沸石分子筛催化材料在二氧化碳转化中的应用

Applications of zeolite-based catalysts in CO_(2)utilization

开发高效的CO_(2)化学转化和利用技术是推动碳捕集利用(CCU)技术快速发展的关键,对我国实现双碳战略目标具有重要意义。沸石分子筛是一种具有规整微孔结构、高结晶度以及高水热稳定性的无机材料,在CO_(2)化学转化领域有着广泛的应用前景。本文介绍了当前沸石分子筛催化材料在CO_(2)转化领域的应用研究进展,重点介绍了沸石催化剂在CO_(2)-CH_(4)干重整、CO_(2)加氢以及等离子体驱动CO_(2)转化方面的最新研究进展。理性设计并可控构筑高性能沸石分子筛催化材料以最大限度地提高CO_(2)转化效率和产物收率,是未来该领域的研究重点。尽管沸石分子筛催化材料在CO_(2)转化领域表现出良好的应用前景,但仍有很多方面值得深入开展研究:1)在CO_(2)直接加氢制C_(2)^(+)碳氢化合物(如芳烃)体系中,沸石分子筛的催化性质有着非常关键的作用,如何有效合成并调控沸石的酸性位点,是提高目标产物选择性和收率的关键;2)面向高通量CO_(2)转化过程,结合3D打印技术,实现整体式结构沸石分子筛催化材料的可控制备,将成为该领域的重要发展方向;3)面向新兴催化技术(如电催化、等离子体催化等),设计开发相应的沸石分子筛催化材料,也必将为沸石分子筛催化材料的应用拓展提供可能。

Development of highly efficient CO_(2)conversion technologies is key to advancing carbon capture and unitization(CCU),being very important to achieve the China′s carbon neutral climate goals.Zeolites are microporous and crystalline aluminosilicates with good stability and have shown the promise to be applied as the catalysts to promote CO_(2)conversion processes.Here,this review provides the state-of-the-art advances of zeolite-based catalysts for CO_(2)conversion with special focus on CO_(2)/CH_(4)dry reforming,CO_(2)hydrogenation and that promoted by non-thermal plasma activation.Based on the critical review,perspectives of rational design of zeolite-based catalysts are proposed to maximize CO_(2)conversion and target product yield,which are exemplified by(1)manipulation of the physiochemical properties of zeolite-based catalysts for improving the selectivity and yield in direct CO_(2)hydrogenation into C_(2)^(+) hydrocarbons(such as aromatics);(2)preparation of integrated zeolite-based catalysts using additive manufacturing techniques for high throughput CO_(2)conversion processes;and(3)bespoke design of zeolite-based catalysts to be applied in the emerging fields such as electrocatalysis and non-thermal plasma catalysis.