Reaction Kinetics and Catalysis Letters

, Volume 15, Issue 4, pp 389–393 | Cite as

Continuous recording of the X-ray diffraction pattern during catalysis: Methanol on molybdenum trioxide

  • J. Guidot
  • J. E. Germain


Using a modified Guinier-Lenne camera, the X-ray diffraction pattern of a solid catalyst at work was continuously recorded on a photographic film. During methanol catalysis on a high area orthorhombic MoO3 sample, no phase change is observed in the presence of oxygen at 200 °C (30 h); under the same conditons, but without oxygen, MoO3 is converted within 2 h to the bronze HxMoO3 (x=0.6).


Oxygen Methanol Physical Chemistry Catalysis Diffraction Pattern 
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Используя модифицированную камеру Гуйнер-Ленна, рентгено-диффрактограмма твердого катализатора в ходе работы была непрерывно регистрирована на фотопленке. При катализе окисления метанола на больщих поверхностях образцов орторомбической MoO3 не наблюдалось какого-либо изменения фазы в присутствии кислорода и при 200 °C (30 часов); при тех же условиях, но в отсуствии кислорода MoO3 превращается в бронзу HxMoO3(x=0,6) в течение 2 часов.


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Copyright information

© Akadémiai Kiadó 1980

Authors and Affiliations

  • J. Guidot
    • 1
  • J. E. Germain
    • 1
  1. 1.Laboratoire de Catalyse Organique, L. A. no 231, C.N.R.S.E.S.C.I.L.Villeurbanne CedexFrance

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