Chemically functionalized graphene oxide nanoparticle composites, coatings and methods of use thereof
AssigneeGeorgia Tech Research Corporation
InventorsZach Seibers, Thomas Michael Orlando, John R. Reynolds
Life of this patent
Estimating the term…
Abstract
Polymeric nanoparticle composites and methods for making and using the same are provided. Nanoparticle coatings and methods for making and using the same are also provided. Further, methods for synthesizing alkylated reduced graphene oxide nanoparticles are provided.
Claims20
A method of chemically functionalizing graphene oxide to form a reduced form of graphene oxide comprising:
- performing a first sequence comprising:
- reacting graphite flakes with potassium permanganate and sulfuric acid to form graphene oxide;
- reducing the graphene oxide with a reducing agent to form a reduced graphene oxide;
- and then
- reacting the reduced graphene oxide with sodium hydride and dodecyl bromide to form an alkylated reduced graphene oxide;
- or
- performing a second sequence comprising:
- reacting graphite flakes with potassium permanganate and sulfuric acid to form graphene oxide;
- reacting the graphene oxide with sodium hydride and dodecyl bromide to form an alkylated graphene oxide;
- and then
- reducing the alkylated graphene oxide with a reducing agent to form the alkylated reduced graphene oxide.
A method of chemically functionalizing graphene oxide to form a reduced form of graphene oxide comprising:
- performing a first sequence comprising:
- reacting graphite flakes with potassium permanganate and sulfuric acid to form graphene oxide;
- reducing the graphene oxide with a reducing agent to form a reduced graphene oxide;
- and then
- reacting the reduced graphene oxide with a base and an alkyl halide to form an alkylated reduced graphene oxide;
- or
- performing a second sequence comprising:
- reacting graphite flakes with potassium permanganate and sulfuric acid to form graphene oxide;
- reacting the graphene oxide with a base and an alkyl halide to form an alkylated graphene oxide;
- and then
- reducing the alkylated graphene oxide with a reducing agent to form the alkylated reduced graphene oxide;
- wherein:
- reacting with the base comprises reacting with the base in N-methyl-2-pyrrolidone (NMP);
- the reducing agent comprises hydrazine hydrate;
- the base is sodium hydride;
- and
- the alkyl halide is dodecyl bromide.
A method of chemically functionalizing graphene oxide to form a reduced form of graphene oxide comprising:
- performing a first sequence comprising:
- reducing graphene oxide with hydrazine hydrate as a reducing agent in N-methyl-2-pyrrolidone (NMP) solvent to form a reduced graphene oxide;
- and then
- reacting the reduced graphene oxide with sodium hydride as a base and dodecyl bromide as an alkyl halide to form alkylated reduced graphene oxide having an electronic conductivity σ (S/cm) of from about 3.4×102 to about 7.5×102;
- or
- performing a second sequence comprising:
- reacting graphene oxide with sodium hydride as a base and dodecyl bromide as an alkyl halide in N-methyl-2-pyrrolidone (NMP) solvent to form alkylated graphene oxide;
- and then
- reducing the alkylated graphene oxide with hydrazine hydrate as a reducing agent to form alkylated reduced graphene oxide having an electrical conductivity of from about 3.4×102 σ to about 7.5×102 σ.
Dependencies are inferred from the claim text.