Abstract
Operando EPR gets hot In their Research Article on page 3596, Guido Zichittella, Yevhen Polyhach, Javier Pérez-Ramírez, and co-workers demonstrate operando EPR spectroscopy as a pivotal technique to assess the oxidation state of CrPO4 and EuOCl catalysts during high-temperature catalytic propane oxychlorination. As depicted in the cover picture, this enables the quantification of catalytically active centers, as the redox couple Cr3+ (gold)/Cr2+ (lilac), whose formation was correlated with the productivity of propylene.
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