Effect of the calcium on the textural, structural and catalytic properties of La1–xCaxCo1–yFeyO3 perovskites
2007
In La1-x Ca (x) Co1-y Fe (y) O-3 perovskites, the calcium substitution modifies the crystalline structure toward a pseudocubic one and produces an electronic unbalance, compensated by the formation of oxygen vacancies and Fe4+ ions. It also increases slightly the ethanol conversion in total combustion, compensating the detriment of catalytic activity caused by the iron substitution and it increases notably the selectivity to total oxidation.
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