SPRAY PYROLYSIS METHOD FOR IN SITU PRODUCTION OF GRAPHENE OXIDE BASED COMPOSITES

摘要

There is provided a spray pyrolysis method for producing a graphene oxide based composite. The method includes spraying graphene oxide in suspension or solution into a reaction chamber. Simultaneously or separately spraying at least one precursor in suspension or solution into the reaction chamber. Heating the reaction chamber to produce an in situ chemical reaction between the graphene oxide and the at least one precursor, and retrieving a graphene oxide based composite from the reaction chamber. GO-Mn2O3/Mn3O4 composites were synthesized using the spray pyrolysis method. The results show unique morphology, afforded by the modified spray solution used including a hydroxide suspension, and enhanced capacitance. An exceptionally high capacitance value of about 606 Fg-1 at 5 mVs-1 was observed for an example 20% GO-Mn2O3/Mn3O4 material.