Zhou Junfu, Miao Yuting, Ding Hongxin, Ren Yuanhang, Ye Lin, Yue Bin, He Heyong
Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Shanghai 200438, China.
iScience. 2024 Jun 22;27(7):110360. doi: 10.1016/j.isci.2024.110360. eCollection 2024 Jul 19.
Direct and stable conversion of CO to aromatics (CTA) is an attractive route for reducing CO emissions. However, due to the chemical inertness of CO, direct CTA reaction with high aromatics selectivity is still challenging. In this work, a tandem catalyst ZnTiO/HZSM-5 with appropriate density and strength of acid sites exhibits a high aromatics selectivity of 67.2% and long-term stability over 100 h. Furthermore, the total selectivity of benzene, toluene, and xylene achieves 24.1% over ZnTiO/HZSM-5 with a modified hydrophilic surface. In addition, the CTA via the formate route has been determined in this reaction system.
将一氧化碳直接稳定地转化为芳烃（CTA）是减少一氧化碳排放的一条有吸引力的途径。然而，由于一氧化碳的化学惰性，具有高芳烃选择性的直接CTA反应仍然具有挑战性。在这项工作中，具有适当酸位密度和强度的串联催化剂ZnTiO/HZSM-5表现出67.2%的高芳烃选择性和超过100小时的长期稳定性。此外，在具有改性亲水表面的ZnTiO/HZSM-5上，苯、甲苯和二甲苯的总选择性达到24.1%。此外，该反应体系中已确定通过甲酸盐途径进行CTA。
