Dynamic metal-polymer interaction for the design of chemoselective and long-lived hydrogenation catalysts
Songhyun Lee, Seung‐Jae Shin, Hoyong Baek, Yeonwoo Choi, Kyunglim Hyun, Myungeun Seo, Kyunam Kim, Dong‐Yeun Koh, Hyungjun Kim, Minkee Choi
Abstract
activation only in the presence of acetylene that has a strong binding affinity to Pd and thus can disturb the Pd-PPS interface. Once acetylene is hydrogenated to weakly binding ethylene, re-adsorption of PPS on the Pd surface repels ethylene before it is further hydrogenated to ethane. The Pd-PPS interaction enables selective partial hydrogenation of acetylene to ethylene even in an ethylene-rich stream and suppresses catalyst deactivation due to coke formation. The results manifest the unique possibility of harnessing dynamic metal-polymer interaction for designing chemoselective and long-lived catalysts.