Results 11 to 20 of about 39,813 (246)

Role of the exchange and correlation potential into calculating the x-ray absorption spectra of half-metallic alloys: the case of Mn and Cu K-edge XANES in Cu$_2$MnM (M = Al, Sn, In) Heusler alloys [PDF]

, 2007
This work reports a theoretical study of the x-ray absorption near-edge structure spectra at both the Cu and the Mn K-edge in several Cu$_2$MnM (M= Al, Sn and In) Heusler alloys.
A. Filipponi, C. R. Natoli, J. Chaboy, J. G. Norman, J. Soltys, K. Hatada, M. O. Krause, P. J. Webster, P. J. Webster, S. Ishida, V. Briois   +10 more
core   +2 more sources

Pb speciation and elemental distribution in leeks by micro X-ray fluorescence and X-ray absorption near-edge structure

Journal of Synchrotron Radiation, 2023
Vegetables are crucial to a human diet as they supply the body with essential vitamins, minerals, etc. Heavy metals that accumulate in plants consequently enter the food chain and endanger people's health.
Jianling Sun, Yongqiang Yang, Liqiang Luo   +2 more
doaj   +1 more source

Early diagenetic vivianite [Fe-3(PO4)(2) center dot 8H(2)O] in a contaminated freshwater sediment and insights into zinc uptake: a mu-EXAFS, mu-XANES and Raman study [PDF]

, 2008
The sediments in the Salford Quays, a heavily-modified urban water body, contain high levels of organic matter, Fe, Zn and nutrients as a result of past contaminant inputs.
Andrew J. Bennett, Ankley, Bartl, Binsted, Brown, Bryant, Calas, Carignan, Dodd, Emerson, Fagel, Fejdi, Frost, Frost, Gonsiorczyk, Hamilton-Taylor, Hamilton-Taylor, House, Hupfer, Jensen, Karen A. Hudson-Edwards, Kevin G. Taylor, Lee, Mori, Morse, Nriagu, Nriagu, Parkman, Parkman, Piriou, Pirrie, Rehr, Ross, Sarret, Schwertmann, Taylor, Taylor, Trivedi, Ueshima, Vladimir Vishnyakov, Wildner   +40 more
core   +1 more source

Ultrafast X-ray Photochemistry at European XFEL: Capabilities of the Femtosecond X-ray Experiments (FXE) Instrument

Applied Sciences, 2020
Time-resolved X-ray methods are widely used for monitoring transient intermediates over the course of photochemical reactions. Ultrafast X-ray absorption and emission spectroscopies as well as elastic X-ray scattering deliver detailed electronic and ...
Dmitry Khakhulin, Florian Otte, Mykola Biednov, Christina Bömer, Tae-Kyu Choi, Michael Diez, Andreas Galler, Yifeng Jiang, Katharina Kubicek, Frederico Alves Lima, Angel Rodriguez-Fernandez, Peter Zalden, Wojciech Gawelda, Christian Bressler   +13 more
doaj   +1 more source

Coupling between γ-irradiation and synchrotron-radiation-based XAFS techniques for studying Mn-doped ZnO nanoparticles

Journal of Synchrotron Radiation, 2022
γ-Irradiation and synchrotron-radiation-based X-ray absorption fine-structure (XAFS) spectroscopy have been used to induce structure disorder through the interaction of γ-rays (200 kGy) with fabricated Mn-doped ZnO nanoparticles (NPs) and then to examine
N. G. Imam, Messaoud Harfouche, A. A. Azab, S. Solyman   +3 more
doaj   +1 more source

Synchrotron radiation Ca K-edge 2D-XANES spectroscopy for studying the stratigraphic distribution of calcium-based consolidants applied in limestones

Scientific Reports, 2020
In Heritage Science, the evaluation of stone consolidation treatments by investigating the nature of in situ newly formed products and their penetration depth within the consolidated matrix is a grand challenge.
Letizia Monico, Laura Cartechini, Francesca Rosi, Wout De Nolf, Marine Cotte, Riccardo Vivani, Celeste Maurich, Costanza Miliani   +7 more
doaj   +1 more source

EXAFS study of nickel tetracarbonyl and nickel clusters in zeolite Y [PDF]

, 1986
Adsorption and thermal decomposition of Ni(CO)4 in the cage system of zeolite Y have been studied with EXAFS, electron microscopy and IR spectroscopy , Ni(CO)4 is adsorbed as an intact molecule in both cation - free zeolite Y and NaY. Symmetry changes
Bein, Thomas, McLain, S. J., Möller, Karin, Sayers, D. E., Stucky, Galen D., Woolery, G.   +5 more
core   +3 more sources

Spectromicroscopic Studies of Porous Silicon Oxide on Silicon Using Synchrotron Radiation

Конденсированные среды и межфазные границы, 2020
This work is dedicated to microscopic synchrotron studies of the morphology, atomic, and electronic structure of an array of submicron-sized pores in a SiO2 layer on silicon formed with the use of ion-track technology in combination with chemical etching
Elena V. Parinova, Dmitry Marchenko, Aleksander K. Fedotov, Dmitry A. Koyuda, Julia A. Fedotova, Ruslan Ovsyanniko, Sergey Yu. Turishchev   +6 more
doaj   +1 more source

Charge–discharge properties of LiMn2O4-group positive electrode active materials for lithium-ion batteries using high-throughput experimental screening and machine learning models

Science and Technology of Advanced Materials: Methods, 2023
To improve the charge – discharge properties of an LiMn2O4 positive electrode active material for a lithium-ion battery, the effect of additive elements was investigated using high-throughput experiments and materials informatics techniques.
Shin Tajima, Mitsutaro Umehara, Kensuke Takechi   +2 more
doaj   +1 more source

Parameters Influencing Sulfur Speciation in Environmental Samples Using Sulfur K-Edge X-Ray Absorption Near-Edge Structure

Journal of Analytical Methods in Chemistry, 2012
This paper aims to enhance the credibility of applying the sulfur K-edge XANES spectroscopy as an innovative “fingerprint” for characterizing environmental samples.
Siwatt Pongpiachan, Kanjana Thumanu, Charnwit Kositanont, Klaus Schwarzer, Jörg Prietzel, Phoosak Hirunyatrakul, Itthipon Kittikoon   +6 more
doaj   +1 more source