Ni-ANCHORING ON METAL ORGANIC FRAMEWORK MIL 101 AS A POTENTIAL CATALYST FOR ELECTRO-OXIDATION ETHANOL

Abstract

It is well known that MIL 101 with Cr-based metal-organic framework is a highly porous matrix material for anchoring Ni particle. Ni-anchoring MIL 101 with nano particles were successfully synthesized by hydrothermal reaction for ethanol electro-oxidation reaction. Ni- anchoring MIL 101 nano particle (Ni/MIL 101) was characterized by X-Ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) for structure and composition, and scanning electron microscopy (SEM), and transmission electron microscopy morphology (TEM). Ethanol electro-oxidation property of the Ni/MIL 101 catalysts was studied using cyclic voltammetry (CV) and chronoamperometry (CA).  Ni-anchoring MIL 101 NP revealed with 916 m² g^-1 of BET surface area and 10-20 nm of nano particle size. The electro-oxidation reaction of ethanol on Ni/MIL 101 occurred a pair of redox peaks at voltage of 0,45-0,65 V and 0,15-0,45 V (vs. Ag/AgCl/ NaCl 3M). This result showed that a highly porous three-dimensional structure of Ni/MIL 101 would be a potential catalyst for ethanol electro-oxidation and further fuel cells.