Heterogeneous oxidation of carbonyl sulfide on mineral oxides
文献类型：期刊论文
| 作者 | Liu YongChun ; Liu JunFeng ; He Hong ; Yu YunBo ; Xue Li |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2007-08 |
| 卷号 | 52期号:15页码:2063-2071 |
| 关键词 | carbonyl sulfide mineral oxides sulfate heterogeneous reaction in situ DRIFTS |
| 英文摘要 | Heterogeneous oxidation of carbonyl sulfide (OCS) on mineral oxides including SiO2, Fe2O3, CaO, MgO ZnO and TiO2, which are the main components of atmospheric particles, were investigated using in situ diffuse reflectance infrared Fourier transform spectroscopy (in situ DRIFTS), ion chromatography (IC), temperature-programmed desorption (TPD), X-ray diffraction (XRD) and Brunauer-Emmett-Teller (BET) methods. The main products and intermediates of the heterogeneous oxidation of OCS on these oxides were identified with in situ DRIFTS and IC. The reaction mechanism and kinetics were also discussed. It is found that the reaction mechanism on these mineral oxides is the same as that on Al2O3 for the same final products and the intermediates at room temperature. Namely, OCS can be catalytically oxidized to produce surface SO42- species and gaseous CO2 through the surface hydrogen thlocarbonate (HSCO2) and HSO3 species. The activity series for heterogeneous oxidation of OCS follows: Al2O3 = CaO > MgO > TiO2 = ZnO > Fe2O3 > SiO2. The specific area, basic hydroxyl and surface basicity of these oxides have effect on the reactivity. This study suggests that heterogeneous reactions of OCS on mineral dust may be an unneglectable sink of OCS. |
| WOS记录号 | WOS:000248663700008 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22406]  |
| 专题 | 生态环境研究中心_大气环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Liu YongChun,Liu JunFeng,He Hong,et al. Heterogeneous oxidation of carbonyl sulfide on mineral oxides[J]. CHINESE SCIENCE BULLETIN,2007,52(15):2063-2071. |
| APA | Liu YongChun,Liu JunFeng,He Hong,Yu YunBo,&Xue Li.(2007).Heterogeneous oxidation of carbonyl sulfide on mineral oxides.CHINESE SCIENCE BULLETIN,52(15),2063-2071. |
| MLA | Liu YongChun,et al."Heterogeneous oxidation of carbonyl sulfide on mineral oxides".CHINESE SCIENCE BULLETIN 52.15(2007):2063-2071. |
入库方式： OAI收割
来源：生态环境研究中心
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