Pulsed-Laser and Mechanical Reduction of Graphene Oxide Combined with NiCoFeMoW High-Entropy Alloys for Electrocatalytic Oxygen Evolution Reaction.

ABSTRACT: The development of cost-effective and high-performance electrocatalysts for the oxygen evolution reaction is critical for sustainable energy conversion technologies. In this study, graphene oxide is subjected to two distinct reduction techniques: nanosecond pulsed-laser irradiation and high-energy ball-milling. Structural characterization reveals that laser treatment led to partial reduction, while mechanical treatment achieves a higher degree of reduction. The treatments induce morphological transformations, with laser-irradiated samples exhibiting localized "wrinkling" due to thermal effects, whereas high-energy ball-milling induced "folding" resulted from prolonged mechanical stress. The electrocatalytic performance of reduced graphene oxide is further enhanced by incorporating a NiCoFe

SUBMITTER: Mahdavi H 

PROVIDER: S-EPMC12302311 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature