Strong Metal–Support Interactions between Pt Single Atoms and TiO 2
Dalian Institute of Chemical Physics · Chinese Academy of Sciences · +3 more institutions
Abstract
Abstract Strong metal–support interaction (SMSI) has gained great attention in the field of heterogeneous catalysis. However, whether single‐atom catalysts can exhibit SMSI remains unknown. Here, we demonstrate that SMSI can occur on TiO 2 ‐supported Pt single atoms but at a much higher reduction temperature than that for Pt nanoparticles (NPs). Pt single atoms involved in SMSI are not covered by the TiO 2 support nor do they sink into its subsurface. The suppression of CO adsorption on Pt single atoms stems from coordination saturation (18‐electron rule) rather than the physical coverage of Pt atoms by the support. Based on the new finding it is revealed that single atoms are the true active sites in the…
Citation impact
- FWCI
- 23.62
- Percentile
- 100%
- References
- 78
Authors
11- BHBing Han
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, University of Chinese Academy of Sciences
- YGYalin Guo
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, University of Chinese Academy of Sciences
- YHYike Huang
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, University of Chinese Academy of Sciences
- WXWei Xi
Tianjin University of Technology
- JXJie Xu
Tianjin University of Technology
Topics & keywords
- Catalysis
- Metal
- Adsorption
- Atom (system on chip)
- Nanoparticle
- Chemical physics
- Sink (geography)
- Materials science