Enhanced NH3-SCR activity of Cu-SAPO-34 by regulating Si distribution via an interzeolite conversion strategy

Yuxuan Xiao; Bohui Cai; Huifang Wu; Hui Wang; Jiachen Wang; Junyan Liu; Runyu Ma; Tianming Lv; Lei Miao; Jiaxu Liu; Chengyang Yin; Changgong Meng; Limin Ren

doi:10.1039/d4cc04979a

Enhanced NH₃-SCR activity of Cu-SAPO-34 by regulating Si distribution via an interzeolite conversion strategy

Chem Commun (Camb). 2024 Dec 17. doi: 10.1039/d4cc04979a. Online ahead of print.

Authors

Yuxuan Xiao¹, Bohui Cai², Huifang Wu¹, Hui Wang³, Jiachen Wang³, Junyan Liu², Runyu Ma¹, Tianming Lv⁴, Lei Miao¹, Jiaxu Liu³, Chengyang Yin², Changgong Meng^{1

5}, Limin Ren¹

Affiliations

¹ School of Chemistry, Dalian University of Technology, Dalian 116024, China. [email protected].
² Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, China. [email protected].
³ School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China.
⁴ Instrumental Analysis Center, Dalian University of Technology, Dalian 116024, China.
⁵ College of Environmental and Chemical Engineering, Dalian University, Dalian 116622, China.

PMID: 39688916
DOI: 10.1039/d4cc04979a

Abstract

An interzeolite conversion (IZC) method was developed for the rapid synthesis of Cu-SAPO-34 from SAPO-37, achieving isolated Si distribution and optimized Cu states. The resulting Cu-SAPO-34 exhibited exceptional NH₃-SCR performance, with over 90% NO conversion from 200-600 °C due to proper acidity and Cu status generated from the isolated Si.