| Autor: |
Tsuyuki, Minoru, Omori, Shin Ichi, Senna, Mamoru |
| Zdroj: |
Journal of Materials Science; August 1992, Vol. 27 Issue: 15 p4045-4050, 6p |
| Abstrakt: |
A suspension polymerization method was modified for producing composite microspheres of silica gel or silica glass coated by a layer of fine RuO2 particles. Pre-hydrolysed silicon tetraethoxide (TEOS) was dispersed into a mixed medium comprising cyclohexane and cyclohexanol or cyclohexane and cyclohexanone with pre-dispersed RuO2 powders. The rate of gelation of TEOS sensitively increased with increasing content of alcohol or ketone in the dispersing medium. Faster gelation brought about smaller composite particles. Better dispersion of RuO2 in cyclohexanone containing medium resulted in the better coating of RuO2. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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