Facile and template-free synthesis of nano-macroporous LaCoO3 perovskite oxide for efficient diesel soot oxidation
نویسندگان
چکیده
The basic LaCoO3 perovskite oxides were prepared by the series of methods (reverse co-precipitation, citric acid aided sol–gel, glycine assisted solution combustion), underwent physicochemical characterization (XRD, FTIR, BET, XPS and SEM), followed their soot oxidation activity tests in both “loose” “tight” conditions soot-catalyst contact. revealed that catalyst formed using combustion synthesis gives best performance with T10, T50, T90 at 361 °C, 404 °C 445 respectively, loose contact 306 330 355 tight conditions. Its outstanding can be attributed to its unique morphology consisting scaffolds having an extensively interconnected macroporous network macropores nanoporous struts as walls evidenced SEM results. Such makes active sites inner pores accessible gaseous (air) well solid reactant (soot particles), thereby benefitting reaction.
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ژورنال
عنوان ژورنال: Reaction Kinetics, Mechanisms and Catalysis
سال: 2022
ISSN: ['1878-5204', '1878-5190']
DOI: https://doi.org/10.1007/s11144-022-02219-5