Tianpin Wu X-ray Science Division, Argonne National Laboratory, IL 60439 9-BM, hosted by the Advanced Photon Source, the largest synchrotron facility in North America, is a beamline dedicated to the X-ray Absorption Spectroscopy. Energy wise, this beamline is capable of covering a very wide energy range from 2145.5 eV (P-K edge) to 24350 eV (Pd-K edge). Along with routine XAS measurements, 9-BM is well-known for its capability to perform XANES measurements at the P-K and S-K edges, and has been popular for users in the research areas of environmental, geological, and earth sciences. In recent years we have been hosting more users from fields of catalysis and energy storage, focusing on catalysis for efficient conversion of energy resources into usable forms, and storage of such energy in high-performance and safe batteries or other energy capacitors. The research performed at our beamline has covered most of transition metals involved in Li-ion batteries, and key elements beyond Li-ion battery, such as Phosphorus, Sulfur, Potassium, etc. To understand and predict how catalysts and/or energy storage materials function, it’s very important to characterize the materials under actual reaction conditions (in-situ or operando). 9-BM has upgraded its capabilities to support the advanced needs for the more challenging research needs. In this talk, the capabilities will be displayed with a few case studies from the collaborators.

X-ray absorption spectroscopy: Exploring batteries at APS beamline 9-BM

251st National Meeting (2016)

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