Heterogeneous reaction of NO_(2) on the surface of NaCl particles  

作　　者：LI Hongjun ZHU Tong DING Jie CHEN Qi XU Bingye 

机构地区：[1]State Key Joint Laboratory of Environment Simulation and Pollution Control,College of Environmental Science,Peking University,Beijing 100871,China

出　　处：《Science China Chemistry》2006年第4期371-378,共8页中国科学(化学英文版)

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.

摘　　要：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).

关 键 词：DRIFTS gas-solid diffusion heterogeneous reaction reaction order reactiveuptake coefficient 

分 类 号：N[自然科学总论]