Results 11 to 20 of about 1,135,801 (376)

X-ray Absorption Spectroscopy

open access: yesNature Reviews Methods Primers
X-ray absorption spectroscopy (XAS) can be used to analyze electronic structures and local structures around the metal ion in metal complexes. XAS is usually divided into two regions: X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS). XANES mainly reflects the electronic structures, and EXAFS contains the
Graham N. George, Ingrid J. Pickering
semanticscholar   +6 more sources

In situ X-ray spectroscopies beyond conventional X-ray absorption spectroscopy on deciphering dynamic configuration of electrocatalysts

open access: yesNature Communications, 2023
Realizing viable electrocatalytic processes for energy conversion/storage strongly relies on an atomic-level understanding of dynamic configurations on catalyst-electrolyte interface.
Jiali Wang   +6 more
doaj   +2 more sources

In Situ X-ray Absorption Spectroscopy Studies of Nanoscale Electrocatalysts

open access: yesNano-Micro Letters, 2019
Nanoscale electrocatalysts have exhibited promising activity and stability, improving the kinetics of numerous electrochemical reactions in renewable energy systems such as electrolyzers, fuel cells, and metal-air batteries.
Maoyu Wang   +3 more
doaj   +2 more sources

Laser plasma x-ray source for ultrafast time-resolved x-ray absorption spectroscopy

open access: yesStructural Dynamics, 2015
We describe a laser-driven x-ray plasma source designed for ultrafast x-ray absorption spectroscopy. The source is comprised of a 1 kHz, 20 W, femtosecond pulsed infrared laser and a water target.
L. Miaja-Avila   +8 more
doaj   +2 more sources

Revealing solid electrolyte interphase formation through interface-sensitive Operando X-ray absorption spectroscopy

open access: yesNature Communications, 2022
The solid electrolyte interphase (SEI) that forms on Li-ion battery anodes is critical to their long-term performance, however observing SEI formation processes at the buried electrode-electrolyte interface is a significant challenge.
J. Swallow   +12 more
semanticscholar   +1 more source

Attosecond x-ray transient absorption spectroscopy in graphene

open access: yesPhysical Review Research, 2021
Real-time observations of the coherent electron dynamics induced by ultrashort light pulses in condensed-matter systems have remained elusive due to limitations in existing attosecond devices.
Giovanni Cistaro   +3 more
doaj   +1 more source

Ambient pressure X-ray absorption spectroscopy at ME2-BL02B of SSRF and its application in catalysis

open access: yesHe jishu, 2021
BackgroundThe traditional soft X-ray absorption spectroscopy (XAS) method can only work under ultra-high vacuum conditions and cannot be used to detect changes in the electronic structure of samples under real conditions.
WANG Wei   +5 more
doaj   +1 more source

X-ray absorption spectroscopy and X-ray diffraction data for molybdenum minerals and compounds

open access: yesData in Brief, 2022
We report Mo K- and LIII-edge X-ray absorption spectroscopy (XAS) and X-ray diffraction (XRD) data collected for 15 molybdenum minerals and compounds sourced from museum collections, mineral dealers, and chemical suppliers. The samples were finely ground
Valerie A. Schoepfer   +1 more
doaj   +1 more source

Database of ab initio L-edge X-ray absorption near edge structure

open access: yesScientific Data, 2021
Measurement(s) near-edge X-ray absorption fine structure spectroscopy • L-edge XANES Technology Type(s) X-ray absorption spectroscopy Machine-accessible metadata file describing the reported data: https://doi.org/10.6084/m9.figshare ...
Yiming Chen   +11 more
doaj   +1 more source

X-ray Absorption Spectroscopy of Phosphine-Capped Au Clusters

open access: yesInorganics, 2023
The structural determination of ultrasmall clusters remains a challenge due to difficulties in crystallisation. Often the atomically precise clusters undergo structural change under the influence of the environment.
Shailendra K. Sharma   +3 more
doaj   +1 more source

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