Catalysis Letters

, Volume 10, Issue 3–4, pp 181–191 | Cite as

On the NiMoO4 oxidative dehydrogenation of propane to propene: some physical correlations with the catalytic activity

  • C. Mazzocchia
  • C. Aboumrad
  • C. Diagne
  • E. Tempesti
  • J. M. Herrmann
  • G. Thomas


The α- and β-phases of NiMoO4 have been investigated with different techniques (X-ray diffraction, electrical conductivity, IR spectroscopy) in order to tentatively rationalise the different catalytic activities observed in the oxidative dehydrogenation of propane to propene. XRD analyses have shown that at 595 ° C, the β-phase is already present but a temperature of ∼ 700 ° C is required to obtain a full conversion into a pure β-phase. Electrical conductivity showed the presence of anionic vacancies. It is proposed that propene is formed by the reaction of propane with surface O2- anions. The β-phase is almost twice more selective in propene formation than the α-phase for comparable conversion at identical temperatures. This could derive from different oxygen environments on the active catalytic site.


Propane dehydrogenation nickel molybdate NiMoO4 propene formation 


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Copyright information

© J.C. Baltzer A.G. Scientific Publishing Company 1991

Authors and Affiliations

  • C. Mazzocchia
    • 1
  • C. Aboumrad
    • 1
  • C. Diagne
    • 1
  • E. Tempesti
    • 2
  • J. M. Herrmann
    • 3
  • G. Thomas
    • 4
  1. 1.Dipartimento di Chimica Industriale e Ingegneria ChimicaPolitecnlco di MilanoMilanoItalia
  2. 2.Dipartimento ai Ingegneria Meccanica dell'Università di BresciaBresciaItalia
  3. 3.Ecole Centrale de LyonURA au CNRS Photocatalyse, Catalyse et EnvironmentEcully CédexFrance
  4. 4.E.N.S.M. de Saint EtienneSt.Etienne CédexFrance

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