With the growing crisis of global warming, it is imperative that we investigate new, innovative methods for more economically viable renewable energy resources. In this study, we investigate the water-splitting properties of the benchmark NiFe oxide electrocatalysts when incorporated into metal-organic framework (MOF) nanosheets on 3D reduced graphene oxide (RGO) foams for hydrogen production. The graphene oxide is placed in the metal-organic solutions which then undergo facile hydrothermal reactions to permit the growth of 3D RGO foams and the formation of nanostructural MOFs on the foams. The resulting MOFs on 3D RGO foams may offer large surface areas, leading to more active sites for NiFe oxides to attach to and participate in during the oxygen evolution reaction (OER). The structures of the samples are characterized by various methods including X-ray diffraction and Raman spectroscopy. Their OER electrocatalytic properties are evaluated by cyclic voltammetry and linear sweep voltammetry and compared to those of benchmark OER catalyst Ir/C.

Synthesis of NiFe oxide-based metal-organic framework nanosheets on 3D reduced graphene oxide foams for water-splitting electrocatalysis

2019 Spring National Meeting

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