High‐Efficiency and Long‐life Synergetic Dual‐Oxide/Zeolite Catalyst for Direct Conversion of Syngas into Aromatics

Abstract Direct conversion of syngas to aromatics over metal oxide‐zeolite (OX‐ZEO) composite catalysts is a novel route for efficient utilization of carbon resources. To realize a high activity with considerable selectivity to aromatics and stability, the design of synergetic OX‐ZEO catalyst to meet complex kinetics still remains a great challenge. In this work, a synergetic dual‐oxide/zeolite catalyst was developed to tune the coupling between CO and H 2 activation through active H species migration, by adopting ZnZrO x oxide with stable single‐layer Zn−O structure for H 2 activation and CeZrO x oxide with abundant oxygen vacancies as the CO activation component. The ratio and the proximity of CeZrO x and ZnZrO x is essential for the catalyst activity and stability. The optimal catalyst 1CeZrO x ‐2ZnZrO x /Z5@Si shows a superior catalytic performance with 75.6 % aromatics selectivity at a CO conversion as high as 57.5 %. After induction period, the catalyst exhibits excellent stability for 1100 h, keeping the high selectivity above 75 % with an average conversion of 43 %. This work will provide a new perspective to design a high performance and long‐life OX‐ZEO composite catalyst for direct conversion of syngas to high value chemicals.