大连理工大学学报2016，Vol.56Issue(4)：348-354,7.DOI:10.7511/dllgxb201604004
金属有机骨架MIL-100（Fe）担载CeO2复合脱硝催化剂抗硫性能研究
Research on performance of resistance to SO2 of deNOx catalyst metal-organic framework MIL-100(Fe)loading CeO2
摘要
Abstract
In the selective catalytic reduction (SCR)reaction,SO2 has the important effect on the catalytic activity of deNOx catalyst.The prepared metal-organic frameworks (MOFs)MIL-100(Fe) (materials of Institute Lavoisier,MIL)loading ceria catalyst by impregnation method shows 9 1%NOx conversion in 10 h at 250 ℃ with the presence of 500×10-6 SO2 in the SCR reaction,higher than that of 83% over MIL-100 (Fe)catalyst.The results of in situ diffuse reflectance infrared Fourier transform (DRIFT)spectroscopy experiments demonstrate that the intensity of NH+4 species adsorbed on the Brønsted sites of MIL-100(Fe)surface decreases due to the presence of SO2 ,which reduces the NOx conversion over MIL-100(Fe)in the SCR reaction.The addition of ceria in MIL-100(Fe)catalyst effectively inhibits the effect of SO2 on the adsorbed NH+4 species on the Brønsted sites,which increases NOx conversion and improves the ability of resistance to SO2 of the composite catalyst in the SCR reaction.关键词
选择催化还原/抗硫/金属有机骨架/CeO2/MIL-100(Fe)Key words
selective catalytic reduction (SCR )/resistance to SO2/metal-organic frameworks (MOFs)/CeO2/MIL-100(Fe)分类
资源环境引用本文复制引用
汪鹏,赵慧敏,陈硕,全燮..金属有机骨架MIL-100（Fe）担载CeO2复合脱硝催化剂抗硫性能研究[J].大连理工大学学报,2016,56(4):348-354,7.基金项目
国家自然科学基金资助项目(21590813) （21590813）
