Keywords hydrogen;silver;copper;alumina;nitrogen oxide;selective catalytic reduction;in situ diffuse reflectance infrared Fourier transform spectroscopy;enolic species;isocyanate species;

• 氢;银;铜;氧化铝;氮氧化物;选择性催化还原;原位漫反射红外光谱;烯醇式物种;异氰酸酯;