Marriage of Ultralow Platinum and Single-Atom MnN 4 Moiety for Augmented ORR and HER Catalysis
Wuhan University of Technology · Ji Hua Laboratory
Abstract
Hitherto, Pt-based catalysts still are state of the art for oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER), but high dosage, low atom-utilization efficiency, and uncontrollable size of Pt species seriously impede their applications. Given this, we propose an effective way by enhancing Pt–transition metal single-atom interaction. Due to the strong interaction between single-atom Mn sites in Mn–N–C and Pt species, the overgrowth of Pt species is effectively limited with an average size smaller than 2.5 nm. Meanwhile, the regulated electronic structure drives electron transfer from Mn to adjacent Pt sites, endowing catalysts with reduced reaction energy barrier and higher intrinsic…
Citation impact
- FWCI
- 11.55
- Percentile
- 100%
- References
- 38
Authors
9Topics & keywords
- Catalysis
- Chemistry
- Platinum
- Moiety
- Density functional theory
- Transition metal
- Adsorption
- Atom (system on chip)
- Affordable and clean energy