Fast and facile electrosynthesis Ni-PtBTC MOF-derived nanocomposite as highly efficient electrocatalysis for HER

The use of renewable energy, especially water resources, through hydrogen evolution reduction (HER) is an important topic in research. In this survey, carbon cloth electrode (CCE) was applied as the working electrode, and NiBTC, Ni, Ni-Pt, and Ni-PtBTC were in situ electrosynthesized on the surface CCE as modifiers electrodes. After microstructural characterization of each modified electrode by field emission scanning electron microscopy (FE-SEM), their elemental analysis was accomplished by energy-dispersive X-ray analysis. The electrocatalytic performance of each presented modified CCEs toward HER was compared by linear scanning voltammetry and Tofel plot slope. Among these modified carbon cloth electrodes, Ni-PtBTC-modified CCE was shown the highest electroactive properties with an onset potential of 170 mV and Tafel slope of 40 mV dec −1 . The results showed a minimum charge transfer resistance ( R ct ) of 112.3 Ω cm 2 for Ni-PtBTC-modified CCE, and this modified electrode showed good stability under HER conditions despite low amount of platinum. Graphical abstract