Synthesis of Pt₃Zn₁ and Pt₁Zn₁ intermetallic nanocatalysts for dehydrogenation of ethane

Abstract

Pt3Zn1and Pt1Zn1intermetallic nanoparticles supported on SiO2were synthesized by combining atomic layer deposition (ALD) of ZnO, incipient wetness impregnation (IWI) of Pt, and appropriate hydrogen reduction. The formation of Pt1Zn1and Pt3Zn1intermetallic...

Recent Advances in Metal−Zeolite Catalysts for Direct Propane Dehydrogenation

“…Pt-based alloys help to increase the electron density on the Pt surface and enhance propylene selectivity. − Nevertheless, the formation of metal alloy nanoparticles also results in reduced dehydrogenation activity and exposed Pt sites. To maximize dehydrogenation activity, sub-nanometric Pt clusters anchored by heteroatoms in zeolites were favorable for PDH. ,, Heteroatoms in zeolite ensure a high dispersion of Pt species under a high reaction temperature.…”