A series of Co-Ni-Fe hydrotalcite like compounds have been synthesized by combining a mixed solution of Co(NO3)2·6H2O,Ni(NO3)2·6(H2O) and Fe(NO3)3·9H2O with a second solution containing NaOH and Na2CO3....A series of Co-Ni-Fe hydrotalcite like compounds have been synthesized by combining a mixed solution of Co(NO3)2·6H2O,Ni(NO3)2·6(H2O) and Fe(NO3)3·9H2O with a second solution containing NaOH and Na2CO3.The compounds have been characterized by XRD,IR and TG-DTA.The results showed that the hydrotalcites with M2+/M3+ molar ratios of 2 to 4 have the nice crystal form and high purity.After calcined,hydrotalcites are converted into composite oxides.It is found that the composite oxides has activity and selectivity for catalyzing the dehydrogenation and dehydration of ethanol.展开更多
文摘A series of Co-Ni-Fe hydrotalcite like compounds have been synthesized by combining a mixed solution of Co(NO3)2·6H2O,Ni(NO3)2·6(H2O) and Fe(NO3)3·9H2O with a second solution containing NaOH and Na2CO3.The compounds have been characterized by XRD,IR and TG-DTA.The results showed that the hydrotalcites with M2+/M3+ molar ratios of 2 to 4 have the nice crystal form and high purity.After calcined,hydrotalcites are converted into composite oxides.It is found that the composite oxides has activity and selectivity for catalyzing the dehydrogenation and dehydration of ethanol.
