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†

Yuxuan Xiao,^a Bohui Cai,^b Huifang Wu,^a Hui Wang,

^c Jiachen Wang,^c Junyan Liu,^b Runyu Ma,^a Tianming Lv,^d Lei Miao,^a Jiaxu Liu,

^c Chengyang Yin,*^b Changgong Meng

*^ae and Limin Ren

*^a

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* Corresponding authors

^a School of Chemistry, Dalian University of Technology, Dalian 116024, China
E-mail: lren@dlut.edu.cn, cgmeng@dlut.edu.cn

^b Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, China
E-mail: chengyang_yin@163.com

^c School of Chemical Engineering, Dalian University of Technology, Dalian, China

^d Instrumental Analysis Center, Dalian University of Technology, Dalian 116024, China

^e College of Environmental and Chemical Engineering, Dalian University, Dalian 116622, China

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.

Chemical Communications

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

Abstract

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

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