As part of a collaborative, NSF-supported initiative to help develop the basic chemistry needed for producing solar fuels, relatively inexpensive, first row transition metals that mediate electrocatalytic hydrogen evolution at unusually positive potentials were studied. These complexes constitute a severe structural departure from the active sites of hydrogenase enzymes, but are attractive candidates for hydrogen evolution because they access reduced states at quite positive potentials that then trigger the two-electron reduction of proton to hydride. The systems are unusual in that they display remarkable tolerance to the typical hydrogenase poison, CO. This is an abstract of a paper presented at the 231st ACS National Meeting (Atlanta, GA 3/26-30/2006).
ASJC Scopus subject areas
- Chemical Engineering(all)