Influence of Alumina Precursor Properties on Cu-Fe Alumina Supported Catalysts for Total Toluene Oxidation as a Model Volatile Organic Air Pollutant

The structure–property relationship of catalytic supports for the deposition redox-active transition metals is great importance improving efficiency and reusability catalysts. In this work, role alumina support precursors Cu-Fe/Al2O3 catalysts used total oxidation toluene as a model volatile organic air pollutant elucidated. Surface characterization revealed that surface area, pore volume acid site concentration are important but not determining factors activity studied type reaction. structural order precursor, homogeneous distribution sites reducibility, which were elucidated by XRD, NMR, TEM temperature programed reduction (TPR). Cu–Fe/Al2O3 prepared from bayerite pseudoboehmite highly ordered showed better performance compared to derived amorphous precursor dawsonite. Homogeneous FexOy CuOx with defined Cu/Fe molar ratio on Al2O3 required efficient material. study beneficial effect low iron introduced into during synthesis procedure, resulted in metal oxide support.