Preparation of Cu/Pt Bimetallic Nanocomposite on the MOF-199 Derived Nanoporous Carbon and its Application for Hydrogen Evolution Reaction

This work is allocated to the preparation of Cu/Pt bimetallic nanocomposite onto glassy carbon electrode modified with MOF-199 derived nanoporous carbon structure (MDNPC), through spontaneous and irreversible reaction via galvanic replacement between [PtCl6]-2ions and Cu particles that it is presented in synthesized nanoporous.The nanoporous carbon is synthesized by direct carbonization of MOF-199 metal organic framework in N2 atmosphere. The physical characterizations of the solid catalyst were achieved by using X-ray powder diffraction, Energy dispersive X-ray spectroscopy,scanning electron microscopy and nitrogen physisorption measurements. The comparison of the EDX analysis of the electrode surface before and after dipping onto platinum solution confirmed that galvanic replacement is occurred.This behavior can be associated to existence of copper and has been confirmed by XRD pattern, in MDNPC modifier.The electrochemical results have shown that Cu/Pt bimetallic GCE exhibited high current densities and positive potentialin hydrogen evolution reaction.This is attributed to synergetic effect of bimetallic and uniform distribution of the nanoparticle onto modified electrode surface duo to high surface area of nanoporous carbon.