Activity Enhancement of Pt/Ba/Al2O3 Mixed with Mn/Ba/Al2O3 for NOx Storage-reduction by Hydrogen

被引：0
|
作者：
Jian Hua XIAO
机构：
来源：
Chinese Chemical Letters | 2006年 / 10期
关键词：
Nitrogen oxides; storage-reduction; lean burn; Pt/Ba/Al2O3; Mn/Ba/Al2O3;
D O I：
暂无
中图分类号：
O643.36 [催化剂];
学科分类号：
081705 ;
摘要：
Mn/Ba/Al2O3 catalyst for NO oxidation-storage and Pt/Ba/Al2O3 catalyst mixed with Mn/Ba/Al2O3 for NOx storage-reduction by hydrogen were investigated. The results showed that Mn/Ba/Al2O3 had large nitrogen oxides storage capacity (397.9 μmolg-1) under lean burn condition. When Pt/Ba/Al2O3 catalyst was mixed with Mn/Ba/Al2O3 in equal weight proportion, the NOx conversion increased between 250 ℃ and 500 ℃ under the dynamic lean-rich burn conditions, and the maximum NOx conversion increased from 95.4% to 98.2%. Mn/Ba/Al2O3 has promoted NOx storing in the lean stage and improved NOx reduction efficiency in the rich stage, these might result in higher NOx conversion over the low Pt loading content catalyst.
引用
收藏
页码：1357 / 1360
页数：4
相关论文
共 50 条
  • [21] On the dynamic behavior of "NOx-storage/reduction" Pt-Ba/Al2O3 catalyst
    Nova, I
    Castoldi, L
    Lietti, L
    Tronconi, E
    Forzatti, P
    [J]. CATALYSIS TODAY, 2002, 75 (1-4) : 431 - 437
  • [22] Reduction by CO of NOx species stored onto Pt-K/Al2O3 and Pt-Ba/Al2O3 lean NOx traps
    Morandi, Sara
    Ghiotti, Giovanna
    Castoldi, Lidia
    Lietti, Luca
    Nova, Isabella
    Forzatti, Pio
    [J]. CATALYSIS TODAY, 2011, 176 (01) : 399 - 403
  • [23] The NOx storage-reduction on Pt-K/Al2O3 Lean NOx Trap catalyst
    Castoldi, L.
    Lietti, L.
    Forzatti, P.
    Morandi, S.
    Ghiotti, G.
    Vindigni, F.
    [J]. JOURNAL OF CATALYSIS, 2010, 276 (02) : 335 - 350
  • [24] Simultaneous Removal of NOx and Soot Over Pt–Ba/Al2O3 and Pt–K/Al2O3 DPNR Catalysts
    R. Matarrese
    L. Castoldi
    L. Lietti
    P. Forzatti
    [J]. Topics in Catalysis, 2009, 52 : 2041 - 2046
  • [25] Controlling the selectivity to N2O over Pt/Ba/Al2O3 NOX storage/reduction catalysts
    Elizundia, Unai
    Duraiswami, Divakar
    Pereda-Ayo, Benat
    Lopez-Fonseca, Ruben
    Ramon Gonzalez-Velasco, Juan
    [J]. CATALYSIS TODAY, 2011, 176 (01) : 324 - 327
  • [26] Comparison between the NOx release-reduction reaction for Pt/Ba/Al2O3 and Pt/K/Al2O3 on a millisecond time scale
    Sakamoto, Y.
    Matsunaga, S.
    Okumura, K.
    Kayama, T.
    Yamazaki, K.
    Takahashi, N.
    Tanaka, T.
    Kizaki, Y.
    Motohiro, T.
    Shinjoh, H.
    [J]. CHEMICAL ENGINEERING SCIENCE, 2008, 63 (20) : 5028 - 5034
  • [27] Influence of reductant on the thermal stability of stored NOx in Pt/Ba/Al2O3 NOx storage and reduction traps
    Liu, ZQ
    Anderson, JA
    [J]. JOURNAL OF CATALYSIS, 2004, 224 (01) : 18 - 27
  • [28] Kinetic study of NO oxidation and NOx storage on Pt/Al2O3 and Pt/BaO/Al2O3
    Olsson, L
    Persson, H
    Fridell, E
    Skoglundh, M
    Andersson, B
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (29): : 6895 - 6906
  • [29] Two-nozzle flame synthesis of Pt/Ba/Al2O3 for NOx storage
    Buechel, R.
    Strobel, R.
    Pratsinis, S. E.
    Baiker, A.
    [J]. CLEAN TECHNOLOGY 2008: BIO ENERGY, RENEWABLES, GREEN BUILDING, SMART GRID, STORAGE, AND WATER, 2008, : 651 - 653
  • [30] Chemical poisoning by zinc and phosphorous of Pt/Ba/Al2O3 NOx storage catalysts
    Jonsson, Rasmus
    Ilmasani, Rojin Feizie
    Pingel, Torben Nilsson
    Skoglundh, Magnus
    Olsson, Eva
    Berggrund, Malin
    Olsson, Louise
    [J]. APPLIED CATALYSIS A-GENERAL, 2019, 571 : 158 - 169
12345