应用化学2023，Vol.40Issue(11)：1494-1503,10.DOI:10.19894/j.issn.1000-0518.230132
载体还原处理提高Ru/CeO2催化对苯二甲酸加氢转化性能
Enhancing Catalytic Activity of Ru/CeO2 in Terephthalic Acid Hydro-Conversion via Reduction Pre-Treatment of CeO2 Support
摘要
Abstract
Polyethylene terephthalate(PET)plastics can be recovered into terephthalic acid(PTA)and ethylene glycol monomers through hydrolysis reactions,and the comprehensive utilization of terephthalic acid has certain research significance.In this paper,Ru/CeO2 catalyzed PTA hydro-conversion reaction is researched.Attempts of generating more oxygen vacancies and Lewis acid sites on Ru/CeO2 by high-temperature reduction in H2 are made for boosting the catalytic activity in PTA hydro-conversion.Ru-based catalysts with pre-reduced CeO2 support exhibits significant enhanced activity in PTA hydro-conversion,as the PTA conversion is raised by 179％～300％under 200～250℃.The enhancement in catalytic activity by reduction pretreatment of CeO2 support is attributed to enhanced adsorption of PTA reactant due to newly generated Lewis acid sites.This work provides useful insights for rational design and precise surface regulation for Ce-based heterogeneous catalysts.关键词
塑料升级回收/催化加氢/表面调控/稀土催化Key words
Plastic upcycling/Catalytic hydrogenation/Surface modulation/Rare earth catalysis分类
化学化工引用本文复制引用
彭宇轩,汪啸,纪红艳,吴雪婷,宋术岩,张洪杰..载体还原处理提高Ru/CeO2催化对苯二甲酸加氢转化性能[J].应用化学,2023,40(11):1494-1503,10.基金项目
国家科技重大专项(No.2022YFB3504000)、国家自然科学基金(Nos.22020102003,22025506,22271274)和吉林省科技发展计划(Nos.20230101035JC,20230101022JC)资助 Supported by the Financial Aid from National Science and Technology Major Project of China(No.2022YFB3504000),the National Natural Science Foundation of China(Nos.22020102003,22025506,22271274)and Program of Science and Technology Development Plan of Jilin Province of China(Nos.20230101035JC,20230101022JC) （No.2022YFB3504000）
