our group reported the design and synthesis of encaging platinum single atoms and ultrafine nanoparticles to periodic nanoporous architectures of three-dimensional graphene-like carbon matrix by a novel transformative strategy. With the strategy, the unique pore channels facilitate the metal dimensions by physical constraints, and at the same time, the chemical anchor effect between Pt single atoms and carbon confers a superb electrochemical oxygen reduction reaction performance, delivering an extremely high mass activity of 27 times higher compared to commercial Pt/C catalyst. Furthermore, in proton exchange membrane fuel cells, the catalyst exhibits a superior mass activity of 8.30 times and 1.64 times higher than that of commercial Pt/C-based MEA and the US Department of Energy (DOE) 2025 activity target, respectively. This work has been published in ACS Catalysis.

The article links：https://pubs.acs.org/doi/10.1021/acscatal.2c05613