High silica small-pore aluminosilicate zeolites such as SSZ-13 have been commercially applied in selective catalytic reduction of NOx with NH₃ (NH₃-SCR), but their syntheses usually require the use of organic templates, which are environmentally unfriendly. Solution for this problem is sustainable synthesis of high silica small-pore zeolites in the absence of organic templates. One of examples is 8-membered ring aluminosilicate KFI zeolite, which is always Al-rich (Si/Al<4, KFI-4.0) in conventional synthesis. In this report, inspired by high throughput calculations, we successfully prepared new high silica small pore zeolite with KFI structure (Si/Al>5, designated as ZJM-7) in the presence of K⁺. Interestingly, even after hydrothermal treatment at 850 °C for 12 h, Cu-ZJM-7 catalyst still shows excellent performance in the NH₃-SCR reaction. The combination of sustainable synthesis and excellent catalytic properties of ZJM-7 zeolite might provide a good opportunity for developing highly efficient and low-cost SCR catalysts in the future.

高二氧化硅的小孔硅铝酸盐沸石（例如SSZ-13）已在商业上用于用NH ₃（NH ₃ -SCR）选择性催化还原NOx ，但其合成通常需要使用对环境不利的有机模板。解决该问题的方法是在没有有机模板的情况下可持续合成高二氧化硅的小孔沸石。例子之一是8元环硅铝酸盐KFI沸石，其在常规合成中总是富含铝（Si / Al <4，KFI-4.0）。在本报告中，受高通量计算的启发，我们在存在K ⁺的情况下成功制备了具有KFI结构（Si / Al> 5，指定为ZJM-7）的新型高二氧化硅小孔沸石。。有趣的是，即使在850°C水热处理12 h后，Cu-ZJM-7催化剂在NH ₃ -SCR反应中仍显示出优异的性能。ZJM-7沸石的可持续合成与优异的催化性能相结合，可能为将来开发高效，低成本的SCR催化剂提供良好的机会。