PNNL

Abstract

Hydrogen has emerged as a long-term option for storing energy from renewable resources and has led the scientific community to develop enzyme-inspired catalysts for hydrogen oxidation and production. One of the most productive families of catalysts for H2 oxidation is the pendant amine containing bis-(diphosphine)nickel catalysts. Many derivatives of these nickel complexes have been prepared with varying peripheral functionalities to understand their structure-function relationship. Electrocatalysis is currently utilized as the primary tool to measure the catalytic turn over frequencies (TOFs) of these complexes, however, it does not allow accurate determination of TOFs for slow (