期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 281, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2020.119480
关键词
KFI zeolite; High silica; Potassium-directed; Sustainable synthesis; NH3-SCR reaction
资金
- National Key Research and Development Program of China [2017YFC0211101]
- National Natural Science Foundation of China [21703203, 21673205, 21802121, 21835002]
- ChEM, SPST, ShanghaiTech [EM02161943]
- BASF
Inspired by high throughput calculations, a new high silica small pore zeolite with KFI structure (Si/Al > 5, designated as ZJM-7) was successfully prepared in the presence of K+. Interestingly, even after hydrothermal treatment at 850 degrees 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.
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 degrees 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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据