Development of novel spinel (CuMn2O4) embedded with rGO electrochemical strategy for water splitting

초록

With the expansion of modern industry, global energy challenges and environmental deterioration are intensifying. The spinel structure CuMn2O4 has attained significant attention as an OER catalytic material due of its terrestrial abundance and capacity to modulate electrical characteristics obtained by the hydrothermally. The surface observations of the nanoparticles suggested an increased surface area. CuMn2O4@rGO catalyst performance was obtained in 3 M KOH (basic medium), which exhibited a notable overpotential (eta) of 205 mV and the value of Tafel slope 46 mV dec- 1 at 10 mA cm-2. A reduction in impedance with the charge transfer resistance of 195 m Omega and remarkable stability were seen in the CuMn2O4@rGO catalyst following the 6000th cycle. The outcomes specified a significant improvement in the OER activity of CuMn2O4@rGO catalysts', with the addition of rGO improving both surface area and conductivity. This study provides enhanced OER catalysts for more efficient energy-generating electrocatalysts by offering an inclusive understanding of the association between the structure and activity of spinel.

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