AI Article Synopsis
- Molecular switches play a crucial role in both natural and artificial processes, and this study introduces a new electrochemical platform that uses a proton carrier to control a catalyst's activity.
- By integrating an alkyl phosphate into a lipid layer of a hybrid bilayer membrane, proton transport is effectively regulated for a copper-based catalyst involved in the reduction of molecular oxygen.
- This innovative setup not only sheds light on the oxygen reduction reaction but also enhances our understanding of proton-coupled electron transfer mechanisms.
Article Abstract
Molecular switches gate many fundamental processes in natural and artificial systems. Here, we report the development of an electrochemical platform in which a proton carrier switches the activity of a catalyst. By incorporating an alkyl phosphate in the lipid layer of a hybrid bilayer membrane, we regulate proton transport to a Cu-based molecular oxygen reduction reaction catalyst. To construct this hybrid bilayer membrane system, we prepare an example of a synthetic Cu oxygen reduction reaction catalyst that forms a self-assembled monolayer on Au surfaces. We then embed this Cu catalyst inside a hybrid bilayer membrane by depositing a monolayer of lipid on the self-assembled monolayer. We envisage that this electrochemical system can give a unique mechanistic insight not only into the oxygen reduction reaction, but into proton-coupled electron transfer in general.
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| http://dx.doi.org/10.1038/nmat3974 | DOI Listing |
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