Vibrational Analysis of an Industrial Fe-Based Fischer–Tropsch Catalyst Employing Inelastic Neutron Scattering


  • Sasol Technology UK Ltd are thanked for the supply of the catalyst sample and the provision of studentships. We are grateful to the STFC Rutherford Appleton Laboratory for access to neutron scattering facilities. The EPSRC is thanked for the provision of INS sample cells through grant number EP/E028861/1. Mr A. Monaghan and Mrs K. Wilson (University of Glasgow) are respectively thanked for assistance with the XRD and microanalysis measurements.


original image

Inelastic neutron scattering (INS) has been used to obtain the vibrational spectrum of a technical-grade iron-based Fischer–Tropsch catalyst that has been taken from an industrial large-scale unit operation. Whereas previous reports on iron Fischer–Tropsch catalysts highlight the presence of retained carbonaceous species, the INS spectra reveal the additional presence of partially hydrogenated aromatic molecules (see picture).