Thermally induced intermetallic Rh₁Zn₁ nanoparticles with high phase-purity for highly selective hydrogenation of acetylene.

ABSTRACT: Ordered M₁Zn₁ intermetallic phases with structurally isolated atom sites offer unique electronic and geometric structures for catalytic applications, but lack reliable industrial synthesis methods that avoid forming a disordered alloy with ill-defined composition. We developed a facile strategy for preparing well-defined M₁Zn₁ intermetallic nanoparticle (i-NP) catalysts from physical mixtures of monometallic M/SiO₂ (M = Rh, Pd, Pt) and ZnO. The Rh₁Zn₁ i-NPs with structurally isolated Rh atom sites had a high intrinsic selectivity to ethylene (91%) with extremely low C₄ and oligomer formation, outperforming the reported intermetallic and alloy catalysts in acetylene semihydrogenation. Further studies rev

SUBMITTER: Lan X 

PROVIDER: S-EPMC10829007 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature