Site Density Governs Switching Reactivity Regimes During Aerobic C─H Oxidation in Mn Single-Atom Photocatalysts.
Understanding how the density of isolated metal sites affects the structure and function of single-atom catalysts remains a central challenge, particularly for photocatalysts based on polymeric semiconductors. In this study, we show that Mn incorporation in carbon nitride-supported single-atom photocatalysts (Mn1@CNx)...