Results 51 to 60 of about 40,331 (294)

Laboratory von H\'amos X-ray Spectroscopy for Routine Sample Characterization [PDF]

, 2016
High energy resolution, hard X-ray spectroscopies are powerful element selective probes of the electronic and local structure of matter, with diverse applications in chemistry, physics, biology and materials science.
Bunker G., György Vankó, Jakub Szlachetko, Koningsberger D., Stern E. A., Zoltán Németh, Éva G. Bajnóczi   +6 more
core   +2 more sources

XANES OF MANGANESE COORDINATION COMPLEXES [PDF]

Le Journal de Physique Colloques, 1986
XANES of Mn compounds of known structure and electronic properties [Mn (II), Mn (III), Mn (IV)] is reported. Preedge, Edge and Post-Edge zone are detailed. Dependence on oxidation state, geometry and nuclearity are discussed. Preedge structure is observed and compared with d-orbital splitting obtained from visible NIR spectroscopy.
Cartier, C., Verdaguer, M., Menage, S., Girerd, J., Tuchagues, J., Mabad, B.   +5 more
openaire   +2 more sources

Anomalous Pressure‐Temperature Ultrahigh Sensitivities in Atomically Engineered Carbonitride MXenes for Multifunctional Wearable Human–Machine Interfaces: Joint Computational–Experimental Elucidations

Advanced Functional Materials, EarlyView.
Atomically engineered layered 2D Ti3CNTz carbonitride MXene exhibits ultrahigh heat and pressure sensitivity, enabling dual‐mode sensors with 300%–400% performance enhancement and durability for real‐time health‐monitoring interface devices. Precise nitrogen incorporation (e.g., Ti3C1.8N0.2Tz) boosts conductivity, enhancing temperature response, while ...
Debananda Mohapatra, Ju‐Hyoung Han, Hyun Jin Kang, Jeong Eun Byun, Seonghun Lee, Sanghyuk Lee, Yeseul Son, Jaeeun Park, Tae Joo Shin, Youngho Kang, Jung Woo Lee, Soon‐Yong Kwon, Soo‐Hyun Kim   +12 more
wiley   +1 more source

TXM-Pal: a companion software for advanced data processing in spectroscopic X-ray microscopy

Journal of Synchrotron Radiation
Transmission X-ray microscopy (TXM) is a powerful and non-destructive tool for interpreting the chemical states of a wide range of materials. It utilizes X-ray absorption near-edge structure (XANES) for the chemically sensitive mapping of specific ...
Sugeun Jo, Sangwoo Kim, Jun Lim
doaj   +1 more source

Trained to corrode: Cultivation in the presence of Fe(III) increases the electrochemical activity of iron reducing bacteria – An in situ electrochemical XANES study

Electrochemistry Communications, 2020
This paper reports results from in situ electrochemical X-ray absorption near-edge spectroscopy (XANES) studies of the corrosion processes on model thin iron films in the presence of iron reducing bacteria Shewanella putrefaciens. Here we investigate the
Nina Wurzler, Jan David Schutter, Ralph Wagner, Matthias Dimper, Dirk Lützenkirchen-Hecht, Ozlem Ozcan   +5 more
doaj   +1 more source

Phonon effects on x-ray absorption and nuclear magnetic resonance spectroscopies

, 2015
In material sciences, spectroscopic approaches combining ab initio calculations with experiments are commonly used to accurately analyze the experimental spectral data.
Bordage, Amélie, Brouder, Christian, Cabaret, Delphine, Errea, Ion, Gervais, Christel, Mauri, Francesco, Nemausat, Ruidy, Trcera, Nicolas   +7 more
core   +3 more sources

Pressure-induced coordination change of Ti in silicate glass: a XANES study [PDF]

, 1993
The effect of pressure on titanium coordination in glasses, with composition K2TiSi4O11, quenched isobarically from liquids equilibrated at high pressure (5, 10, 15, 20, 25, 30 kbar respectively) and T=1600° C has been investigated by X-ray absorption ...
Dingwell, Donald B., Mottana, Annibale, Paris, Eleonora, Romano, Claudia, Seifert, Friedrich   +4 more
core   +1 more source

Real Time Observation of X-ray-Induced Surface Modification Using Simultaneous XANES and XEOL-XANES

Analytical Chemistry, 2013
In experiments preliminary to the design of an X-ray-excited optical luminescence (XEOL)-based chemical mapping tool we have used X-ray micro (4.5 × 5.2 μm) and macro (1 × 6 mm) beams with similar total fluxes to assess the effects of a high flux density beam of X-rays at energies close to an absorption edge on inorganic surfaces in air.
Adriaens A., Quinn P., Nikitenko S., Dowsett M.G.   +3 more
openaire   +3 more sources

Fabrication of Pyridinic Nitrogen‐Functionalized Carbon Cloth for High‐Performance Iron‐Chromium Flow Batteries

Advanced Functional Materials, EarlyView.
The carbon cloth electrode with targeted pyridinic nitrogen doping, achieved via urea pyrolysis, effectively modulates the adsorption of Cr(II) species and enhances electron transfer, leading to significantly improved kinetics of the Cr(II)/Cr(III) reaction. The material demonstrates a high discharge capacity of 689.3 mAh and an energy efficiency of 72.
Jinfeng Yi, Senwei Zeng, Runfa Zhao, Guangfu Wu, Zhi Liu, Tianhang Zhou, Chunming Xu, Jia Guo, Quan Xu, Yingchun Niu   +9 more
wiley   +1 more source

Local Structure and Magnetism of LiFeSi0.01P0.99O4/C as a Cathode Material on Lithium-Ion Battery

Journal of Magnetism and Its Applications, 2021
The oxidation state and local structure of LiFeSi0.01P0.99O4/C composites as a cathode on lithium-ion battery were investigated by Fe K-edge X-ray Absorption Near Edge Spectroscopy (XANES) and Extended X-ray Absorption Fine Structure (EXAFS). The LiFeSi0.
Vera Laviara Maghfirohtuzzoimah, Sahara Hamas Intifadhah, Pelangi Az-zahra, Wantana Klysubun, Dita Puspita Sari, Isao Watanabe, Mochamad Zainuri, Fahmi Astuti   +7 more
doaj   +1 more source