Highly efficient electrocatalytic hydrogen evolution from neutral aqueous solution by a water-soluble anionic cobalt(ii) porphyrin

Abstract

CoTPPS is an efficient electrocatalyst for H₂ generation from neutral phosphate buffer solution. It features quantitative Faradaic efficiency with a TOF of ∼1.83 s⁻¹ and a TON of 1.9 × 10⁴ mol of H₂ per mole of catalyst at an applied potential of −1.29 V (vs. SHE).