Characterization of defects formed in amorphous SiO2 by high energy ions using electron spin resonance and optical spectroscopy

Studies on the polymerization of ethylen

Studies on the polymerization of ethylene using a high-yield MgCl2-supported titanium catalyst, 4. Structural investigation by X-ray diffraction and electron spin resonance measurements on the state of titanium ions in the standard system and its modifications

✍ Hans Fuhrmann; Werner Herrmann 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 702 KB

## Abstract The MgCl~2~‐supported titanium catalyst MTK~ST~ was characterized by X‐ray diffraction measurement and electron spin resonance (ESR) spectroscopy. To obtain a better understanding of the nature of active sites the process of catalyst formation was interrupted at several stages to obtain