Effective water oxidation electrocatalysts utilize high-valent transition metal centers, coupled with sufficiently covalent metal-oxo bonding, to produce dioxygen from water at anodic potentials. Previously, we have shown that water oxidation catalysts explored in non-aqueous solvents exhibit sequential oxidation features leading to ultra-high-valent sites (e.g. iron[VI] in nickel-iron layered double hydroxides). We have repurposed one of these iron-containing catalysts to perform selective hydrocarbon oxidation, which can be easily tuned by adjusting the electrode potential, favoring of one of the iron intermediates (i.e. IV/V/VI). Oxygen equivalents come directly from trace water in the solvent, and flow-chemistry is used to yield high conversion efficiency for a number of solvents. We will discuss how this modified electrochemical system can be employed to synthesize value-added products and complex molecules from cheap starting materials.

Selective electro-oxidation of hydrocarbons by water oxidation catalysts in non-aqueous media

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.