Continuous recording of the X-ray diffraction pattern during catalysis: Methanol on molybdenum trioxide |
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| Authors: | J Guidot and J E Germain |
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| Institution: | (1) Laboratoire de Catalyse Organique, L. A. no 231, C.N.R.S., E.S.C.I.L., 43 Bd du 11 Novembre 1918, BP 2002, 69603 Villeurbanne Cedex, France |
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| Abstract: | 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).
                       - ,   -    .    MoO3 - 200 °C (30 );  , MoO3 HxMoO3(x=0,6) 2 .
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