Directing the reactivity of metal hydrides for selective CO₂ reduction.

ABSTRACT: A critical challenge in electrocatalytic CO₂ reduction to renewable fuels is product selectivity. Desirable products of CO₂ reduction require proton equivalents, but key catalytic intermediates can also be competent for direct proton reduction to H₂ Understanding how to manage divergent reaction pathways at these shared intermediates is essential to achieving high selectivity. Both proton reduction to hydrogen and CO₂ reduction to formate generally proceed through a metal hydride intermediate. We apply thermodynamic relationships that describe the reactivity of metal hydrides with H⁺ and CO₂ to generate a thermodynamic product diagram, which outlines the free energy of product formation as a function of proton activity and h

SUBMITTER: Ceballos BM 

PROVIDER: S-EPMC6294940 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature