ArticleThe journal of physical chemistry. C, Nanomaterials and interfaces2026
Probing Electrode Heterogeneity with 2D X‑ray Absorption Imaging.
Article in The journal of physical chemistry. C, Nanomaterials and interfaces, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Unlike traditional X-ray absorption spectroscopy (XAS), two-dimensional (2D) X-ray absorption imaging, which combines spatial and spectral resolution, enables the spatially resolved analysis of compositional and chemical reaction heterogeneity within a material. An X-ray absorption imaging system with a large field of view (FoV) and high spatial resolution allows for the visualization and investigation of the structure-activity relationships in reactive systems. In this study, a 2D MiniPIX detector was installed at the XAFS beamline at Elettra to investigate the differing reaction mechanisms of manganese hexacyanoferrate (MnHCF) in two distinct electrolytes. By analyzing the spatially resolved X-ray absorption near-edge structure (XANES) data collected at the Mn k-edge, the concentration maps as well as phase evolution and distribution images of manganese species were obtained. These results further clarify the role of the Mn
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