Volume 42 Issue 06
Jun.  2014
Turn off MathJax
Article Contents
ZHAO Zhao-hui, ZOU Han-bo, LIN Wei-ming. Reaction kinetics of ammonia decomposition over La-CoMoNx/CNTs catalyst[J]. Journal of Fuel Chemistry and Technology, 2014, 42(06): 758-762.
Citation: ZHAO Zhao-hui, ZOU Han-bo, LIN Wei-ming. Reaction kinetics of ammonia decomposition over La-CoMoNx/CNTs catalyst[J]. Journal of Fuel Chemistry and Technology, 2014, 42(06): 758-762.

Reaction kinetics of ammonia decomposition over La-CoMoNx/CNTs catalyst

  • Received Date: 2013-12-03
  • Rev Recd Date: 2014-03-27
  • Publish Date: 2014-06-30
  • The reaction kinetics of ammoniade composition over La-CoMoNx/CNTs catalyst were studied. The effect of N2 concentration, H2 concentration, NH3 concentration and reaction temperature on the rate of ammonia decomposition were investigated. According to the experimental data, the correlative kinetic parameters were determined based on an exponential equation. The intrinsic kinetic equation was obtained. The activation energy of the reaction was 93.948 kJ/mol. The reaction mechanism was also discussed. The reaction rate of ammonia decomposition over La-CoMoNx/CNTs was controlled by the combination desorption of nitrogen on the surface of the catalyst.
  • loading
  • YIN S F, XU B Q, NG C F, AU C T. Nano Ru/CNTs: A highly active and stable catalyst for the generation of CO-free hydrogen in ammonia decomposition[J]. Appl Catal B: Environ, 2004, 48: 237-241.
    LORENZUT B, MONTINI T, BEVILACQUA M, FORNASIERO P. FeMo-based catalysts for H2 production by NH3 decomposition[J]. Appl Catal B: Environ, 2012, 125: 409-417.
    PLANA C, ARMENISE S, MONZON A, GARCÍA-BORDEJÉA E. Ni on alumina-coated cordierite monoliths for in situ generation for CO-free H2 from ammonia[J]. J Catal, 2010, 275(2): 228-235.
    YUZAWA H, MORI T, ITOH H, YOSHIDA H. Reaction mechanism of ammonia decomposition to nitrogen and hygrogen over metal loaded titanium oxide photocatalyst[J]. J Phys Chem C, 2012, 116(6): 4126-4123.
    TSAI W, VAJO J J, WEINBERG W H. Inhibition by hydrogen of the heterogeneous decomposition of ammonia on platinum[J]. J Phys Chem, 1985, 89(23): 4926-4932.
    CHOUDHARY T V, SIVADINARAYANA C, GOODMAN D W. Catalytic ammonia decomposition: COx-free hydrogen production for fuel cell applications[J]. Catal Lett, 2001, 72(3/4): 197-201.
    TSAI W, WEINBERG W H. Steady-state decomposition of ammonia on the Ru(001) surface[J]. J Phys Chem, 1987, 91: 5302-5307.
    HASHIMOTO K, TOUKAI N. Decomposition of ammonia over a catalyst consisting of ruthenium metal and cerium oxides supported on Y-form zeolite[J]. J Mol Catal A: Chem, 2000, 161(1): 171-178.
    GANLEY J C, THOMAS F S, SEEBAUER E G, MASEL R I. A priori catalytic activity correlations: The difficult case of hydrogen production from ammonia[J]. Catal Lett, 2004, 96(3/4): 117-122.
    OYAMA S T. Kinetics of ammonia decomposition on vanadium nitride[J]. J Catal, 1992, 133(2): 358-369.
    WISE R S, MARKEL E J. Catalytic NH3 decomposition by topotactic molybdenum oxides and nitrides: Effect on temperature programmed γ-Mo2N synthesis[J]. J Catal, 1994, 145(2): 335-343.
    ZHAO Z H, ZOU H B, LIN W M. Effect of rare earth and other cationic promoters on the properties of CoMoNx/CNTs catalysts for ammonia decomposition[J]. J Rare Earths, 2013, 31(3): 247-250.
    卢春山. 负载型过渡金属氮化物制备和催化性能研究[D]. 浙江: 浙江工业大学, 2003. (LU Chun-shan. Preapration and catalytic properties of supported bimetallic nitrides[D]. Zhejiang: Zhejiang University of Technology, 2003.)
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (986) PDF downloads(646) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return