Microwave assisted synthesis of MnO 2 on nickel foam-graphene

What is it about?

A green chemistry approach (hydrothermal microwave irradiation) has been used to deposit manganese oxide on nickel foam-graphene. The 3D graphene was synthesized using nickel foam template by chemical vapor deposition (CVD) technique. Raman spectroscopy, X-ray diffraction (XRD), scanning electron and transmission electron microscopies (SEM and TEM) have been used to characterize structure and surface morphology of the composite, respectively.

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Why is it important?

The composite was tested in a three electrode configuration for electrochemical capacitor, and exhibited a specific capacitance of 305 F g−1 at a current density of 1 A g−1 and showed excellent cycling stability. The obtained results demonstrate that microwave irradiation technique could be a promising approach to synthesis graphene based functional materials for electrochemical applications.