Highly Efficient Fabrication of Kilogram-Scale Palladium Single-Atom Catalysts for the Suzuki-Miyaura Cross-Coupling Reaction.

Palladium single-atom catalysts (SACs) have caught great attention owing to their maximal atom utilization and outstanding activity for the Suzuki-Miyaura cross-coupling reaction. However, a facile manufacturing method for kilogram-scale synthesis of noble metal SACs with high productivity is still in demand. This study reports on the synthesis of SACs by direct ball milling of commercial metal oxides and nitrate precursors with a productivity of ∼100%.

FeO supported Pt single atom catalysts for the selective hydrogenation of cinnamaldehyde.

Atomically dispersed Pt species supported on FeO (Pt/FeO) are successfully constructed by a simple ball milling process. In the selective hydrogenation of cinnamaldehyde (CAL), Pt/FeO achieves an excellent cinnamyl alcohol (COL) selectivity of 81.7% at a CAL conversion of 91.

Building up libraries and production line for single atom catalysts with precursor-atomization strategy.

Having the excellent catalytic performance, single atom catalysts (SACs) arouse extensive research interest. However, the application of SACs is hindered by the lack of versatile and scalable preparation approaches. Here, we show a precursor-atomization strategy to produce SACs, involving the spray of droplets of solutions containing metal precursors onto support surface through ultrasonic atomization and the subsequent calcination.

Protein powder derived nitrogen-doped carbon supported atomically dispersed iron sites for selective oxidation of ethylbenzene.

Atomically dispersed Fe species embedded in the nitrogen-containing carbon supports (Fe/NC) are successfully synthesized using a ball milling approach, with commercial protein powder as the nitrogen source. The catalyst exhibits outstanding performance in the oxidation of aromatic compounds containing saturated C-H bonds into corresponding ketones under ambient conditions, which is superior to those of a nanoparticle catalyst (Fe/NC) and a metal-free catalyst (NC).