A Laser Raman Study of Multiphase Co-Bi-Mo Oxide Catalysts |
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| Authors: | S R G Carrazán C Martín J V García-Ramos V Rives |
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| Institution: | 1. Departamento de Química Inorgánica , Universidad de Salamanca , Salamanca, Spain;2. Instituto de óptica “Daza de Valdés” , C. S. I. C., Serrano 117, 28026, Madrid, Spain |
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| Abstract: | Cobalt and bismuth molybdates catalysts prepared by three different methods (coprecipitation, mechanical mixing and dispersion in n-pentane), have been studied by Laser Raman spectroscopy before and after testing the catalysts in the selective oxidation of isobutene to methacrolein. Raman bands ascribed to the component phases are observed in the spectra before test, while a phase transformation is detected after test. |
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| Keywords: | Laser Raman spectroscopy multiphase catalysts Co-Bi-Mo oxides |
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