solution after the freeze-drying get flake graphite oxide powder, or use of polarity of the organic solvent to flake graphite oxide to ion solution for solvent for flake graphite oxide organic solvent suspension; , then use direct modification method and construct the supramolecular method of flake graphite oxide powder or flake graphite oxide organic solvent in modified suspension, get flake graphite oxide based on the pore diameter of adjustable nano porous materials; The party of the nano porous materials legal system through covalent bond or metal coordination key connection building, pore structure stability, the use of the modifying molecule range, can be in a wide range of adjust its pore size.
Read more: graphite oxide powder for sale
These values are much greater than the oxide’s, but still a few orders of magnitude lower than those of pristine graphene. Inspection with the atomic force microscope shows that the oxygen bonds distort the carbon layer, creating a pronounced intrinsic roughness in the oxide layers which persists after reduction. These defects also show up in Raman spectrum of graphene oxide.Reduction methods have been developed that do not use chemical solutions and can be performed at room temperature. a consumer camera flash has been shown to decompose graphene oxide to graphene.
Based on the graphite oxide aperture adjustable nano porous materials preparation methods, to natural flake graphite as raw material, strong sulfuric acid and sodium nitrate for intercalated agent and potassium permanganate as the oxidant of the thermal and chemical intercalated processing; Then will get flake graphite oxide to ion solution after the freeze-drying get flake graphite oxide powder, or use of polarity of the organic solvent to flake graphite oxide to ion solution for solvent for flake graphite oxide organic solvent suspension; , then use direct modification method and construct the supramolecular method of flake graphite oxide powder or flake graphite oxide organic solvent in modified suspension, get flake graphite oxide based on the pore diameter of adjustable nano porous materials; The party of the nano porous materials legal system through covalent bond or metal coordination key connection building, pore structure stability, the use of the modifying molecule range, can be in a wide range of adjust its pore size.
Read more: graphite oxide powder for sale
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