| Autor: |
Okamoto, Yasuaki, Adachi, Toshinori, Maezawa, Akinori, Imanaka, Toshinobu |
| Zdroj: |
Bulletin of the Chemical Society of Japan; January 1991, Vol. 64 Issue: 1 p236-242, 7p |
| Abstrakt: |
The effect of ZnO addition on cobalt–alumina interaction modes was studied using TPR and XPS. It was found that the addition of 2 wt% ZnO markedly affects the distribution of the cobalt species in CoO/Al2O3(5 wt% CoO): cobalt–alumina surface interaction species are removed and migration of cobalt into an alumina subsurface phase is promoted by ZnO. A formation of Co–Zn–O mixed oxide is proposed for ZnO–CoO/Al2O2O3at high ZnO content. The dispersion and distribution of ZnO on Al2O3are also strongly modified by the presence of cobalt. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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