Development of ternary Pd-Co-Ir metal nanoparticles decorated on graphene-CNTs hybrid support: An efficient electrocatalyst for hydrogen production from methanol reformation

Amorphous Fe/Co-based tannic acid salts as robust oxygen evolution pre-catalysts

“…The pristine CNTs show a weak and wide peak at 3430 cm −1 , which was caused by surface oxidation. 48 For comparison, the FT-IR spectrum of pure tannic acid was also recorded. The wide absorption peak at 3430 cm −1 corresponds to the stretching vibration of phenol hydroxyl groups.…”