A telluride-spinel ZnCoTe/NF catalyst delivered an overpotential () of only 370 mV to achieve a current density of 100 mA cm and displayed no significant degradation of performance during 50 h of operation. By virtue of synchrotron infrared spectroscopic detection, an accumulation of key OOH* intermediates over the active site was observed, suggesting that the reaction followed the efficient adsorbate evolution mechanism (AEM) for water oxidation.

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http://dx.doi.org/10.1039/d3cc02261gDOI Listing

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