Ceria modified MnOx/TiO2 as a superior catalyst for NO reduction with NH3 at low-temperature

被引：711

作者：

Wu, Zhongbiao ^{[1
]}

Jin, Ruiben ^{[1
]}

Liu, Yue ^{[1
]}

Wang, Haiqiang ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Environm Engn, Hangzhou 310027, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2008年 / 9卷 / 13期

基金：

中国国家自然科学基金;

关键词：

selective catalytic reduction; Ce modified MnOx/TiO2; low-temperature; sol-gel;

D O I：

10.1016/j.catcom.2008.05.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of cerium modified MnOx/TiO2 catalysts were prepared by sol-gel method and used for low-temperature selective catalytic reduction (SCR) of NOx with ammonia. The experimental results showed that NO conversion could be improved by doping Ce from 39% to 84% at 80 degrees C with a gas hourly space velocity (GHSV) of 40,000 h(-1). This activity improvement may be contributed to the increase of chemisorbed oxygen and acidity after Ce doping. TPR results also verified that the redox property of Ce modified MnOx/TiO2 was enhanced at low-temperature. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：2217 / 2220

页数：4

共 22 条

[1] Mn-Ce/ZSM5 as a new superior catalyst for NO reduction with NH3
Carja, Gabriela
Kameshima, Yoshikazu
Okada, Kiyoshi
Madhusoodana, Changalla D.
[J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2007, 73 (1-2) : 60 - 64
[2] Preferential oxidation of CO in H2 stream over Au/MnO2-CeO2 catalysts
Chang, Li-Hsin
Sasirekha, Natarajan
Chen, Yu-Wen
Wang, Wei-Jye
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2006, 45 (14) : 4927 - 4935
[3] Surface characterization studies of TiO2 supported manganese oxide catalysts for low temperature SCR of NO with NH3
Ettireddy, Padmanabha Reddy
Ettireddy, Neeraja
Mamedov, Sergey
Boolchand, Punit
Smirniotis, Panagiotis G.
[J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2007, 76 (1-2) : 123 - 134
[4] Inhibition of the anatase-rutile phase transformation with addition of CeO2 to CuO-TiO2 system:: Raman spectroscopy, X-ray diffraction, and textural studies
Francisco, MSP
Mastelaro, VR
[J]. CHEMISTRY OF MATERIALS, 2002, 14 (06) : 2514 - 2518
[5] Effect of the temperature of calcination on the catalytic performance of manganese- and samarium-manganese-based oxides in the complete oxidation of acetone
Gil, A
Gandía, LM
Korili, SA
[J]. APPLIED CATALYSIS A-GENERAL, 2004, 274 (1-2) : 229 - 235
[6] Formation and reaction of ammonium sulfate salts on V2O5/AC catalyst during selective catalytic reduction of nitric oxide by ammonia at low temperatures
Huang, ZG
Zhu, ZP
Liu, ZY
Liu, QY
[J]. JOURNAL OF CATALYSIS, 2003, 214 (02) : 213 - 219
[7] Catalytic hydrogen storage in cerium nickel and zirconium (or aluminium) mixed oxides
Jalowiecki-Duhamel, L.
Carpentier, J.
Ponchel, A.
[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2007, 32 (13) : 2439 - 2444
[8] The surface properties and photocatalytic activities of ZnO ultrafine particles
Jing, LQ
Xu, ZL
Sun, XJ
Shang, J
Cai, WM
[J]. APPLIED SURFACE SCIENCE, 2001, 180 (3-4) : 308 - 314
[9] Manganese oxide catalysts for NOx reduction with NH3 at low temperatures
Kang, Min
Park, Eun Duck
Kim, Ji Man
Yie, Jae Eui
[J]. APPLIED CATALYSIS A-GENERAL, 2007, 327 (02) : 261 - 269
[10] Kijlstra WS, 1999, CATAL TODAY, V50, P133

← 1 2 3 →