Ordered Mesopore Confined Pt Nanoclusters Enable Unusual Self-Enhancing Catalysis.

ABSTRACT: As an important kind of emerging heterogeneous catalyst for sustainable chemical processes, supported metal cluster (SMC) catalysts have received great attention for their outstanding activity; however, the easy aggregation of metal clusters due to their migration along the substrate's surface usually deteriorates their activity and even causes catalyst failure during cycling. Herein, stable Pt nanoclusters (NCs, ∼1.06 nm) are homogeneously confined in the uniform spherical mesopores of mesoporous titania (mpTiO₂) by the interaction between Pt NCs and metal oxide pore walls made of polycrystalline anatase TiO₂. The obtained Pt-mpTiO₂ exhibits excellent stability with well-retained CO conversion (∼95.0%) and Pt NCs (∼1.20 nm) in the long term water-gas shift

SUBMITTER: Gao M 

PROVIDER: S-EPMC9801509 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature