Adsorption of NO and CO on silver-exchanged microporous materials

被引:25
作者
Akolekar, DB [1 ]
Bhargava, SK [1 ]
机构
[1] RMIT Univ, Dept Appl Chem, Melbourne, Vic 3001, Australia
关键词
FTIR; nitric oxide; carbon monoxide; CO-Ag complexes; NO-Ag complexes; Ag-SAPO-34; Ag-ZSM-5; BET; Ag sites;
D O I
10.1016/S1381-1169(00)00055-8
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
Investigations of nitric bride (NO) and carbon monoxide (CO) adsorption were carried out on the silver-exchanged high silica pentasil zeolite and chabazite-type silico-aluminophosphate materials. Novel Ag-SAPO-34 and Ag-ZSM-5 catalysts were prepared and characterised using routine instrumental techniques. Detailed FTIR studies were carried out on the interaction of NO/CO over Ag-SAPO-34 and Ag-ZSM-5. FTIR spectra indicated the formation of various NO/CO complexes on the silver-exchanged materials. Influence of the NO/CO pressure and evacuation on the surface species have been studied. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:199 / 206
页数:8
相关论文
共 27 条
  • [1] Akolekar D, 1997, STUD SURF SCI CATAL, V105, P755
  • [2] Multimetal-substituted aluminophosphate molecular sieves
    Akolekar, DB
    [J]. APPLIED CATALYSIS A-GENERAL, 1998, 171 (02) : 261 - 272
  • [3] FTIR investigations of the adsorption and disproportionation of NO on Cu-exchanged silicoaluminophosphate of type 34
    Akolekar, DB
    Bhargava, SK
    Foger, K
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1998, 94 (01): : 155 - 160
  • [4] AKOLEKAR DB, 1999, P 12 INT ZEOL C BALT, P2751
  • [5] AKOLEKAR DB, 1987, THESIS U POONA POONA
  • [6] REDOX BEHAVIOR OF TRANSITION-METAL IONS IN ZEOLITES .2. KINETIC STUDY OF REDUCTION AND REOXIDATION OF SILVER-Y ZEOLITES
    BEYER, H
    JACOBS, PA
    UYTTERHOEVEN, JB
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1976, 72 : 674 - 685
  • [7] USE OF COMBINATION-MODES AND OVERTONES OF METAL-CARBONYLS FOR THE IR STUDY OF CATION STATES IN ZEOLITES - COPPER(I) CARBONYLS IN REDUCED CUNAY ZEOLITES
    BOROVKOV, VY
    KARGE, HG
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1995, 91 (13): : 2035 - 2039
  • [8] Adsorption of NO on Cu exchanged zeolites, an FTIR study: Effects of Cu levels, NO pressure, and catalyst pretreatment
    Cheung, T
    Bhargava, SK
    Hobday, M
    Foger, K
    [J]. JOURNAL OF CATALYSIS, 1996, 158 (01) : 301 - 310
  • [9] Davydov A.A., 1984, IR SPECTROSCOPY APPL
  • [10] HARUTA M, 1983, PREPARATION CATALYST, V3, P225