Fullerene nanorods supported cobalt nickel sulfide composite as environment friendly electrocatalyst for oxygen evolution: Fullerenes, Nanotubes and Carbon Nanostructures: Vol 0, No 0

Summary

New varieties of clear and renewable vitality conversion and storage applied sciences similar to water electrolysis, gas cells and metal-air batteries have introduced new hopes for fixing the world’s more and more critical vitality scarcity and air pollution issues. These electrochemical applied sciences embrace vital electrode reactions, similar to hydrogen evolution response (HER), and oxygen evolution response (OER). Nonetheless, the gradual kinetics of OER has grow to be a bottleneck proscribing the general effectivity of water splitting. The state-of-the-art OER catalysts are primarily primarily based on Pt, Ir, and Ru in industrial purposes at the moment, that are costly and lack of reserves. Due to this fact, researchers are working exhausting to develop extremely lively and steady non-noble steel compounds as alternate options. On this work, we constructed a novel hybrid nanostructure with ultra-small cobalt nickel sulfide nanoparticles embellished on PVP-modified solvent-free fullerene nanorod (sf-FNR-PVP/CoNi₂S₄). Benefiting from the environment friendly cost switch from CoNi₂S₄ to FNR matrix, the hybrid materials exhibited enhanced OER exercise through the electrocatalytic response. Impressively, the Tafel slope of sf-FNR-PVP/CoNi₂S₄ was 82 mV dec⁻¹, and the cost switch resistance is 74.2 Ω, significantly better than that of CoNi₂S₄. Apart from, the sf-FNR-PVP/CoNi₂S₄ exhibited sturdy electrocatalytic sturdiness. This work supplies new alternative for fullerenes within the subject of vitality conversion and storage.