X-ray physico-chemical imaging during activation of cobalt-based Fischer-Tropsch synthesis catalysts.

ABSTRACT: The imaging of catalysts and other functional materials under reaction conditions has advanced significantly in recent years. The combination of the computed tomography (CT) approach with methods such as X-ray diffraction (XRD), X-ray fluorescence (XRF) and X-ray absorption near-edge spectroscopy (XANES) now enables local chemical and physical state information to be extracted from within the interiors of intact materials which are, by accident or design, inhomogeneous. In this work, we follow the phase evolution during the initial reduction step(s) to form Co metal, for Co-containing particles employed as Fischer-Tropsch synthesis (FTS) catalysts; firstly, working at small length scales (approx. micrometre spatial resolution), a combination of sample size and density allows for transmissi

SUBMITTER: Beale AM 

PROVIDER: S-EPMC5719219 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature