The heterogeneous reaction of NO_(2)on NaCl particles has been investigated with the new sample preparation and the mode of gas-solid free diffusion.Diffuse Reflectance Infrared Fourier Transform Spectroscopy(DRIFTS)i...The heterogeneous reaction of NO_(2)on NaCl particles has been investigated with the new sample preparation and the mode of gas-solid free diffusion.Diffuse Reflectance Infrared Fourier Transform Spectroscopy(DRIFTS)is used to characterize the adsorbed products in situ,combined with Ion Chromatographic(IC),X-ray Photoelectron Spectroscopy(XPS)and Scan Electron Micros-copy(SEM).Our results indicate that the reaction is not limited to the surface of the NaCl particles,but penetrated into the upper layers.Surface reactive sites determine the reaction.Kinetic measurements show that nitrate formation on sodium chloride is second order in NO_(2)concentration and reactive uptake coefficient is(1.54±0.70)×10^(-5).展开更多
基金This work was supported by the National Basic Research Priorities Program(973)(Grant No.2002CB410802)the National Natural Science Foundation of China(Grant No.20077001)the Key Project of Ministry of Education of China.
文摘The heterogeneous reaction of NO_(2)on NaCl particles has been investigated with the new sample preparation and the mode of gas-solid free diffusion.Diffuse Reflectance Infrared Fourier Transform Spectroscopy(DRIFTS)is used to characterize the adsorbed products in situ,combined with Ion Chromatographic(IC),X-ray Photoelectron Spectroscopy(XPS)and Scan Electron Micros-copy(SEM).Our results indicate that the reaction is not limited to the surface of the NaCl particles,but penetrated into the upper layers.Surface reactive sites determine the reaction.Kinetic measurements show that nitrate formation on sodium chloride is second order in NO_(2)concentration and reactive uptake coefficient is(1.54±0.70)×10^(-5).
