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Synthesis of a small-size metal oxide mixture based on MoO and NiO with oxygen vacancies as bifunctional electrocatalyst for oxygen reactions

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Abstract In this work, a 3d metal (Ni) and a 4d metal (Mo) were mixed using tungstic acid (TA) as particle size/shape controller to develop a MoOx-NiO (labelled as Mo-Ni)… Click to show full abstract

Abstract In this work, a 3d metal (Ni) and a 4d metal (Mo) were mixed using tungstic acid (TA) as particle size/shape controller to develop a MoOx-NiO (labelled as Mo-Ni) bifunctional electrocatalyst for oxygen reduction (ORR) and oxygen evolution (OER) reactions in alkaline medium. The formation of MoOx-NiO was determined by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). XPS also revealed that the Mo-Ni material contained oxygen vacancies, while transmission electron microscopy (TEM) indicated that MoOx-NiO material had sub

Keywords: oxygen; electrocatalyst oxygen; bifunctional electrocatalyst; metal; oxygen vacancies; size

Journal Title: Applied Surface Science
Year Published: 2020

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