燃料化学学报2016，Vol.44Issue(8)：954-960,7.
非晶态CeO2@TiO2催化剂的结构、性质及其选择催化还原脱硝性能
Structure and properties of amorphous CeO2@TiO2 catalyst and its performance in the selective catalytic reduction of NO with NH3
摘要
Abstract
Amorphous CeO2@TiO2 catalyst was prepared by spontaneous deposition method and characterized by XRD, Raman spectra, TEM, N2 physisorption, H2-TPR, NH3-TPD and FT-IR; its performance in the selective catalytic reduction ( SCR) of NO with NH3 was investigated. The results show that there is a strong interaction between Ce and Ti which are combined at atomic level. In comparison with the crystal CeO2/TiO2 catalyst prepared by impregnation, the amorphous CeO2@ TiO2 catalyst exhibits larger surface area and pore volume, excellent redox ability and acidity, and outstanding catalytic performance in SCR. Over the CeO2@TiO2 catalyst, the conversion of NO reaches 80% at 175 ℃ and retains 96. 0% -99. 4% at 200-400 ℃. Moreover, the amorphous CeO2@TiO2 catalyst also shows strong resistance to H2 O and SO2 poisoning.关键词
非晶态/CeO2TiO2/选择性催化还原/自发沉积法/脱硝/抗二氧化硫Key words
amorphous phase/CeO2TiO2/selective catalytic reduction ( SCR )/spontaneous deposition/denitration NO/SO2 poisoning分类
化学化工引用本文复制引用
刘俊,王亮亮,费兆阳,陈献,汤吉海,崔咪芬,乔旭..非晶态CeO2@TiO2催化剂的结构、性质及其选择催化还原脱硝性能[J].燃料化学学报,2016,44(8):954-960,7.基金项目
The project was supported by National Natural Science Foundation of China (21306089), the National Key Technology Research and Development Program of China (2011BAE18B01) and Innovation Foundation of Jiangsu Province (SJLX15-0347).国家自然科学基金(21306089),国家科技支撑计划(2011BAE18B01)和江苏省创新基金(SJLX15-0347)资助 （21306089）
