Coaxial 3D Printing of Zeolite‐Based Core–Shell Monolithic Cu‐SSZ‐13@SiO2 Catalysts for Diesel Exhaust Treatment

Y Wei, S Wang, M Chen, J Han, G Yang… - Advanced …, 2024 - Wiley Online Library
Core–shell catalysts with functional shells can increase the activity and stability of the
catalysts in selective catalytic reduction of NOx with ammoniax. However, the conventional …

Investigation of Low-Temperature OHC and RHC in NH3–SCR over Cu-CHA Catalysts: Effects of H2O and SAR

ND Nasello, U Iacobone, N Usberti, A Gjetja… - ACS …, 2024 - ACS Publications
A transient kinetic approach was applied to independently investigate the oxidation half-
cycle (OHC) and reduction half-cycle (RHC) of NH3–selective catalytic reduction (SCR) at …

[HTML][HTML] Assessing Cu2+ active sites evolution on Cu-SSZ-13 NH3-SCR catalysts during hydrothermal aging: A transient response approach

U Iacobone, ND Nasello, I Nova, E Tronconi… - Applied Catalysis B …, 2024 - Elsevier
Hydrothermal aging (HTA) conditions are commonly reached in Diesel engine NH 3-SCR
architectures based on Cu-CHA catalysts, altering the catalyst performance due to …

Breath moisture-induced electroactive nanofibrous membrane for efficient antibacterial and antiviral air filtration

J Chen, S Zhang, Y Dou, G Han, N Wang, Z Qu… - Separation and …, 2024 - Elsevier
The high humidity environment created by human breath can easily lead to charge loss in
the mask's filter and weaken the mask's filtration effect on aerosols containing bacteria and …

Mechanisms and site requirements for NO and NH3 oxidation on Cu/SSZ-13

Y Wang, R Zhao, KG Rappé, Y Wang, F Che… - Applied Catalysis B …, 2024 - Elsevier
Two series of Cu/SSZ-13 catalysts were synthesized via aqueous solution and solid-state
ion exchange using SSZ-13 supports of varying Si/Al ratios. The isolated and multinuclear …

NH3 and N2O emission durability of the heavy-duty diesel engine with DOC, DPF, SCR, and ASC through the accelerated aging method

L Lyu, W Sun, P Feng, H Wang, L Hao, J Tan, X Wang… - Fuel, 2023 - Elsevier
A general accelerated aging method for aftertreatment devices of Heavy-duty Diesel Engine
(HDDE) is proposed in this paper, and three sets of aftertreatment devices were aged …

Inhibiting the Formation of Toxic HCN Induced by C3H6 Coexistence and Enhancing C3H6 Resistance of Cu-Zeolite in the NH3–SCR Reaction

Y Sun, T Zhang, W Ding, J Liu, D Liu, J Du… - Environmental …, 2024 - ACS Publications
The presence of light hydrocarbons (HCs) in diesel exhaust, specifically C3H6, significantly
affects the performance of the state-of-the-art Cu-SSZ-13 zeolite NH3–SCR catalysts. It also …

[HTML][HTML] FEA assessment of contact pressure and von mises stress in gasket material suitability for PEMFCs in electric vehicles

SH Park, AB Kareem, WJ Joo, JW Hur - Inventions, 2023 - mdpi.com
Ensuring the safety of electric vehicles is paramount, and one critical concern is the potential
for hazardous hydrogen fuel leaks caused by the degradation of Proton-Exchange …

Poisoning of copper chabazite catalyst by biodiesel metal contaminants: effect of alkali and alkaline earth metals

V Mesilov, B Zhuang, S **… - The Journal of Physical …, 2023 - ACS Publications
Biodiesel is an environmentally friendly fuel that may partially replace petroleum diesel in
transportation. One possible disadvantage of biodiesel is that alkali and alkaline earth …

Facile Synthesis of Cu-Exchanged Zeolite Catalysts with Only Cu2+-2Z Species: Enhancing Hydrothermal Stability and Sulfur Resistance for NH3–SCR

J Lin, X Hu, X Tan, Y Zhang, C Lin… - … Science & Technology, 2024 - ACS Publications
For Cu-exchanged zeolite catalysts, Cu2+ ions existing as Cu2+-2Z and [Cu (OH)]+-Z
(where Z represents a framework negative charge) are considered the active sites for the …