The effects of ceria loading on three-way catalysts for passive SCR operation
نویسندگان
چکیده
Passive SCR systems, which employ both a three-way catalyst and catalyst, are effective for the reduction of nitrogen oxide (NOx) emissions from lean burn gasoline engines. However, questions remain regarding effect formulations on their performance in these systems. Here, Pd/CeOx/Al2O3 catalysts with variable CeOx loading were synthesized, characterized, evaluated to determine effects performance. While small amount ceria was beneficial promoting essential reactions, excess detrimental due increase oxygen storage capacity. Additionally, insights into potential reaction pathways NH3 production determined.
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ژورنال
عنوان ژورنال: Catalysis Communications
سال: 2021
ISSN: ['1566-7367', '1873-3905']
DOI: https://doi.org/10.1016/j.catcom.2021.106308