Optimized Ammonia-Sensing Electrode with CeO₂/rGO Nano-Composite Coating Synthesized by Focused Laser Ablation in Liquid.

ABSTRACT: This study investigated the synthesis of cerium oxide (CeO₂) nanoparticles (NPs) and composites with reduced graphene oxide (rGO) for the enhanced electrochemical sensing of ammonia. CeO₂ NPs were prepared by the focused laser ablation in liquid (LAL) method, which enabled the production of high-purity, spherical nanoparticles with a uniform dispersion and sizes under 50 nm in a short time. The effects of varying irradiation fluence and time on the nanoparticle size, production yield, and dispersion were systematically studied. The synthesized CeO₂ NPs were doped with rGO to form CeO₂/rGO composites, which were drop casted to modify the glassy carbon electrodes (GCE). The CeO₂/rGO-GCE electrodes exhibited superior electrochemical prope

SUBMITTER: Shi M 

PROVIDER: S-EPMC11314089 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature