Results 1 to 10 of about 25,467 (256)

Synchrotron beamline setup enabling quasi-simultaneous PXRD and XANES measurements: case study of Fischer–Tropsch catalyst reduction at 60 bar [PDF]

Journal of Synchrotron Radiation
Powder X-ray diffraction (PXRD) and X-ray absorption near-edge structure (XANES) spectroscopy are complementary techniques for probing cobalt-based (Co-based) Fischer–Tropsch synthesis (FTS) catalyst structures.
Lipeng Yao, G. Leendert Bezemer, Irene. M. N. Groot, Oleg Konovalov, Maciej Jankowski   +4 more
doaj   +2 more sources

Atomic‐Level CuOx‐CoOx‐Pd Interfacial Engineering Enables Hierarchical Synergy for High‐Efficiency ORR Pathways and Boosted Power Output in Alkaline Fuel Cells [PDF]

Advanced Science
The sluggish kinetics of the oxygen reduction reaction (ORR) and the high cost of Pt‐based catalysts remain major barriers for alkaline fuel cell (AFC) technologies.
Yang‐Yang Hsu, Ching‐Hua Fan, Kuan‐Wen Wang, Kuang‐Kuo Wang, Nozomu Hiraoka, Hirofumi Ishii, Ting‐Shan Chan, Po‐Chun Chen, Tsan‐Yao Chen   +8 more
doaj   +2 more sources

Improved precision in As speciation analysis with HERFD-XANES at the As K-edge: the case of As speciation in mine waste

Journal of Synchrotron Radiation, 2022
High-energy-resolution fluorescence-detected (HERFD) X-ray absorption near-edge spectroscopy (XANES) is a spectroscopic method that allows for increased spectral feature resolution, and greater selectivity to decrease complex matrix effects compared with
Emily M. Saurette, Y. Zou Frinfrock, Brent Verbuyst, David W. Blowes, Joyce M. McBeth, Carol J. Ptacek   +5 more
doaj   +1 more source

Электронное строение диоксида германия со структурой рутила по данным ab initio компьютерного моделирования

Конденсированные среды и межфазные границы, 2023
Работа посвящена исследованиям электронного строения тетрагональной кристаллической модификации диоксида германия. Электронная структура исследована теоретически в рамках метода линеаризованных присоединенных плоских волн с помощью программного пакета ...
Максим Дмитриевич Манякин, Сергей Иванович Курганский   +1 more
doaj   +1 more source

Emergence of the first XAFS/XRF beamline in the Middle East: providing studies of elements and their atomic/electronic structure in pluridisciplinary research fields

Journal of Synchrotron Radiation, 2022
XAFS/XRF is a general-purpose absorption spectroscopy beamline at the Synchrotron-light for Experimental Science and Applications in the Middle East (SESAME), Jordan.
Messaoud Harfouche, Mahmoud Abdellatief, Yazeed Momani, Anas Abbadi, Mohammad Al Najdawi, Mustafa Al Zoubi, Basil Aljamal, Salman Matalgah, Latif U. Khan, Andrea Lausi, Giorgio Paolucci   +10 more
doaj   +1 more source

Heavy metals concentrations and speciation of Pb and Ni in airborne particulate matter over two residential sites in Greater Cairo – reflection from synchrotron radiation

Journal of Synchrotron Radiation, 2022
Synchrotron radiation-based techniques [X-ray absorption near-edge structure (XANES) and X-ray fluorescence (XRF)] combined with inductively coupled plasma-mass spectrometry (ICP-MS) were used for the assessment of heavy metals concentrations as well as ...
Mohamed H. E. Monged, N. G. Imam, Giuliana Aquilanti, Simone Pollastri, A. M. Rashad, János Osán   +5 more
doaj   +1 more source

Oxidation state analysis of LiFeSixP1-xO4/C (x = 0.06) with X-ray absorption near edge structure (XANES) in Fe K-edge and Si K-edge

Journal of Physics: Theories and Applications, 2021
The development of LiFePO4 as a cathode materials on lithium-ion battery was increased with the use of additional techniques such as atomic doping and coating.
Sahara Hamas Intifadhah, Vera Laviara Maghfirohtuzzoimah, Pelangi Az-zahra, Wantana Klysubun, Fahmi Astuti, Mochamad Zainuri, Darminto Darminto   +6 more
doaj   +1 more source

The Influences of Magnesium upon Calcium Phosphate Mineral Formation and Structure as Monitored by X-ray and Vibrational Spectroscopy

Soil Systems, 2020
Calcium phosphate minerals are typically the solubility-limiting phase for phosphate in calcareous soils. Magnesium (Mg), despite being present in high concentrations in calcareous soils, has been largely neglected in the study of formation and ...
David M. Hilger, Jordan G. Hamilton, Derek Peak   +2 more
doaj   +1 more source

TXM-Sandbox: an open-source software for transmission X-ray microscopy data analysis

Journal of Synchrotron Radiation, 2022
A transmission X-ray microscope (TXM) can investigate morphological and chemical information of a tens to hundred micrometre-thick specimen on a length scale of tens to hundreds of nanometres.
Xianghui Xiao, Zhengrui Xu, Feng Lin, Wah-Keat Lee   +3 more
doaj   +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