Dr. Gary Jacobs and Dr. Ramana Pendyala from the University of Kentucky Center for Applied Energy Research's Clean Fuels and Chemicals research group was recently interviewed by Victoria Martinez, the Communications Coordinator at the Canadian Light Source, Inc., in Saskatoon, Saskatchewan, Canada while the two scientists were working at the Soft X-ray Microcharacterization Beamline laboratory.
The researchers, in collaboration with Dr. Yongfeng Hu of CLSI, analyzed Fischer-Tropsch synthesis catalysts that had been exposed to common contaminants found in biomass-derived synthesis gas. The soft X-rays allow for an analysis of low energy edges such as sulfur and chlorine, which are common catalyst poisons, as well as potassium, a promoter in iron FT catalysts. Moreover, the beamline is also capable of handling harder X-rays such that iron and cobalt, which are primary FT catalyst metals, can also be characterized.

The XANES technique is used to evaluate electronic properties, while the EXAFS method examines local atomic structure. The project, led by Dr. Burtron H. Davis, UK CAER, and involving his entire team, is focused on utilizing second generation biomass - which does not compete with food production - for the sustainable production of transportation fuels such as diesel and aviation fuels.

More Photos from Canadian Light Source Flicker Account.