Transient behaviour of Cu-overexchanged ZSM-5 catalyst in NO decomposition

被引：0
|
作者：
R. Pirone
E. Garufi
P. Ciambelli
G. Moretti
G. Russo
机构：
来源：
Catalysis Letters | 1997年 / 43卷
关键词：
Zeolite; Catalytic Decomposition; Outlet Concentration; Outlet Reactor; Copper Site;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The adsorption of NO at 80°C on Cu-overexchanged ZSM-5 (Si/Al=80) has been investigated in a flow apparatus. The formation of N2O during a transient phase was observed after He pretreatment of the zeolite at 550°C. A negligible amount of N2O was detected, in contrast, from O2 pretreated zeolite. The formation of N2O has been associated to the reoxidation from Cu+ to Cu2+ of a fraction (about 40%) of copper in the zeolite. The redox chemistry in NO adsorption at low temperature can be related to the activity of Cu-ZSM-5 zeolite in NO decomposition.
引用
收藏
页码：255 / 259
页数：4
相关论文
共 50 条
  • [1] Transient behaviour of Cu-overexchanged ZSM-5 catalyst in NO decomposition
    Pirone, R
    Garufi, E
    Ciambelli, P
    Moretti, G
    Russo, G
    CATALYSIS LETTERS, 1997, 43 (3-4) : 255 - 259
  • [2] Transient behaviour of Cu-overexchanged ZSM-5 catalyst in NO decomposition
    Pirone, R.
    Garufi, E.
    Ciambelli, P.
    Moretti, G.
    Catalysis Letters, 43 (3-4):
  • [3] Kinetics of no decomposition over Cu/ZSM-5 catalyst
    V. Tomašić
    Z. Gomzi
    S. Zrnčević
    Reaction Kinetics and Catalysis Letters, 1998, 64 : 89 - 95
  • [4] Kinetics of NO decomposition over Cu/ZSM-5 catalyst
    Tomasic, V
    Gomzi, Z
    Zrncevic, S
    REACTION KINETICS AND CATALYSIS LETTERS, 1998, 64 (01): : 89 - 95
  • [5] PHOTOCATALYTIC DECOMPOSITION OF DINITROGEN OXIDE ON CU-CONTAINING ZSM-5 CATALYST
    EBITANI, K
    MOROKUMA, M
    KIM, JH
    MORIKAWA, A
    JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1994, 90 (02): : 377 - 381
  • [6] THERMAL-DECOMPOSITION OF THE ZEOLITE CATALYST ZSM-5
    TALLON, JL
    BUCKLEY, RG
    JOURNAL OF PHYSICAL CHEMISTRY, 1987, 91 (06): : 1469 - 1475
  • [7] IDENTIFICATION OF CU SITES IN ZSM-5 ACTIVE IN NO DECOMPOSITION
    WICHTERLOVA, B
    DEDECEK, J
    VONDROVA, A
    JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (04): : 1065 - 1067
  • [8] PHOTOCATALYTIC DECOMPOSITION OF NITROUS-OXIDE ON CU ION-CONTAINING ZSM-5 CATALYST
    EBITANI, K
    MOROKUMA, M
    KIM, JH
    MORIKAWA, A
    JOURNAL OF CATALYSIS, 1993, 141 (02) : 725 - 728
  • [9] Formation and depletion or NO2 during the catalytic decomposition of NO over Cu/ZSM-5 catalyst
    Tomasic, V
    Gomzi, Z
    Zrncevic, S
    CHEMICAL AND BIOCHEMICAL ENGINEERING QUARTERLY, 1998, 12 (03) : 135 - 139
  • [10] CATALYTIC DECOMPOSITION OF POLYOLEFINS .3. DECOMPOSITION OVER THE ZSM-5 CATALYST
    VASILE, C
    ONU, P
    BARBOIU, V
    SABLIOVSCHI, M
    MOROI, G
    GANJU, D
    FLOREA, M
    ACTA POLYMERICA, 1988, 39 (06) : 306 - 310
12345