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Metal-free dehydrogenation of formic acid to H2 and CO2 using boron-based catalysts.

ABSTRACT: Formic acid is at the crossroads of novel sustainable energy strategies because it is an efficient H2 carrier. Yet, to date, its decomposition to H2 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.

SUBMITTER: Chauvier C 

PROVIDER: S-EPMC5655896 | biostudies-other | 2015 May

REPOSITORIES: biostudies-other

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Metal-free dehydrogenation of formic acid to H<sub>2</sub> and CO<sub>2</sub> using boron-based catalysts.

Chauvier Clément C   Tlili Anis A   Das Neves Gomes Christophe C   Thuéry Pierre P   Cantat Thibault T  

Chemical science 20150306 5

Formic acid is at the crossroads of novel sustainable energy strategies because it is an efficient H<sub>2</sub> carrier. Yet, to date, its decomposition to H<sub>2</sub> 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 H<sub>2</sub> and CO<sub>2</sub> in the presence of a base with high selectivity. Experimental and computational results point to the inv  ...[more]