Simplified direct pyrolysis method for preparation of nanocrystalline iron based catalysts for H2 purification via high temperature water gas shift reaction

- Fe3O4 based catalysts were evaluated in high temperature water gas shift reaction.
- Catalysts were prepared by a simple and facile pyrolysis method.
- Fe/Cr and Fe/Cu ratios affected the structural properties of the prepared catalysts.
- Fe-Cr-Cu catalyst showed high stability during 10 h in HTS reaction.