Results 41 to 50 of about 1,135,801 (376)

A polycrystalline diamond micro-detector for X-ray absorption fine-structure measurements

Journal of Synchrotron Radiation, 2022
The microminiaturization of detectors used to record the intensity of X-ray beams is very favorable for combined X-ray experimental techniques. In this paper, chemical-vapor-deposited (CVD) polycrystalline diamond film was used to fabricate a micro ...
Lei Yao, Yunpeng Liu, Bingjie Wang, Lixiong Qian, Xueqing Xing, Guang Mo, Zhongjun Chen, Zhonghua Wu   +7 more
doaj   +1 more source

Characterization of nanoparticle electrocatalysts using X-ray absorption spectroscopy

Zaštita Materijala, 2015
X-ray absorption spectroscopy (XAS) is a non-destructive spectroscopic technique commonly used with synchrotron radiation source and measures the changes of absorption coefficient as the function of the x-ray energy.
Nebojša Marinković, Radoslav R. Adžić   +1 more
doaj   +1 more source

Application of X‐Ray Absorption Spectroscopy in Electrocatalytic Water Splitting and CO2 Reduction

Small Science, 2021
Renewable energy conversion and storage are crucial in aiding the worldwide efforts to replace fossil fuels and achieve carbon neutrality. In particular, electrocatalytic water splitting to obtain H2 and CO2 reduction to high‐value‐added fuels can lead ...
Bin Wang, Shengqi Chu, Lirong Zheng, Xiaodong Li, Jiangwei Zhang, Fuxiang Zhang   +5 more
doaj   +1 more source

Luminescent and Scintillating Properties of Lanthanum Fluoride Nanocrystals in Response to Gamma/Neutron Irradiation: Codoping with Ce Activator, Yb Wavelength Shifter, and Gd Neutron Captor [PDF]

, 2016
A novel concept for detection and spectroscopy of gamma rays, and detection of thermal neutrons based on codoped lanthanum fluoride nanocrystals containing gadolinium is presented.The trends of colloidal synthesis of the mentioned material, LaF3 co-doped
Blostein, Juan Jerónimo, Brito, David Rondón, Mayer, Roberto E., Palomino, Luis A. Rodríguez, Sidelnik, Iván, Vargas, José M.   +5 more
core   +2 more sources

X-Ray Absorption Spectroscopy

Acta Physica Polonica A, 1994
X-ray absorption spectroscopy, today widely used as a tool for structural investigations, is described. Theoretically it is shown that above an absorption edge the absorption coefficient is well approximated by a sum of terms, each one describing a particular path followed by the photoelectron outgoing from the atom.
openaire   +2 more sources

Electronic structure of Pr2MnNiO6 from x-ray photoemission, absorption and density functional theory

, 2017
The electronic structure of double perovskite Pr2MnNiO6 is studied using core x-ray photoelectron spectroscopy and x-ray absorption spectroscopy. The 2p x-ray absorption spectra show that Mn and Ni are in 2+ and 4+ states respectively.
Balasubramanian, Padmanabhan, de Groot, Frank MF, Elizabeth, Suja, Gupta, Mukul, Joshi, Shalik Ram, Maitre, Tulika, Malik, Vivek, Maurya, Satyendra, Ray, Avijeet, Singh, Amit Kumar, Singh, Ankita, Varma, Shikha, Yadav, Ruchika   +12 more
core   +1 more source

Denoising framework for X-ray absorption spectroscopy data

Journal of Synchrotron Radiation
X-ray absorption spectroscopy (XAS) is a powerful tool for probing the structural and electronic properties of materials, but its analysis is often challenging due to the low signal-to-noise ratio of the XAS spectra.
Tomas Aidukas, Ilnura Usmanova, Benjamín Béjar Haro, Maarten Nachtegaal, Adam H. Clark   +4 more
doaj   +1 more source

X-ray induced electronic structure change in CuIr$_2$S$_4$

, 2011
The electronic structure of CuIr$_2$S$_4$ has been investigated using various bulk-sensitive x-ray spectroscopic methods near the Ir $L_3$-edge: resonant inelastic x-ray scattering (RIXS), x-ray absorption spectroscopy in the partial fluorescence yield ...
Casa, D., Cheong, S. W., Choi, K. R., Gog, T., Gretarsson, H., Kim, Jungho, Kim, Young-June   +6 more
core   +1 more source

Metallogenomics and biological X-ray absorption spectroscopy [PDF]

Journal of Synchrotron Radiation, 2004
An overview of the second special issue of the journal on biological applications of X-ray absorption spectroscopy (BioXAS) is presented. The emphasis is on the study of metalloproteins in the context of structural genomics programmes (metallogenomics).
Roger Fourme, Isabella Ascone, Keith O. Hodgson, S. Samar Hasnain   +3 more
openaire   +4 more sources

Operando X-Ray Absorption Spectroscopy Shows Iron Oxidation Is Concurrent with Oxygen Evolution in Cobalt-Iron (Oxy)hydroxide Electrocatalysts.

Angewandte Chemie, 2018
Iron cations are essential for the high activity of nickel and cobalt-based (oxy)hydroxides for the oxygen evolution reaction, but the role of iron in the catalytic mechanism remains under active investigation.
Lisa J. Enman, M. Stevens, M. Dahan, M. Nellist, M. C. Toroker, S. Boettcher   +5 more
semanticscholar   +1 more source