Spatially Confined Formation of Single Atoms in Highly Porous Carbon Nitride Nanoreactors.

Reducing the size of a catalyst to a single atom (SA) level can dramatically change its physicochemical properties and significantly boost its catalytic activity. However, the massive synthesis of SA catalysts still remains a grand challenge mainly because of the aggregation and nucleation of the generated atoms during the reaction. Here, we design and implement a spatially confined synthetic strategy based on a porous-hollow carbon nitride (-CN) coordinated with 1-butyl-3-methylimidazole hexafluorophosphate, which can act as a nanoreactor and allow us to obtain metal SA catalysts (-CN@M SAs).

Galvanic replacement mediated 3D porous PtCu nano-frames for enhanced ethylene glycol oxidation.

Three dimensional (3D) porous PtCu nano-frames with a unique hollow structure were obtained after a galvanic replacement reaction, exhibiting a high normalized mass activity of 23.1 A m-2 μg-1 towards ethylene glycol oxidation with excellent stability. The morphological evolution and catalytic mechanism were detailed.