Thermally stable single atom Pt/m-Al2O3 for selective hydrogenation and CO oxidation

Abstract Single-atom metal catalysts offer a promising way to utilize precious noble metal elements more effectively, provided that they are catalytically active and sufficiently stable. Herein, we report a synthetic strategy for Pt single-atom catalysts with outstanding stability in several reactions under demanding conditions. The Pt atoms are firmly anchored in the internal surface of mesoporous Al 2 O 3 , likely stabilized by coordinatively unsaturated pentahedral Al 3+ centres. The catalyst keeps its structural integrity and excellent performance for the selective hydrogenation of 1,3-butadiene after exposure to a reductive atmosphere at 200 °C for 24 h. Compared to commercial Pt nanoparticle catalyst on…

• NU
  National University of Singapore

  Awards: R-279-000-464-133, WBS: R-279-000-464-133
• CA
  Chinese Academy of Sciences
• KA
  King Abdullah University of Science and Technology
• DI
  Dalian Institute of Chemical Physics