期刊
CHEMICAL ENGINEERING JOURNAL
卷 296, 期 -, 页码 45-55出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2015.08.115
关键词
NO; NH3; Ti-V-O catalysts; SCR; Flame synthesis; Nanoparticle
资金
- National Natural Science Foundation of China [51176118, 51306115]
- China Postdoctoral Science Foundation [2012M520894]
- China Postdoctoral Science Special Foundation [2013T60445]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
Ti0.9V0.1O2-delta catalysts were prepared by flame synthesis to improve low temperature activity for selective catalytic reduction (SCR) of NO with ammonia. The influence of different synthesis conditions (precursor concentration and axial distance of stagnation plate) was investigated. The activities of these catalysts were performed by temperature programmed reaction (TPR). These catalysts were characterized by surface area measurement, XRD, TEM, Raman spectroscopy, XPS, H-2-TPR and NH3-TPD. The results showed that the Ti0.9V0.1O2-delta catalysts synthesized With 304 ppm precursor concentration, exhibited small particle size and high SCR activity. The particle size of Ti0.9V0.1O2-delta generally increased as the axial distance of stagnation plate. The samples prepared with stagnation plate placed 20 mm beneath the nozzle were most active, which might be caused together by strong interaction between vanadia species and titania surface, high redox properties and abound Bronsted acid sites. Sample Ti0.9V0.1O2-delta (304-20) showed excellent H2O-resistant performance. (C) 2016 Published by Elsevier B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据