Nature Communications (Sep 2019)
Maximizing sinusoidal channels of HZSM-5 for high shape-selectivity to p-xylene
Abstract
Full utilization of ZSM-5 shape-selectivity is restricted by crystal external surface acid sites and co-existence of two different sized channels. Here, the authors synthesize reverse Al zoned ZSM-5 with sinusoidal channel preferentially opened to its inert external surface to achieve 99.3% p-xylene selectivity.