Abstract
The quest for renewable and cleaner energy sources to meet the rapid population and economic growth is more urgent than ever before. Being the most abundant carbon source in the atmosphere of Earth, CO2 can be used as an inexpensive C1 building block in the synthesis of aromatic fuels for internal combustion engines. We designed a process capable of synthesizing benzene, toluene, xylenes and mesitylene from CO2 and H2 at modest temperatures (T = 380 to 540 °C) employing Fe/Fe3O4 nanoparticles as catalyst. The synthesis of the catalyst and the mechanism of CO2-hydrogenation will be discussed, as well as further applications of Fe/Fe3O4 nanoparticles in catalysis.
Highlights
The diminishing fossil reserves and the ever-increasing CO2 emissions have been of great concern amongst the scientific community
Synthesis of Fe/Fe3O4 nanoparticles Here we report the selective formation of aromatic hydrocarbons from CO2 hydrogenation reactions catalyzed by an
Characterization of the catalysts (TEM, HRTEM, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS)) The Transmission electron microscopy (TEM) image reveals that the newly synthesized Fe/Fe3O4 nanoparticles are roughly spherical with a core/shell structure (Figure 2)
Summary
The diminishing fossil reserves and the ever-increasing CO2 emissions have been of great concern amongst the scientific community. Iron-based heterogeneous catalysts have been intensively studied for CO2 hydrogenation reactions. Synthesis of Fe/Fe3O4 nanoparticles Here we report the selective formation of aromatic hydrocarbons from CO2 hydrogenation reactions catalyzed by an
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