Global kinetic model of NO oxidation on Pd/gamma-Al2O3 catalyst including PdOx formation and reduction by CO and C3H6
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F20%3A43921256" target="_blank" >RIV/60461373:22340/20:43921256 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.apcatb.2019.118141" target="_blank" >https://doi.org/10.1016/j.apcatb.2019.118141</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apcatb.2019.118141" target="_blank" >10.1016/j.apcatb.2019.118141</a>
Alternative languages
Result language
angličtina
Original language name
Global kinetic model of NO oxidation on Pd/gamma-Al2O3 catalyst including PdOx formation and reduction by CO and C3H6
Original language description
Pd is often used in diesel oxidation catalysts (DOC) together with Pt to ensure thermal stability and durability. Besides CO and hydrocarbon oxidation, NO oxidation is important for the function of subsequent converters in the exhaust line, such as SCR and DPF. Though Pt sites exhibit a significantly higher NO oxidation rate, Pd also provide some catalytic activity for this reaction and therefore affect the overall NO2 yield in DOC. Palladium oxides (PdOx) formation decreases the NO oxidation activity like PtOx. We present a global kinetic model for Pd/gamma-Al2O3 catalyst considering standard DOC reactions extended with the PdOx formation and its influence on the NO2 yield. The dynamics of transition between the metallic Pd and oxidized PdOx state is studied in repeated temperature ramps and isothermal deactivation experiments, revealing the individual impact of O-2 and NO2. The model describes well a dual NO oxidation light-off behavior observed in the experiments.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20402 - Chemical process engineering
Result continuities
Project
<a href="/en/project/GA17-26018S" target="_blank" >GA17-26018S: Low temperature reaction kinetics in oxidation catalysts for diesel exhaust gas aftertreatment</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Catalysis B:Environment
ISSN
0926-3373
e-ISSN
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Volume of the periodical
260
Issue of the periodical within the volume
Neuveden
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
118141
UT code for WoS article
000496894300049
EID of the result in the Scopus database
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