Spatially and Temporally Resolved Measurements of NO Adsorption/Desorption over NOx‐Storage Catalyst
Sign Up to like & getrecommendations! Published in 2020 at "Chemphyschem"
DOI: 10.1002/cphc.202000765
Abstract: Abstract The two‐dimensional (2D) temporal evolution of the NO‐concentration over a NOx‐storage catalyst is investigated in situ with planar laser‐induced fluorescence (PLIF) in an optically accessible parallel wall channel reactor. Signal accumulated phase‐correlated 2D‐recordings of repetitive… read more here.
Keywords: adsorption desorption; storage catalyst; nox storage;
Modelling NOX Storage and Thermal Desorption: Is It Possible to Model the Effect of Changing the Catalyst Composition?
Sign Up to like & getrecommendations! Published in 2018 at "Topics in Catalysis"
DOI: 10.1007/s11244-018-1091-2
Abstract: In this work, a series of model NOX storage catalysts with different Pt and Ba loadings (in the range 0–2 wt% and 0–20 wt%, respectively) have been studied for NOX storage and desorption. The samples… read more here.
Keywords: thermal desorption; model; storage thermal; nox storage ... See more keywords
Chemical poisoning by zinc and phosphorous of Pt/Ba/Al2O3 NOx storage catalysts
Sign Up to like & getrecommendations! Published in 2019 at "Applied Catalysis A: General"
DOI: 10.1016/j.apcata.2018.11.027
Abstract: Abstract The effects of phosphorous and zinc on the performance of Pt/Ba/Al2O3 catalysts were investigated through wet impregnation of ammonium phosphate and zinc acetate aqueous solutions. Six different sample combinations were studied; 1 wt-% P, 1 wt-%… read more here.
Keywords: nox storage; spectroscopy; al2o3; zinc phosphorous ... See more keywords
The influence of Pt loading and dispersion on the NOx storage and reduction performance of Pt/K2CO3/Co1Mg2Al1Ox catalysts
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DOI: 10.1016/j.cattod.2018.11.025
Abstract: Abstract For NOx storage and reduction (NSR) catalysts, Pt is necessary for the NO oxidation during the lean stage and the NOx reduction during the rich stage. However, due to its high price, synthesis of… read more here.
Keywords: dispersion; k2co3 co1mg2al1ox; nox storage; storage ... See more keywords
NOx Storage Performance at Low Temperature over Platinum Group Metal-Free SrTiO3-Based Material.
Sign Up to like & getrecommendations! Published in 2021 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.1c03465
Abstract: Pt-based catalysts are commonly employed as NOx-trapping catalysts for automobiles, while perovskite oxides have received attention as Pt-free NOx-trapping catalysts. However, the NOx storage performance of perovskite catalysts is significantly inferior at low temperatures and… read more here.
Keywords: storage; storage performance; nox storage; doped srtio3 ... See more keywords
The Influence Of NO/O2 On The NOx Storage Properties Over A Pt-Ba-Ce/γ-Al2O3 Catalyst
Sign Up to like & getrecommendations! Published in 2019 at "Open Chemistry"
DOI: 10.1515/chem-2019-0153
Abstract: Abstract With the purpose of studying the influence of NO/O2 on the NOx storage activity, a Pt-Ba-Ce/γ-Al2O3 catalyst was synthesized by an acid-aided sol-gel method. The physical and chemical properties of the catalyst were characterized… read more here.
Keywords: storage; al2o3 catalyst; nox storage; catalyst ... See more keywords
Improved NOx Storage/Release Properties of Ceria-Based Lean NOx Trap Compositions with MnOx Modification
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DOI: 10.3390/ma12132127
Abstract: Ceria/spinel-based lean NOx trap compositions with and without barium were modified with MnOx via incipient wetness impregnation. The effect of the MnOx layer on the aged materials (850 °C) as to the NOx storage and… read more here.
Keywords: storage; based lean; lean nox; nox trap ... See more keywords
NOx Storage on BaTi0.8Cu0.2O3 Perovskite Catalysts: Addressing a Feasible Mechanism
Sign Up to like & getrecommendations! Published in 2021 at "Nanomaterials"
DOI: 10.3390/nano11082133
Abstract: The NOx storage mechanism on BaTi0.8Cu0.2O3 catalyst were studied using different techniques. The results obtained by XRD, ATR, TGA and XPS under NOx storage–regeneration conditions revealed that BaO generated on the catalyst by decomposition of… read more here.
Keywords: storage; catalyst; storage bati0; nox storage ... See more keywords