Construction of FeOOH modified CoMxOy (M = Mo, W, V) on nickel foam for highly efficient oxygen evolution reaction
SSRN Electronic Journal(2023)
Abstract
Design and synthesis of a highly efficient OER catalyst is the key to improve the efficiency of hydroelectrolysis for hydrogen production. In this paper, a rational approach to improve the catalytic performance of CoMoO4 nanomaterial was reported. A nanoflower structured CoMoO4 precursor was synthesized on nickel foam using a typical hydrothermal method. Then, CoMoO4/NF was etched through brief immersion in iron nitrate solution at room temperature to produce FeOOH-CoMoO4/NF. The unique 3D structure of FeOOH-CoMoO4/NF could availably promote interfacial electron transfer as well as effectively provide abundant active sites, and it exhibited excellent electrocatalytic activity. FeOOH-CoMoO4/NF requires an overpotential of 209 mV to achieve a current density of 10 mA cm(-2). Meanwhile, the material FeOOH-CoMoO4/NF exhibits excellent catalytic durability of up to 24 h, which is promising for practical applications in energy conversion. Thus, this work may offer a viable strategy to assemble remarkable OER electrocatalysts.
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Key words
efficient oxygen evolution reaction,feooh modified comxoy,nickel foam
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