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Self-healing oxygen evolution catalysts
Agnes E Thorarinsdottir1, Samuel S Veroneau1, Daniel G Nocera2
1Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, 02138, USA.
Abstract:
Electrochemical and photoelectrochemical water splitting offers a scalable approach to producing hydrogen from renewable sources for sustainable energy storage. Depending on the applications, oxygen evolution catalysts (OECs) may perform water splitting under a variety of conditions. However, low stability and/or activity present challenges to the design of OECs, prompting the design of self-healing OECs composed of earth-abundant first-row transition metal oxides. The concept of self-healing catalysis offers a new tool to be employed in the design of stable and functionally active OECs under operating conditions ranging from acidic to basic solutions and from a variety of water sources.
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