Controllable synthesis of Ir(Rh)–Sn/SiO2 bimetallic catalysts via surface organometallic chemistry for the production of ethanol from hydrogenolysis of ethyl acetate

A series of highly active Ir–Sn/SiO₂ and Rh–Sn/SiO₂ catalysts for ethyl acetate hydrogenolysis to ethanol were prepared from the grafting synthesis based on the surface organometallic chemistry concept.

Nanoalloy Materials for Chemical Catalysis

Nanoalloys (NAs), which are distinctly different from bulk alloys or single metals, take on intrinsic features including tunable components and ratios, variable constructions, reconfigurable electronic structures, and optimizable performances, which endow NAs with fascinating prospects in the catalysis field. Here, the focus is on NA materials for chemical catalysis (except photocatalysis or electrocatalysis). In terms of composition, NA systems are divided into three groups, noble metal, base metal, and noble/base metal mixed NAs. Their design and fabrication for the optimization of catalytic performance are systematically summarized. Additionally, the correlations between the composition/structure and catalytic properties are also mentioned. Lastly, the challenges faced in current research are discussed, and further pathways toward their development are suggested.

Tuning the structure and catalytic activity of Ru nanoparticle catalysts by single 3d transition-metal atoms in Ru12–metalloporphyrin precursors

The single 3d metal atoms at the central position of the Ru₁₂–metalloporphyrin complex precursors exerted a significant influence on the structure and hydrogenation performance of the Ru nanoparticles on the SiO₂ surface.