oxidenanocompositePorositya b s t r a c tA series of 10, 20 and 30% (w/w) La2O3-Fe2O3/silica composites were synthesized by mixing of La-Fecitrate complex gels with spherical silica sols. This was followed by calcination of the formed xerogelat 550◦C and 750◦C for 3 h. The materials were characterized by XRD, simultaneous thermal analyses(TGA-DTA), FTIR, N2gas adsorption/desorption isotherms at −196◦C, and ...
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