By modulating the acidity of the molecular sieve shell, they effectively facilitated the controlled C-O chain growth at medium-strength Brønsted acid sites through methanol dehydration.

Initially, isolated metal species are bonded to the support, and they are then reversibly transformed into mobile isolated metal species for catalysis during the reaction.

In recent years, new acrylic acid synthesis techniques based on non-petroleum routes have received extensive attention from both academia and industry.