 This research has developed a new catalyst, thermally transformed MIL-88B, for the efficient conversion of methanol to acetic acid. The catalyst consists of Fe0 and Fe3O4 nanoparticles embedded in a carbonaceous matrix. It was found to have a high acetic acid yield of 590.1 mole, GAT.L and 81.7% selectivity, at 150°C, in the aqueous phase using Li-I as a co-catalyst. The catalyst was also shown to be stable over multiple cycles, making it suitable for industrial application. This article was authored by Wacker Ahmed, Parameter Kohli, Swarit Vivedi and others.