Tellurium-Incorporated Nickel-Cobalt Layered Double Hydroxide and Its Oxygen Evolution Reaction

Transition-metal-based layered double hydroxides (LDHs) have attracted substantial attention as highly efficient oxygen evolution reaction (OER) catalysts because they are earth-abundant, low-cost, and environmentally friendly materials with favorable adsorption/desorption energies for intermittent reactants. However, the application of these LDHs high-performance electrocatalysts is often hindered by their relatively sluggish electronic transport kinetics resulting from intrinsically low conductivity. Here, we report effects incorporating a metalloid into transition metal on electrocatalytic activity. In this study, Te-incorporated NiCo LDH (<i>χ</i>Te-NiCo LDH) was grown three-dimensional porous nickel foam (NF) using facile solvothermal method <i>χ</i> = 0.2, 0.4, 0.6 0.8. The crystal structure surface nanostructure were investigated X-ray diffraction field-emission scanning electron microscopy. A homogeneous nanosheet NF clearly observed <i>χ</i>Te-NiCo (<i>χ</i> 0.6) LDHs. irregular collapsed nanostructures found when Te precursor ratio (<i>χ</i>) exceeded 0.6. OER properties analyzed linear sweep voltammetry electrochemical impedance spectroscopy. amount used in to play crucial role improving catalytic optimum introduced discussed respect performance.