Regulation of the Si/Al ratios and Al distributions of zeolites and their impact on properties

J Li, M Gao, W Yan, J Yu - Chemical Science, 2023 - pubs.rsc.org
Zeolites are typically a class of crystalline microporous aluminosilicates that are constructed
by SiO4 and AlO4 tetrahedra. Because of their unique porous structures, strong Brönsted …

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 …

Precise control of post-treatment significantly increases hydrothermal stability of in-situ synthesized cu-zeolites for NH3-SCR reaction

Y Shan, J Du, Y Yu, W Shan, X Shi, H He - Applied Catalysis B …, 2020 - Elsevier
The origin of the beneficial effects of post-treatment processing with HNO 3 and NH 4 NO 3
solutions on the catalytic performance of copper-amine templated zeolites used in the NH 3 …

Advances in emission control of diesel vehicles in China

G Xu, W Shan, Y Yu, Y Shan, X Wu, Y Wu… - Journal of …, 2023 - Elsevier
Diesel vehicles have caused serious environmental problems in China. Hence, the Chinese
government has launched serious actions against air pollution and imposed more stringent …

Building zeolites from precrystallized units: nanoscale architecture

C Li, M Moliner, A Corma - Angewandte Chemie International …, 2018 - Wiley Online Library
Since the early reports by Barrer in the 1940s on converting natural minerals into synthetic
zeolites, the use of precrystallized zeolites as crucial inorganic directing agents to …

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 …

Low‐silica Cu‐CHA Zeolite Enriched with Al Pairs Transcribed from Silicoaluminophosphate Seed: Synthesis and Ammonia Selective Catalytic Reduction …

Y Wang, J Han, M Chen, W Lv, P Meng… - Angewandte …, 2023 - Wiley Online Library
Cu‐exchanged low‐silica CHA zeolites (Si/Al≤ 4) synthesized without organic templates
are promising candidate catalysts for ammonia selective catalytic reduction of nitrogen …

Application progress of small-pore zeolites in purifying NOx from motor vehicle exhaust

H Cheng, X Tang, H Yi, R Pan, J Zhang, F Gao… - Chemical Engineering …, 2022 - Elsevier
Lean-burn mode results in the high NOx emission of diesel vehicles despite its high fuel
economy. NOx can be effectively removed by the SCR unit during normal operation …

On the key role of aluminium and other heteroatoms during interzeolite conversion synthesis

J Devos, MA Shah, M Dusselier - RSC advances, 2021 - pubs.rsc.org
Interzeolite conversion, a synthesis technique for several zeolite frameworks, has recently
yielded a large amount of high-performing catalytic zeolites. Yet, the mechanisms behind the …

Synthesis of hierarchical chabazite zeolite via interzeolite transformation of coke-containing spent MFI

D Li, Y Chen, J Hu, B Deng, X Cheng… - Applied Catalysis B …, 2020 - Elsevier
Nowadays, it's highly desirable to develop a sustainable strategy for utilizing the wasted
zeolite catalysts to selectively produce value-added and useful zeolites in industry. Herein …