Microwave assisted synthesis of MnO2 on nickel foam-graphene for electrochemical capacitor

A. Bello, O.O. Fashedemi, M. Fabiane, J.N. Lekitima, K.I. Ozoemena, N. Manyala
  • Electrochimica Acta, December 2013, Elsevier
  • DOI: 10.1016/j.electacta.2013.09.134

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.

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.

The following have contributed to this page: Dr Abdulhakeem Bello