DIRECT FORMATION OF 3–30% (W/W) LAFEO3/MCM−41, NANOCOMPOSITE CATALYSTS WERE PERFORMED BY A SOL−GEL PROCESS, FOLLOWED BY CALCINATION AT 550 AND 750 °C. THE NANOCOMPOSITES WERE CHARACTERIZED THROUGH DIFFERENT TECHNIQUES INCLUDING LAXRD, WAXRD, EDX, SIMULTANEOUS TG−DTA, ATR−FTIR, NITROGEN ADSORPTION/DESORPTION, AND TEM. THE NANOCOMPOSITES FEATURED HIGH SURFACE AREAS (UP TO 1000 M2/G) AND ENHANCED THERMAL STABILITY. THE DIRECT FORMATION METHOD LED TO ... إقراء المزيد