Ambient-condition acetylene hydrogenation to ethylene over WS₂-confined atomic Pd sites.

ABSTRACT: Ambient-condition acetylene hydrogenation to ethylene (AC-AHE) is a promising process for ethylene production with minimal additional energy input, yet remains a great challenge due to the difficulty in the coactivation of acetylene and H₂ at room temperature. Herein, we report a highly efficient AC-AHE process over robust sulfur-confined atomic Pd species on tungsten sulfide surface. The catalyst exhibits over 99% acetylene conversion with a high ethylene selectivity of 70% at 25 ^oC, and a record space-time yield of ethylene of 1123 mol_C2H4 mol_Pd^-1 h^-1 under ambient conditions, which is nearly four times that of the typical Pd₁Ag₃/Al₂O₃ catalyst, and exhibiting superior stability

SUBMITTER: Zhang W 

PROVIDER: S-EPMC11530560 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature