Enhanced H₂ Sensitivity in Ultraviolet-Activated Pt Nanoparticle/SWCNT/Graphene Nanohybrids

A surface engineering approach is exploited to enhance the performance of H2 sensors consisting of a single-wall carbon nanotube film/graphene 3D electrode decorated with catalytic Pt nanoparticles using atomic layer deposition (Pt-NPs/SWCNTs/Gr). Specifically, C-band ultraviolet (UVC) radiation has been applied on the Pt-NPs/SWCNTs/Gr sensors for up to 20 minutes to activate the carbon...