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Síntese e caracterização de perovskitas LaNi(1-x)Co xO3 como precursores de catalisadores para a conversão do metano a gás de síntese pela reforma com CO2

By Sania Maria de Lima and José Mansur Assaf


LaNiO3 perovskite was modified by partial substitution of nickel by cobalt in order to increase the stability and resistance to carbon deposition during the methane CO2 reforming. The results showed that a suitable combination of precipitation and calcination steps resulted in oxides with the desired structure and with important properties for application in heterogeneous catalysis. The partial substitution of Ni by Co resulted in lower rates of conversion of both the reactants, but the catalyst stability was highly increased. The LaNi0.3Co0.7O3 catalyst, calcined at 800 ºC, was the most active under the reaction conditions

Topics: CO2 reforming of methane, LaNi(1-x)Co xO3 perovskite-type oxides, syngas production
Publisher: Sociedade Brasileira de Química
Year: 2007
DOI identifier: 10.1590/s0100-40422007000200011
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