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 Al₂O₃, likely stabilized by coordinatively unsaturated pentahedral Al³⁺ 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 Al₂O₃ and control samples, this system e

SUBMITTER: Zhang Z 

PROVIDER: S-EPMC5537564 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature