Enhanced activity of Ba-doped Ir/SiO2 catalyst for NO reduction with CO in the presence of O2 and SO2

被引：43
作者：
Haneda, Masaaki
Kudo, Haruko
Nagao, Yukinori
Fujitani, Tadahiro
Hamada, Hideaki
机构：
[1] AIST, Res Inst Innovat Sustainable Chem, Tsukuba, Ibaraki 3058565, Japan
[2] Tokyo Univ Sci, Fac Sci & Technol, Noda, Chiba 2788510, Japan
来源：
CATALYSIS COMMUNICATIONS | 2006年 / 7卷 / 07期
关键词：
selective reduction of NO; CO; Ir/SiO2; alkaline earth metal;
D O I：
10.1016/j.catcom.2005.12.020
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：
The effect of metal additives on the catalytic performance of Ir/SiO2 catalyst for the selective reduction of NO with CO in the presence of O-2 and SO2 was investigated. Among the 19 additives tested here, the addition of barium was the most effective to enhance the activity of Ir/SiO2 at low temperature and low SO, concentration. Catalyst characterization suggested that barium prevents catalyst deactivation as an oxidation-retardant for the active Ir metal supported on SiO2 (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：423 / 426
页数：4
相关论文
共 50 条
  • [41] Effect of amorphous SiO2 matrix on structural and magnetic properties of Cu0.6Co0.4Fe2O4/SiO2 nanocomposites
    Dippong, Thomas
    Levei, Erika Andrea
    Cadar, Oana
    Deac, Iosif Grigore
    Lazar, Mihaela
    Borodi, Gheorghe
    Petean, Ioan
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2020, 849
  • [42] Enhanced activity of CuO/K2CO3/MgAl2O4 catalyst for lean NOx storage and reduction at high temperatures
    Liu, Yaoyao
    Guo, Lihong
    Zhao, Dongyue
    Li, Xingang
    Gao, Zhongnan
    Ding, Tong
    Tian, Ye
    Jiang, Zheng
    [J]. RSC ADVANCES, 2017, 7 (44): : 27405 - 27414
  • [43] TiO2 Coating on SiO2 Nanosphere Supported Pd Catalyst for the H2-SCR of NO x in the Presence of Oxygen
    Xu, Shiyu
    Li, Ruoyuan
    Chen, Jianjun
    Liu, Zhiming
    [J]. ACS APPLIED NANO MATERIALS, 2023, 6 (11) : 9322 - 9330
  • [44] Insights into the role of SO2 and H2O on the surface characteristics and de-N2O efficiency of Pd/Al2O3 catalysts during N2O decomposition in the presence of CH4 and O2 excess
    Konsolakis, M.
    Yentekakis, I. V.
    Pekridis, G.
    Kaklidis, N.
    Psarras, A. C.
    Marnellos, G. E.
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2013, 138 : 191 - 198
  • [45] Enhanced Sulfur Resistance of Pt-Pd/CeO2-ZrO2-Al2O3 Commercial Diesel Oxidation Catalyst by SiO2 Surface Cladding
    Yang Zheng-Zheng
    Yang Yi
    Zhao Ming
    Gong Mao-Chu
    Chen Yao-Qiang
    [J]. ACTA PHYSICO-CHIMICA SINICA, 2014, 30 (06) : 1187 - 1193
  • [46] The Influence Of NO/O2 On The NOx Storage Properties Over A Pt-Ba-Ce/γ-Al2O3 Catalyst
    Feng, Xuedong
    Yi, Jing
    Luo, Peng
    [J]. OPEN CHEMISTRY, 2019, 17 (01): : 1459 - 1465
  • [47] Reaction Pathways of Gamma-Valerolactone Hydroconversion over Co/SiO2 Catalyst
    Novodarszki, Gyula
    Lonyi, Ferenc
    Mihalyi, Magdolna R. R.
    Vikar, Anna
    Barthos, Robert
    Szabo, Blanka
    Valyon, Jozsef
    Solt, Hanna E. E.
    [J]. CATALYSTS, 2023, 13 (07)
  • [48] Nitrobenzene Hydrogenation on Au/TiO2 and Au/SiO2 Catalyst: Synthesis, Characterization and Catalytic Activity
    Torres, Cecilia
    Campos, Cristian
    Garcia Fierro, Jose Luis
    Oportus, Marcelo
    Reyes, Patricio
    [J]. CATALYSIS LETTERS, 2013, 143 (08) : 763 - 771
  • [49] The selective hydrogenation of acetylene over a Ni/SiO2 catalyst in the presence and absence of carbon monoxide
    Trimm, David L.
    Liu, Irene O. Y.
    Cant, Noel W.
    [J]. APPLIED CATALYSIS A-GENERAL, 2010, 374 (1-2) : 58 - 64
  • [50] Enhanced Adsorption of SO2 Molecule on Al- and Si-Doped Pyridinic Nitrogen Doped Graphene
    Song, Yao-Dong
    Wang, Liang
    Wang, Qian-Ting
    [J]. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2018, 92 (12) : 2556 - 2564
12345