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
Effect of SiO2, NaCl, Al2O3, and FeCl3 on Phase Change Behavior of Supported and Unsupported TiO2
β Scribed by Pekka Eskelinen
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 238 KB
- Volume
- 106
- Category
- Article
- ISSN
- 0022-4596
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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.
## Abstract The authors present results of an investigation into the dispersion of MoO~3~ on TiO~2~βSiO~2~ composite and its reactivity in transesterification of dimethyl oxalate (DMO) with phenol to produce methyl phenyl oxalate (MPO) and diphenyl oxalate (DPO). They examined the effects of suppor
## Abstract Copolymerizations of ethylene with propene, of ethylene with 1βhexene and of propene with 1βhexene were carried out at 40Β°C under atmospheric pressure with SiO~2~β, Al~2~O~3~β and MgCl~2~βsupported metallocene catalysts using common alkylaluminiums as cocatalyst. From a detailed analysi