One-pot synthesis of bimetallic CeCu-SAPO-34 for high-efficiency selective catalytic reduction of nitrogen oxides with NH<sub>3</sub> at low temperature

Shuang Qiu; Yonghou Xiao; Haoran Wu; Shengnan Lu; Qidong Zhao; Gaohong He

Your Location：

Home >

Browse articles >

One-pot synthesis of bimetallic CeCu-SAPO-34 for high-efficiency selective catalytic reduction of nitrogen oxides with NH₃ at low temperature

Full Length Article | Updated：2026-01-06

- One-pot synthesis of bimetallic CeCu-SAPO-34 for high-efficiency selective catalytic reduction of nitrogen oxides with NH₃ at low temperature
- Chinese Journal of Chemical Engineering Vol. 56, Issue 4, Pages: 193-202(2023)
- Affiliations：
  
  1. Panjin Institute of Industrial Technology, Liaoning Key Laboratory of Chemical Additive Synthesis and Separation, Dalian University of Technology,Panjin,China,124221
  2. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology,Panjin,China,124221
  3. School of Petrochemical Engineering, Shenyang University of Technology,Liaoyang,China,111003
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2023
- Accepted：
Scan QR Code
at low temperature[J]. 中国化学工程学报, 2023, 56(4): 193-202.
DOI：

at low temperature[J]. 中国化学工程学报, 2023, 56(4): 193-202. DOI：

摘要

Abstract

selective catalytic reduction (SCR) has been widely recognized as a promising technique for reducing nitrogen oxides from diesel vehicle exhausts. High-efficiency SCR catalysts that could perform at low temperatures are essential to denitration. In this work

a series of bimetallic CeCu-SAPO-34 molecular sieves were synthesized by one-step hydrothermal method. The CeCu-SAPO-34 maintained good crystallinity and a regular hexahedron appearance of Cu-SAPO-34 after introducing Ce species

while exhibiting a higher specific surface area and pore volume. The as-prepared CeCu-SAPO-34 with 0.02% (mass) Ce constituent exhibited the best catalytic activity below 300 ℃ and a maximum NO

conversion of 99% was attained; the NO

removal rates of more than 68% and 94% were achieved at 150 ℃ and 200 ℃

respectively. And the introduction of cerium species in Cu-SAPO-34 improves the low-temperature hydrothermal stability of the catalyst towards NH

-SCR reaction. Additionally

the introduced Ce species could enhance the formation of abundant weak Brønsted acid centers and promote the synergistic effect between CuO grains and

isolated Cu

to enhance the redox cycle

which benefit the NH

-SCR reaction. This work provides a facile synthesis method of high-efficiency SCR denitration catalysts towards diesel vehicles exhaust treatment under low temperature.

关键词

Keywords

references

Views

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

Redistributing Cu species in Cu-SSZ-13 zeolite as NH3-SCR catalyst via a simple ion-exchange

CO2 leakage behavior from CO2 hydrate-liquid CO2-seawater coexistence system in unsealed sediments

Non-phosgene synthesis processes of isocyanates: One-step and two-step routes

Biochar as a structure-tunable stationary phase for column chromatographic fractionation of bio-oil

CO2 capture by ternary ionic liquid non-aqueous phase change solvents

Related Author

Ben Liu

Nangui Lv

Chan Wang

Hongwei Zhang

Yuanyuan Yue

Jingdong Xu

Xiaotao Bi

Xiaojun Bao

Related Institution

National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University

Qingyuan Innovation Laboratory

Sinochem Quanzhou Energy Technology Co, Ltd

Department of Chemical & Biological Engineering, University of British Columbia, 2360 East Mall,, BC

State Key Laboratory of Photocatalysis on Energy & Environment, College of Chemistry, Fuzhou University

⁰

One-pot synthesis of bimetallic CeCu-SAPO-34 for high-efficiency selective catalytic reduction of nitrogen oxides with NH3 at low temperature

DOI：

摘要

Abstract

关键词

Keywords

references

One-pot synthesis of bimetallic CeCu-SAPO-34 for high-efficiency selective catalytic reduction of nitrogen oxides with NH₃ at low temperature