Metal sites in zeolites: synthesis, characterization, and catalysis

Q Zhang, S Gao, J Yu - Chemical reviews, 2022 - ACS Publications
Zeolites with ordered microporous systems, distinct framework topologies, good spatial
nanoconfinement effects, and superior (hydro) thermal stability are an ideal scaffold for …

Progress and future challenges in passive NO adsorption over Pd/zeolite catalysts

H Zhao, AJ Hill, L Ma, A Bhat, G Jing… - Catalysis Science & …, 2021 - pubs.rsc.org
Future emission standards are becoming increasingly stringent. Around 50% of targeted
tailpipe emissions are emitted during the cold-start period, mainly due to the ineffectiveness …

Cold-Start NOx Mitigation by Passive Adsorption Using Pd-Exchanged Zeolites: From Material Design to Mechanism Understanding and System Integration

Y Li, D Chen, X Xu, X Wang, R Kang, M Fu… - Environmental …, 2023 - ACS Publications
It remains a major challenge to abate efficiently the harmful nitrogen oxides (NO x) in low-
temperature diesel exhausts emitted during the cold-start period of engine operation …

The study of Pd-SSZ-13 as low-temperature passive NOx adsorber materials: High dispersal of Pd in small-pore CHA zeolites by thermal treatment

Y Wang, X Shi, Z Liu, Y Shan, W Shi, Y Yu… - Applied Catalysis B …, 2023 - Elsevier
In this work, Pd-SSZ-13 catalysts with 1.0 wt% Pd loading were studied as passive NO x
adsorber (PNA) materials. A series of Pd-SSZ-13 catalysts were prepared by calcination of …

Unravelling Phosphorus-Induced Deactivation of Pd-SSZ-13 for Passive NOx Adsorption and CO Oxidation

D Chen, H Lei, W Xiong, Y Li, X Ji, JY Yang… - ACS …, 2021 - ACS Publications
Phosphorus (P) originating from lubricant oil additives or biofuels is an emerging chemical
poison in catalytic systems for automotive exhaust after-treatment. Here, we demonstrate …

Redox-Driven Reversible Structural Evolution of Isolated Silver Atoms Anchored to Specific Sites on γ-Al2O3

H Kubota, S Mine, T Toyao, Z Maeno, K Shimizu - ACS Catalysis, 2021 - ACS Publications
Reversible structural transformation between atomic Ag (I) and large Ag metal nanoparticles
(NPs) on γ-Al2O3-supported Ag (Ag/Al2O3) catalysts for H2-assisted NO x selective catalytic …

Roles of the basic metals La, Ba, and Sr as additives in Al2O3-supported Pd-based three-way catalysts

Y Jing, G Wang, KW Ting, Z Maeno, K Oshima… - Journal of catalysis, 2021 - Elsevier
Three-way catalytic converters are widely used to regulate emissions from gasoline-
powered vehicles. Although significant effort over the past 40 years has resulted in the …

Na co-cations promoted stability and activity of Pd/SSZ-13 for low-temperature NO adsorption

D Li, G Yang, M Chen, L Pang, Y Guo, J Yu… - Applied Catalysis B …, 2022 - Elsevier
The abatement of harmful nitrogen oxides (NO x) emission during vehicle cold start is
challenging. Passive NO x adsorbers (PNAs) have proven to effectively alleviate NO x …

[HTML][HTML] Enhanced CO resistance of Pd/SSZ-13 for passive NOx adsorption

D Yao, PH Ho, RF Ilmasani, JC Wurzenberger… - Chemical Engineering …, 2023 - Elsevier
Passive NO x adsorption (PNA) is a novel technology to control NO x emissions during cold
start. However, the recent generation of PNA material, Pd/zeolite, suffers from major …

[HTML][HTML] Kinetic modeling of CO assisted passive NOx adsorption on Pd/SSZ-13

D Yao, RF Ilmasani, JC Wurzenberger, T Glatz… - Chemical Engineering …, 2022 - Elsevier
Passive NO x adsorption (PNA) has been recently developed as a promising technology for
controlling the NO x emissions during the cold start period. In this work, we illustrate a CO …