Oxidative dehydrogenation of ethylbenzene with CO2 for styrene production over porous iron-based catalysts

► Styrene production over porous iron-based catalysts. ► XRD, 57Fe-Mössbauer and Raman spectroscopy, TPR and N2 adsorption-desorption measurements characterizations. ► FeTi showed any tendency to sintering or phase transformation whereas the other solids suffered from hard carbon deposition.