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
Nickel sulfate supported on γ-Al2O3 for ethylene dimerization
✍ Scribed by Jong Rack Sohn; Won Cheon Park
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 114 KB
- Volume
- 133
- Category
- Article
- ISSN
- 1381-1169
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📜 SIMILAR VOLUMES
Ethene dimerization over a NiSO,/y-AlxOs catalyst was studied. An induction period was observed when the catalyst was calcined in an oxygen atmosphere, but no induction period was observed when it was calcined under vacuum. The generation of Ni+ was identified by electron spin resonance and infrared
We have tested the possibifity of using polymer-supported catalysts in a heterogeneous way (gas-solid) for the dimerization of ethylene. The catalyst is prepared by complexation of NiCI 2, by a phosphine group supported on a resin followed by reduction with AI(C2Hs)2CI. Good selectivity in butene sy