Selective Catalytic Reduction of NOx with NH3 by Using Novel Catalysts: State of the Art and Future Prospects

L Han, S Cai, M Gao, J Hasegawa, P Wang… - Chemical …, 2019 - ACS Publications
Selective catalytic reduction with NH3 (NH3–SCR) is the most efficient technology to reduce
the emission of nitrogen oxides (NO x) from coal-fired industries, diesel engines, etc …

Selective catalytic reduction of NOx with NH3: opportunities and challenges of Cu-based small-pore zeolites

Y Shan, J Du, Y Zhang, W Shan, X Shi… - National science …, 2021 - academic.oup.com
Zeolites, as efficient and stable catalysts, are widely used in the environmental catalysis
field. Typically, Cu-SSZ-13 with small-pore structure shows excellent catalytic activity for …

Unveiling Secondary-Ion-Promoted Catalytic Properties of Cu-SSZ-13 Zeolites for Selective Catalytic Reduction of NOx

M Chen, J Li, W Xue, S Wang, J Han… - Journal of the …, 2022 - ACS Publications
The incorporation of secondary metal ions into Cu-exchanged SSZ-13 zeolites could
improve their catalytic properties in selective catalytic reduction of NO x with ammonia (NH3 …

Recent progress in the improvement of hydrothermal stability of zeolites

R Simancas, A Chokkalingam, SP Elangovan, Z Liu… - Chemical …, 2021 - pubs.rsc.org
Zeolites have been successfully employed in many catalytic reactions of industrial
relevance. The severe conditions required in some processes, where high temperatures are …

Highlights on Key Roles of Y on the Hydrothermal Stability at 900 °C of Cu/SSZ-39 for NH3-SCR

Q Lin, S Xu, H Zhao, S Liu, H Xu, Y Dan, Y Chen - ACS Catalysis, 2022 - ACS Publications
The continuously updated after-treatment system of diesel engines drives the selective
catalytic reduction of ammonia (NH3-SCR) catalysts to withstand hydrothermal stability at …

Role of Ce in promoting low-temperature performance and hydrothermal stability of Ce/Cu-SSZ-13 in the selective catalytic reduction of NOx with NH3

B Wang, X Feng, Y Xu, JW Shi - Separation and Purification Technology, 2023 - Elsevier
With the increase of car ownership, new challenges are posed to the treatment of mobile
source exhaust gas, especially denitration (de-NO x). It is urgent to develop highly efficient …

La ions-enhanced NH3-SCR performance over Cu-SSZ-13 catalysts

M Chen, W Zhao, Y Wei, J Han, J Li, C Sun, D Mei, J Yu - Nano Research, 2023 - Springer
Lanthanum (La) ions are generally recognized to cause a decline of the catalytic
performance for Cu-SSZ-13 zeolite in the selective catalytic reduction of NO x with NH3 …

Cu/SSZ-13 and Cu/SAPO-34 catalysts for deNOx in diesel exhaust: Current status, challenges, and future perspectives

S Zhang, L Pang, Z Chen, S Ming, Y Dong, Q Liu… - Applied Catalysis A …, 2020 - Elsevier
Copper-exchanged SSZ-13 and SAPO-34 (Cu/CHA) zeolites catalysts have been
commercially utilized for selective catalytic reduction (SCR) of NO x by NH 3. Despite the …

In Situ Spectroscopic Studies on the Redox Cycle of NH3−SCR over Cu−CHA Zeolites

C Liu, H Kubota, T Amada, K Kon, T Toyao… - …, 2020 - Wiley Online Library
The selective catalytic reduction of NO with ammonia (NH3− SCR) catalyzed by Cu− CHA
zeolites is thoroughly investigated using in situ spectroscopic experiments combined with on …

Enhanced low-temperature performance of Al-rich Cu-SSZ-13 by Ce modification upon hydrothermal aging for NH3-SCR

Y Shen, T Li, J Yang, A Wang, L Wang, W Zhan… - Chemical Engineering …, 2023 - Elsevier
Abstract 3wt.% Cu/SSZ-13 (Cu 3/Z) and Ce modified 3wt.% Cu/SSZ-13 (Ce-Cu 3/Z) catalysts
were prepared and then hydrothermally aged. The Ce-modified Ce-Cu 3/Z catalyst revealed …