Improved electrocatalytic activity of selenide nanoparticle for oxygen evolution reaction

Abstract

Oxygen Evolution Reaction (OER) plays a vital role in water electrolysis, but its slow kinetics and expensive catalysts are obstacles to widespread use. To improve the OER activity, it is crucial to create a well-structured design for electrocatalysts based on transition metals, which may be applied to a conducting polymer substrate. This research reports a facile hydrothermal synthesis and remarkable catalytic behavior of NbSe2/g-CN as an OER catalyst in an alkaline condition. The fabricated electrocatalysts were examined utilizing numerous analytical techniques to assess their crystallinity, oxidation states and morphology. NbSe2/g-CN shows enhanced electro-catalytic behavior to OER in alkaline solution (1.0 KOH) with minor overpotential (196 mV) and Tafel slop (38 mV/dec) than pristine NbSe2 electrocatalyst was associated with the exceptional conductivity of NF and its highly porous structure, along with a greater SSA. In addition, the durability of the electrocatalyst was examined via cyclic stability and chronoamperometry study over 40 h. This study demonstrates that TMSe with specific morphology can improve electrocatalytic activity when combined with g-CN, demonstrating its potential for reliable and eco-friendly energy generation