Recent advances in automotive catalysis for NO x emission control by small-pore microporous materials
The ever increasing demand to develop highly fuel efficient engines coincides with the need
to minimize air pollution originating from the exhaust gases of internal combustion engines …
to minimize air pollution originating from the exhaust gases of internal combustion engines …
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 …
commercially utilized for selective catalytic reduction (SCR) of NO x by NH 3. Despite the …
Catalysis in a cage: condition-dependent speciation and dynamics of exchanged Cu cations in SSZ-13 zeolites
The relationships among the macroscopic compositional parameters of a Cu-exchanged
SSZ-13 zeolite catalyst, the types and numbers of Cu active sites, and activity for the …
SSZ-13 zeolite catalyst, the types and numbers of Cu active sites, and activity for the …
Selective catalytic reduction over Cu/SSZ-13: linking homo-and heterogeneous catalysis
Active centers in Cu/SSZ-13 selective catalytic reduction (SCR) catalysts have been recently
identified as isolated Cu2+ and [CuII (OH)]+ ions. A redox reaction mechanism has also …
identified as isolated Cu2+ and [CuII (OH)]+ ions. A redox reaction mechanism has also …
Toward rational design of Cu/SSZ-13 selective catalytic reduction catalysts: implications from atomic-level understanding of hydrothermal stability
The hydrothermal stability of Cu/SSZ-13 SCR catalysts has been extensively studied, yet
atomic-level understanding of changes to the zeolite support and the Cu active sites during …
atomic-level understanding of changes to the zeolite support and the Cu active sites during …
Effects of Si/Al ratio on Cu/SSZ-13 NH3-SCR catalysts: Implications for the active Cu species and the roles of Brønsted acidity
Cu/SSZ-13 catalysts with three Si/Al ratios of 6, 12 and 35 were synthesized with Cu
incorporation via solution ion exchange. The implications of varying Si/Al ratios on the …
incorporation via solution ion exchange. The implications of varying Si/Al ratios on the …
On the Redox Mechanism of Low‐Temperature NH3‐SCR over Cu‐CHA: A Combined Experimental and Theoretical Study of the Reduction Half Cycle
Cu‐CHA is the state‐of‐the‐art catalyst for the Selective Catalytic Reduction (SCR) of NOx
in vehicle applications. Although extensively studied, diverse mechanistic proposals still …
in vehicle applications. Although extensively studied, diverse mechanistic proposals still …
Mechanistic Aspects of deNOx Processing over TiO2 Supported Co–Mn Oxide Catalysts: Structure–Activity Relationships and In Situ DRIFTs Analysis
Anatase TiO2-supported manganese and cobalt oxide catalysts with different Co/Mn molar
ratios were synthesized by a conventional impregnation method and used for selective …
ratios were synthesized by a conventional impregnation method and used for selective …
The Cu-CHA deNOx Catalyst in Action: Temperature-Dependent NH3-Assisted Selective Catalytic Reduction Monitored by Operando XAS and XES
The small-pore Cu-CHA zeolite is today the object of intensive research efforts to rationalize
its outstanding performance in the NH3-assisted selective catalytic reduction (SCR) of …
its outstanding performance in the NH3-assisted selective catalytic reduction (SCR) of …
Understanding ammonia selective catalytic reduction kinetics over Cu/SSZ-13 from motion of the Cu ions
Cu/SSZ-13 catalysts with Si/Al= 6 and various Cu/Al ratios are synthesized with solution ion
exchange. Catalysts are characterized with surface area/pore volume measurements …
exchange. Catalysts are characterized with surface area/pore volume measurements …