Enhanced Performance of Selective Hydrogenation of Cinnamaldehyde on Surface‐Oxidated SiC‐Supported Pt Catalysts

Abstract Achieving selective hydrogenation of cinnamaldehyde (CAL) is a crucial yet challenging task due to the presence of easily hydrogenated CC and CO bonds in the CAL molecule. In this work, we report that Pt catalysts supported by surface‐oxidated SiC show enhanced catalytic performance for the CAL hydrogenation. Notably, the HNO 3 ‐treated SiC‐supported Pt shows the best catalytic performance. Further investigations reveal that the SiC surface is presenting a micro‐oxidated state by HNO 3 treatment. This is conducive to enhancing the hydrogen spillover of the catalyst surface. Additionally, this treatment altered the catalyst's hydrophobic properties, thereby boosting the adsorption of CAL. This research offers valuable insights for the design of more effective catalysts aimed at the selective hydrogenation of CAL.