Synthesis and Characterization of Carbon Aerogels Electrodes Modified by Ag2S Nanoparticles

In this work, electrodes based on carbon aerogels (CA) modified by Ag2S nanoparticles (NPs) were synthesized sputtering and solid-vapor reactions. Nanoparticles identified as silver sulfide (acanthite phase) their size was controlled the time (5s deposition- 8.65 nm ± 1.74 nm, 7s 12.78 8.53 45 s 21.35 10.07 nm). It found that properties vary according to NPs sizes. All exhibited an improved REDOX reactions reversibility, enhanced optical (0.97 1.22 eV bandgap) electrical conductivity (8.60-9.40 S/cm) when compared with pure aerogel (1.4 eV, 8.20 S/cm).