Insight into Platinum Poisoning Effect on Cu-SSZ-13 in Selective Catalytic Reduction of NOx with NH3
نویسندگان
چکیده
Platinum’s (Pt) poisoning effect on Cu-SSZ-13 and its regeneration were investigated. The Pt enhanced the parallel reactions, such as NH3 oxidation NO which decreased deNOx activities. In temperature range below 330 °C, deactivation of by was primarily caused overconsumption NH3, due to NH3-selective reaction, while formation NOx in into NO2 further aggravated degradation when above 460 °C. non-selective catalytic reduction reactions resulted increased N2O over Pt-doped samples. transformation Pt0 PtOx after hydrothermal aging recovered activities Pt-poisoned
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ژورنال
عنوان ژورنال: Catalysts
سال: 2021
ISSN: ['2073-4344']
DOI: https://doi.org/10.3390/catal11070796