Chemistry Department Seminar

"Synchrotron-based X-ray Absorption Spectroscopy for In Situ and Operando Studies of Nanoporous Catalysts"

Presented by Kirill A. Lomachenko, European Synchrotron Radiation Facility (ESRF), Grenoble, France, France

Monday, November 5, 2018, 11:00 am — Room 300, Chemistry Bldg. 555

X-ray absorption spectroscopy (XAS) has proven to be a very powerful tool for rationalization of catalytic processes because of the possibility to determine oxidation state and coordination geometry of catalytically active species in operando regime. The seminar will be focused on the advanced facilities for chemical XAS studies available at BM23 and ID24 beamlines of the ESRF synchrotron, which allow to exploit simultaneously a wide range of complementary techniques, make use of flexible sample environment, and obtain high-quality data in the timescale from minutes down to milliseconds. As a case study, recent work on the investigation of the local environment and electronic structure of the active centers of Cu-zeolites in deNOx and methane-to-methanol processes will be discussed.

Hosted by: Anatoly Frenkel

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