Elucidating N2O Formation during the Cyclic NOx Storage and Reduction Process Using CO as a Reductant.
作者： Jun Wang , Xiuting Wang , Jinxin Zhu , Jianqiang Wang , Meiqing Shen
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摘要: The N2O formation pathway and effect of H2O on during the NOx storage reduction (NSR) process using CO as a reductant were investigated over Pt–BaO/Al2O3 catalyst. NSR activity measurements transient in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) experiments performed to evaluate evolution elucidate mechanism. is formed lean, rich, delay2 phases. In lean phase, related reactions between surface isocyanate gaseous NO/O2 NO more responsible for than O2. Moreover, production decreases with because hydrolysis species. rich amount also presence at higher temperature high ability H2 generated from water–gas shift (WGS) reaction. During mainly by nitrite species reacting Pt0–CO. Furthermore, presen...
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