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 …

NOx reduction behaviour in copper zeolite catalysts for ammonia SCR systems: A review

S Mohan, P Dinesha, S Kumar - Chemical Engineering Journal, 2020 - Elsevier
This paper reviews the current copper substituted zeolite catalysts, their operating
temperature ranges with NOx reduction efficiencies and their deactivation mechanisms …

New insights into Cu/SSZ-13 SCR catalyst acidity. Part I: Nature of acidic sites probed by NH3 titration

J Luo, F Gao, K Kamasamudram, N Currier… - Journal of catalysis, 2017 - Elsevier
In this work we investigated an unusual acidity feature of a Cu/SSZ-13 catalyst used in
selective catalytic reduction of NOx with NH 3 (NH 3-SCR). In particular, this catalyst showed …

Characterization of Cu-exchanged SSZ-13: a comparative FTIR, UV-Vis, and EPR study with Cu-ZSM-5 and Cu-β with similar Si/Al and Cu/Al ratios

F Giordanino, PNR Vennestrøm, LF Lundegaard… - Dalton …, 2013 - pubs.rsc.org
Cu-SSZ-13 has been characterized by different spectroscopic techniques and compared
with Cu-ZSM-5 and Cu-β with similar Si/Al and Cu/Al ratios and prepared by the same ion …

Local Environment and Nature of Cu Active Sites in Zeolite-Based Catalysts for the Selective Catalytic Reduction of NOx

U Deka, I Lezcano-Gonzalez, BM Weckhuysen… - Acs …, 2013 - ACS Publications
Cu-exchanged zeolites have demonstrated widespread use as catalyst materials in the
abatement of NO x, especially from mobile sources. Recent studies focusing on Cu …

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 …

Environmentally-benign catalysts for the selective catalytic reduction of NO x from diesel engines: structure–activity relationship and reaction mechanism aspects

F Liu, Y Yu, H He - Chemical communications, 2014 - pubs.rsc.org
Selective catalytic reduction of NOx using NH3 or hydrocarbons (NH3-SCR or HC-SCR) in
oxygen-rich exhaust from diesel engines remains a major challenge in environmental …

Unveiling mechanism and the roles of distinct active sites over Cu/Beta@ CeO2 with strong core-shell interface interaction for simultaneous removal of NO and …

S Jiang, L Zhang, L Zhao, J Zhang, Y Huang - Chemical Engineering …, 2023 - Elsevier
The development of multifunctional catalysts to remove NO and toluene simultaneously from
flue gases remains challenging due to the competing effects of the constituents gas …

Role of the different copper species on the activity of Cu/zeolite catalysts for SCR of NOx with NH3

B Pereda-Ayo, U De La Torre, MJ Illán-Gómez… - Applied Catalysis B …, 2014 - Elsevier
The SCR of NO x with NH 3 has been studied by using different Cu zeolite catalysts,
prepared both with ZSM5 and BETA zeolite supports by ionic exchange or by impregnation …

N2O Formation Pathways over Zeolite-Supported Cu and Fe Catalysts in NH3-SCR

D Zhang, RT Yang - Energy & fuels, 2018 - ACS Publications
N2O is a common byproduct in the NH3-SCR reaction. We analyzed the N2O formation
pathways in NH3-SCR over various catalysts (Cu-ZSM-5, Fe-ZSM-5, Cu-SAPO-34, Fe-SAPO …