The redox potential leveling effect of proton-coupled electron transfer has important implications for electrochemical energy conversion and chemical synthesis, as it provides the basis for lower overpotentials. Electron transfer mediators (ETMs) have been widely used in organic electrochemistry. The precedents in this area provide a foundation for our recent efforts to explore the utility of <i>electron-proton</i> transfer mediators (EPTMs) in various electrochemical processes. Quinones and organic nitroxyls are representative EPTMs capable of mediating hydrogen-atom and/or proton-coupled electron transfer reactions at the electrode and with other molecules in solution, and they can undergo electrochemical regeneration via proton-coupled electron-transfer at an electrode. This presentation will describe our use of EPTMs in the context of energy conversion, energy storage, and/or chemical synthesis.

Electron-proton-transfer mediators in electrochemical energy conversion and chemical synthesis

2019 Spring National Meeting

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