Sustainable Synthesis of Defect-Rich NiO Nanoparticles from Seaweed for Enhanced Oxygen Evolution
Green synthesis has emerged as a sustainable alternative for preparing nanostructured electrocatalysts using renewable biological resources. In this work, NiO nanoparticles were synthesized using an ethanolic extract of Sargassum sp. as a biogenic mediator, and the influence of calcination temperature (300, 500, and 70...