Abstract: Journal of Electronics Science and Electrical Research

Abstract:
Surface modification with thin organic layers is crucial for designing materials with specific properties to develop practical applications such as supercapacitors, metal-air batteries; fuel cells, corrosion resistance. In the present work, we focused on the grafting of thin film positively charged; i.e. ionic liquids (LIs) on a glassy carbon electrode (GC), then functionalized with metal nanoparticles (Pt or Pd). The SEM obtained images confirm the modified electrode. Then its catalytic performances towards the hydrogen evolution reaction (HER) were evaluated. Inter estingly, the catalytic performances are improved for both prepared electrodes (GC/LI/Pt, GC/LI/Pd), especially the latest one containing palladium. It seems that the ionic layer presence displays an increase catalytic, which is probably due to the synergistic effect existence between the grafted ionic layer and the metallic nanoparticles.