(111a) Catalytic Ethanol Dehydrogenation over Metal–Triazolate Frameworks for LOHC Applications

The reversible conversion of liquid organic hydrogen carriers (LOHCs) through (de)hydrogenation reactions is a proposed route to store and transport hydrogen equivalents. This presentation discusses the synthesis and utilization of metal-triazolate metal organic frameworks (MOFs) for ethanol dehydrogenation (EDH). The MOFs were prepared as the Ni or Co chloride form then exchanged with hydroxyl, thiol, or alkanethiol anions to modulate the reactivity. The EDH reaction was conducted in a vertical plug flow reactor at 1 atm and 448 to 523 K and clear differences were noted in reaction rates, reducibility, and the structure of the metal centers under reaction conditions. The structure-performance relationships derived from this study will be applied toward future materials for LOHC utilization.