Image Acquisition
Two pellet-based catalysts were extruded to create trilobed pellets, which were calcined at different temperatures to produce two samples for scanning. Synchrotron X-ray microtomography (XMT), dual beam-focused ion tomography (DBFIB) and electron tomography (ET) were used to obtain 3D images at different length scales.
Following 3D tomographic reconstruction, the data was processed to reduce noise and segment bulk material and voids, resulting in a binarised dataset. The pellet samples were also experimentally measured to determine permeability.