Laser Raman spectroscopy (LRS), X-ray di4raction (XRD), X-ray photoelectron spectroscopy (XPS), ultraviolet and di4use re6ectance spectroscopy (UV-DRS), and temperature-programmed reduction (TPR) are used to characterize a series of TiO 2 / -Al 2 O 3 , NiO/ -Al 2 O 3 , and NiO/TiO 2 / -Al 2 O 3 samp
The Interaction of Benzene and Toluene with Rh Dispersed on SiO2, Al2O3, and TiO2 Carriers
β Scribed by T. Ioannides; X.E. Verykios
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 807 KB
- Volume
- 143
- Category
- Article
- ISSN
- 0021-9517
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## Abstract The interactions between coumarins and the surface of fumed SiO~2~, CeO~2~/SiO~2~, TiO~2~/SiO~2~ and Al~2~O~3~/SiO~2~ were assessed by means of temperatureβprogramed desorption mass spectrometry. The different stages of the thermolysis of coumarin were identified and an analysis of the
E-28049 Madrid (Spain) [\*\*I This work has been carried out under the European contract No. CIl\*-CT94-003Y and Spanish CICYT project TIC96-0668. One of us (M.A.) gratefully acknowlcdges a F.P.U. fellowship from the Spanish Ministerio de Educacion y Ciencia.