Synthesis of 1,3-dicarbonyl-functionalized reduced graphene oxide/MnO composites and their electrochemical properties as supercapacitors.

A novel 1,3-dicarbonyl-functionalized reduced graphene oxide (rDGO) was prepared by -(4-aminophenyl)-3-oxobutanamide interacting with the epoxy and carboxyl groups of graphene oxide. The high-performance composite supercapacitor electrode material based on MnO nanoparticles deposited onto the rDGO sheet (DGM) was fabricated by a hydrothermal method. The morphology and microstructure of the composites were characterized by field-emission scanning electron microscopy, transmission electron microscopy, Raman microscopy and X-ray photoelectron spectroscopy.