Cu‐W bimetallic nanoparticles decorated g‐C3N4 sheets: Facile construction and characterization for perception of dopamine in sensing application

Abstract In this study, we present the development and analysis of electrochemical sensors utilizing graphitic carbon nitride copper‐tungsten nanoparticles (g‐C 3 N 4 @Cu‐W Nps) capped with various cationic surfactants of differing chain lengths and counter ions. The fabricated nanoparticles underwent thorough characterization to assess their morphological, structural, and compositional attributes, revealing their uniformity, spherical morphology, and monoclinic crystal phases. Subsequently, these nanoparticles were employed in the fabrication of electrochemical sensors for hydrazine detection. A comprehensive comparison of the electrochemical responses, evaluated via cyclic voltammetry, was conducted between sensors utilizing bare nanoparticles and those capped with surfactants.