文献类型：期刊文献

英文题名：Self-pillared ZSM-5 with enhanced acid site accessibility for CO2 hydrogenation to aromatics

作者：Deng, Liang[1,2];Zhang, Jianbo[1,2];Yang, Yanjuan[1,2];Wang, Tinghu[3];Tian, Pengfei[4];Zhu, Minghui[3];Yang, Zixu[3];Xu, Jing[1,2,3]

机构：[1]Univ Engn Res Ctr Green Chem New Mat, Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Guangxi, Peoples R China;[2]Guangxi Univ, Sch Chem & Chem Engn, Guangxi Key Lab Petrochem Resource Proc & Proc Int, Nanning 530004, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Green Chem Engn & Ind Catalysis, Shanghai 200237, Peoples R China;[4]East China Univ Sci & Technol, Sch Mech & Power Engn, Key Lab Pressure Syst & Safety, Minist Educ, Shanghai 200237, Peoples R China

年份：2026

卷号：386

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY

收录：;EI(收录号：20260119844833);WOS:【SCI-EXPANDED(收录号:WOS:001656522200001)】；

基金：The authors greatly acknowledge the funding support from Guangxi Science and Technology Base and Talent Project (Guike AD23026311) , Guangxi Science and Technology Major Program (Guike AA23062018) , Natural Science Foundation of China (Grant Nos. 22378118 and 22278405) , Open Fund of State Key Laboratory of Chemical Engineering (GZA01220102) , The Shanghai Rising-Star Program (23QA1402400) , Innovation Project of Guangxi Graduate Education (YCBZ2025059) .

语种：英文

外文关键词：Aromatics; Self-pillared ZSM-5; Structure-function relationship; Reaction-diffusion enhancement; CO2 hydrogenation

摘要：Even though tremendous progress has been made toward CO2 hydrogenation to liquid fuels and value-added chemicals, selectively converting CO2 to aromatics remains a major challenge because diffusion limitations of zeolite channels restrain the diffusion of reactants and products, which inevitably leads to poor catalytic performance and rapid deactivation. Here, a bifunctional catalyst composed of Na-Fe2O3 (NaFe) and a self-pillared ZSM-5 (SPZ) zeolite showed excellent aromatic selectivity of 54.1 % at a CO2 conversion of 40.2 %. Moreover, compared with coffin-like ZSM-5 (C-Z5), the SPZ zeolite delivers a substantially extended lifetime because its hierarchical porous structure and plate-like primary units with short b-axis structures strengthen the diffusion of reactants and products, increase the accessibility of acid sites, and enhance the catalyst stability via the suppression of carbon deposition. Most significantly, through the investigation of structure-function relationship, the revelation of the synergistic effect between diffusion properties and acid sites underscores the pivotal role of precise tuning of ZSM-5 samples in optimizing aromatic selectivity.