Selective transfer hydrogenation of nitrobenzaldehydes over an extremely active synergistic MOF@Pt@MOF catalyst.

Designing and developing efficient synergistic catalytic systems has always been an exciting topic. In this work, a sandwich-type nanocomposite, UiO-66-NH 2 @Pt@PCN-222, was utilized as a synergistic catalytic system for the selective reduction of nitrobenzaldehydes to nitrobenzyl alcohols. Benefiting from the synergy of PCN-222 and Pt NPs, the catalyst can efficiently promote the formation of 10 nitrobenzyl alcohols under mild conditions within as short as 30 min. Moreover, the PCN-222 provides not only active sites but also protection for metal nanoparticles, so the catalyst remained intact activity in cycles. This work has reference significance for the construction of synergistic catalytic systems. Ultrafast selective hydrogenation reduction of nitrobenzaldehydes to nitrobenzyl alcohols was catalyzed by a stable and synergistic sandwich-type catalyst UiO-66-NH 2 @Pt@PCN-222. [Display omitted] • Ultrafast selective hydrogenation of nitrobenzaldehydes to nitrobenzyl alcohols. • A sandwich-type MOF@Pt@MOF catalyst with synergistic active sites. • Mesoporous MOF, PCN-222, as the active armor of both catalytic activity and protection. [ABSTRACT FROM AUTHOR]