The interaction inside heterogeneous nanostructures can provide a great opportunity to radically improve their electrocatalytic properties and increase their activity and stability. Here a rational, simple, and integrated strategy is reported to construct uniform and strongly coupled metalmetal oxidegraphene nanostructure as an electrocatalyst with high performance. We will first simply synthesize the interacted ZnOrGO (reduced graphene oxide) hybrid with ZnO nanoparticles selectively anchored on the oxygenated defects of rGO using an in situ redox and hydrolysis reaction. After the deposition of Pt, uniform Pt NPs will be found to contact intimately and exclusively with the ZnO phase in the ZnO-rGO hybrid. This constructed nanostructure (Pt-ZnOrGO) will be evaluated significantly for electrocatalytic oxidation of methanol, formic acid and reduction of oxygen applications. It is anticipated that there will be strong coupling between ZnO and graphene as well as between Pt and ZnO, revealing that such a process can be used to immobilize various metal catalysts on metal-oxide-decorated catalysts for realizing advanced catalytic systems with enhanced performance. The prepared materials will be characterized using the advance techniques like transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), nano-zeta sizers and BET multipoint technique. After characterization the materials will be used in the fabrication/modification of electrode. The fabricated/modified electrode will be tested for electrocatalytic reduction of oxygen and oxidation of methanol and formic acid.
|Effective start/end date
|1/04/20 → 1/04/23
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