The carboxylates formed on oxides promoting the aromatization in syngas conversion over composite catalysts

Syngas to aromatics (STA) over bifunctional catalysts has attracted much attention in recent years, but the mechanism underlying formation of remains controversial. The critical reaction intermediates, carboxylates, were first identified and then confirmed essentially promote aromatization syngas conversion a ZnCrAlOx&H-ZSM-5 composite catalyst. This study provides evidence that carboxylates can be formed during reactions formate species olefins. In addition, it is shown favor H-ZSM-5 even presence H2. A novel for via generation transformation carboxylate intermediates proposed, methyl-2-cyclopenten-1-one (MCPO) indeed likely. better understanding would help optimize