Characterization of MoO3-V2O5/Al2O3 catalysts for selective catalytic reduction of NO by NH3

被引：51

作者：

Koh, Hyoung-Lim ^{[2
]}

Park, Hea-Kyung ^{[1
]}

机构：

[1] Hanseo Univ, Dept Chem Engn, Seosan 356706, Chungnam, South Korea

[2] Hyosung Corp, R&D Ctr Chem Technol, Anyang 431080, Kyunggi Do, South Korea

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2013年 / 19卷 / 01期

关键词：

V2O5/Al2O3; Selective catalytic reduction (SCR); Nitric oxide; Reducibility; MoO3; addition; VANADIUM-OXIDE CATALYSTS; REDOX BEHAVIOR; REACTIVITY; AMMONIA; ACIDITY; STATE; SCR; V2O5-WO3; SUPPORTS; ALUMINA;

D O I：

10.1016/j.jiec.2012.07.003

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

MoO3-V2O5/Al2O3 catalysts were characterized by B.E.T., XRD, LRS, XPS and TPR and the effect of MoO3 addition to alumina supported vanadia catalysts on the catalytic activity for the selective catalytic reduction of NO by ammonia was investigated. Upon the addition of MoO3, catalytic activity was enhanced and the particle size of V2O5 which is shown by the results of B.E.T., XRD and Raman spectroscopy decreased. This was one reason for increased catalytic activity. The results obtained by XPS and TPR showed that MoO3 addition to alumina supported vanadia catalysts increased the reducibility of vanadia and this was the another reason for synergy effect between MoO3 and V2O5 in MoO3-V2O5/Al2O3 catalysts. (C) 2012 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：73 / 79

页数：7

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