Oxidation of iron in titania-supported iron–ruthenium under reducing conditions: in situ evidence from 57Fe Mössbauer spectroscopy
Abstract
In situ studies of ruthenium-rich iron-ruthenium clusters supported on titania of differing surface areas by 57Fe Mössbauer spectroscopy show that the pre-reduced bimetallic phase undergoes partial oxidation when treated in atmospheres of hydrogen or hydrogen and carbon monoxide.