Metal-Free Dehydrogenation of Formic Acid to H2 and CO2 Using Boron-Based Catalysts
Résumé
Formic acid is at the crossroads of novel sustainable energy strategies because it is an efficient H2 carrier. Yet, its decomposition to H2 today relies on metal-based catalysts. Herein, we describe the first metal-free catalysts able to promote the dehydrogenation of formic acid. Using dialkylborane derivatives, HCOOH is decomposed to H2 and CO2, in the presence of a base, with high selectivity. Experimental and computational results point to the involvement of bis(formyloxy)borates as key intermediates in the C–H bond activation of a formate ligand
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