Authors: ŞEYMA ÖZKARA, AYŞE NİLGÜN AKIN, ZÜLAL MISIRLI, AHMET ERHAN AKSOYLU
Abstract: The effect of metal loading on structural properties and CO oxidation activity of coprecipitated Co/Al_2O_3 catalysts was investigated. The results indicated the participation of cobalt in the Co-Al skeleton for all coprecipitated samples. Environmental-SEM-EDXS studies showed that at loadings higher than ca. 15 wt.-%, cobalt formed layer-by-layer clusters on the surface; 16.8 wt.-% Co/Al_2O_3 displayed the highest activity and stability in CO oxidation.
Keywords: Catalysis, Catalyst activation, Environment, Precipitation, CO oxidation, cobalt-alumina catalysts.
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