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X-ray Absorption Spectroscopy (XAS) core technique probing atomic structure via X-ray absorption. Analyzes XANES/EXAFS for electronic/coordination info. Key in materials, chemistry, biomedicine. Advancements enable in-situ studies, driving future sustainability applications.

X-ray Absorption Spectrometer (XAS) analyzes material structure via X-ray interaction. It precisely tunes energy to excite specific elements, providing data on valence states and electronic structure. Recent advances include SuperXAFS series with synchrotron-comparable data and tabletop systems for lab use. XAS is widely applied in materials science, chemistry, biology, and medicine to study crystal structures, reaction mechanisms, and biomacromolecules.

This guide details XAS experiment design, emphasizing uniform sample preparation (e.g., grinding, dilution, inert handling) and precise measurement control (e.g., scan ranges, beam parameters, data averaging). Proper execution ensures reliable data on local atomic structure, vital for catalysis and energy materials research.

XAS, an advanced synchrotron-based technique, analyzes X-ray absorption to reveal atomic-scale local electronic states and geometric structures (via XANES and EXAFS) nondestructively, widely used in materials and energy research.