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description
chemically reduced
form
powder
composition
Carbon, ≥75 wt. %
Nitrogen, >5 wt. %
Oxygen, <22 wt. %
surface area
450 m2/g
conductivity
>600 S/m
solubility
water: insoluble
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General description
The structure of graphene oxide is similar to graphene containing residual oxygen, heteroatoms and structural defects. Reduced graphene oxide (rGO) can be extracted as thin film from an aqueous solution of graphite oxide (GO) slurry. Many modern procedures for the synthesis of GO are based on the Hummers method, in which graphite is oxidized by a solution of potassium permanganate in sulfuric acid. Reduction of GO using hydrazine has been reported. However, hydrazine is highly toxic and can potentially functionalize GO with nitrogen heteroatoms. Because of these issues, alternatives to hydrazine including NaBH4, ascorbic acid, and HI, among others have been used for the reduction of GO. GO can be reduced as a thin film or in an aqueous solution. Reduction methods have been recently reviewed.
Application
The spin-coated reduced graphene oxide (rGO) thin films have been used as annode buffer layer to fabricate bulk heterojunction org. solar cells. PEGylated rGO may be used as:
- chemical sensors, biosensors
- as transparent electrodes in light emitting diodes (LEDs) and ITOs
- in lithium ion batteries.
Preparation Note
- Reduction method: Chemically reduced
- Color: Black
- Odor: Odorless
- Solubility: Insoluble
- Dispersability: It can be dispersed at low concentrations (<0.1mg/mL) in NPM, DMSO, DMF
- Electrical conductivity: > 600S/m
- BET surface area: 450 m2/g
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
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