Skip to main content

Reduced Graphene Oxide and Applications

Graphene oxide is a unique material that is a single monomolecular layer of graphite with various oxygen containing functionalities such as epoxide, carbonyl, carboxyl and hydroxyl groups.
When the electrically insulating graphene oxide is reduced, Reduced Graphene Oxide (rGO) (S.A:1562m2/g, 2-5 layers) formed resembles graphene but contains residual oxygen and other heteroatoms as well as structural defects.
Graphene oxide and reduced graphene oxide can be used in electronic devices, nanocomposite materials, polymer composite materials, energy storage, biomedical applications and catalysis. When we compare graphene oxide and reduced graphene oxide we can see some differences between them. The advantage of reduced graphene oxide has over graphene is that it can be stored longer without agglomeration. Reduced graphene oxide is more stable in organic solvents. Also reduced graphene oxide is conductive whereas graphene oxide is not conductive and isn’t as strong.
Reduced graphene oxides has an important role in electronics. Reduced graphene oxide can be used in light emitting diodes and solar cell devices. For both of these materials visible light transparent electrodes are so important. Using reduced graphene oxide as a transparent electrode is a convenient alternative to other transparent electrodes for these devices. In addition to being a transparent electrode, reduced graphene oxide has been used as a hole transport layer in polymer solar cells and LEDs.
When we look at the other application areas of reduced graphene oxide we can see it can be used as high capacity energy storage in lithium ion batteries. In these applications, electrically insulating metal oxide nanoparticles are adsorbed onto reduced graphene oxide to increase the performance of these materials in batteries. So it can be said that the high surface area reduced graphene oxide is useful as an energy storage material in supercapacitors.
Reduced graphene oxides can also be used in biosensors. In many researches reduced graphene oxide have been used as components in several systems designed to detect biologically relevant molecules.
Labels:

Comments

Post a Comment

Popular posts from this blog

Molybdenum Trioxide Nanoparticles/Nanopowder and Applications

General Information about Molybdenum Trioxide                                                     Molybdenum trioxide is chemical compound with the formula MoO3. Its chief application is as an oxidation catalyst and as a raw material for the production of molybdenum metal.  Molybdenum Trioxide  is a very light blue powder. Molybdenum Trioxide Nanoparticles/Nanopowder and Their Applications                                                    Like many  nanoparticles/nanopowder , Molybdenum Trioxide nanoparticles/nanopowder are used as catalysts. These catalysis reactions include hydrogenation catalysis and cracking catalysis. Molybdenum Trioxide nanoparticles/  nanopowder are useful for...
Post a Comment
Read more
Carbon Nanotubes Specifications and Properties Carbon Nanotubes, simply CNTs, are allotropes of carbon with a round and hollow nanostructure. These barrel shaped carbon molecules have crucial properties, which are significant for nanotechnology, hardware, optics and other different fields of materials science and innovation. The carbon nanotube’s excellent quality as a strong and firm material laid the basis on many applications. Not to mention carbon nanotubes exceptional heat conductivity, electrical and mechanical properties, Carbon Nanotubes are used as additives to diverse auxiliary materials. In terms of rigidity and flexibility Carbon Nanotubes are the stiffest and strongest materials. These quality outcomes from the covalent sp2 bonds framed between the individual carbon molecules. Unlike Graphene , Carbon Nanotubes are either conductive or semiconducting along the tubular hub. Carbon Nanotubes also have absorption, fluorescence properties. Bulk Carbon nanotubes are util...
Post a Comment
Read more

Hydroxyapatite Nanopowders and Their Applications

Hydroxyapatite, is a naturally occurring mineral form of calcium apatite with the formula Ca 5 (PO 4 ) 3 (OH). Pure hydroxyapatite powder is white. Naturally occurring apatites can, however, also have brown, yellow, or green colorations, comparable to the discolorations of dental fluorosis. Hydroxyapatite Nanopowder/Nanoparticles (50 nm, 99.95+%)  has been widely used as a biocompatible ceramic in many areas of medicine, but mainly for contact with bone tissue, due to its resemblance to mineral bone. In mammals, the skeleton presents a carbonated and partially substituted apatite, based on nanocrystal aggregates, and associated with collagen, building up 3-D structures present in various bone tissue conformations like trabecular or cancellous bone. There has been growing interest in developing bioactive synthetic ceramics that could closely mimic natural apatite characteristics. As mentioned before,  Hydroxyapatite Nanopowder  is the main inorganic constituent of bon...
Post a Comment
Read more