Iron-based catalysts are employed in CO2-FTS due to their ability convert CO2 into CO a first step and selectivity towards higher hydrocarbons second hydrogenation step. According the literature, iron carbides represent active phase for hydrocarbon formation claimed emerge presence of CO. We propose nanostructured FeOx films as model systems assess information about complex transformations duri...

Introduction: Iron oxides/oxyhydroxides (FeOx) are present nearly everywhere on the surface of Mars [e.g. 1,2]. They are characterized in the visible/near-infrared (VNIR) region by a strong electronic absorption centered near 0.85-0.95 μm and additional absorptions that shape the character of the visible reflectance spectrum and their color [3,4]. The objective of this study is to measure the s...