Hybrid bilayer membrane: a platform to study the role of proton flux on the efficiency of oxygen reduction by a molecular electrocatalyst |
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Authors: | Hosseini Ali Barile Christopher J Devadoss Anando Eberspacher Todd A Decreau Richard A Collman James P |
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Institution: | Department of Chemistry, Stanford University, Stanford, California 94305, USA. alih2@stanford.edu |
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Abstract: | In this report, we present a novel platform to study proton-coupled electron transfer (PCET) by controlling the proton flux using an electrode-supported hybrid bilayer membrane (HBM). Oxygen reduction by an iron porphyrin was used as a model PCET reaction. The proton flux was controlled by incorporating an aliphatic proton carrier, decanoic acid, into the lipid layer of the HBM. Using this system, we observed a different catalytic behavior than obtained by simply changing the pH of the solution in the absence of an HBM. |
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