Results 31 to 40 of about 40,331 (294)

Machine learning approaches for ELNES/XANES

Microscopy, 2020
Abstract Materials characterization is indispensable for materials development. In particular, spectroscopy provides atomic configuration, chemical bonding and vibrational information, which are crucial for understanding the mechanism underlying the functions of a material.
Teruyasu, Mizoguchi, Shin, Kiyohara
openaire   +2 more sources

An in situ XAS study of the cobalt rhenium catalyst for ammonia synthesis [PDF]

, 2018
A cobalt rhenium catalyst active for ammonia synthesis at 400 °C and ambient pressure was studied using in situ XAS to elucidate the reducibility and local environment of the two metals during reaction conditions.
Granlund Kirste, Karsten, Hargreaves, Justin S.J., Laassiri, Said, Mathisen, Karina, McAulay, Kate, McFarlane, Andrew R., Spencer, Nicholas A.   +6 more
core   +3 more sources

Micro-XANES by EPMA spectrometer

Journal of Synchrotron Radiation, 1999
XANES (X-ray absorption near edge structure) spectrum of an area of a few tens of square micrometers of MgO is measured with an EPMA (electron probe X-ray microanalyzer) using a novel method -EXEFS (extended X-ray emission fine structure) method -proposed by the present authors.
J, Kawai, K, Hayashi, H, Takahashi, Y, Kitajima   +3 more
openaire   +2 more sources

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

How does iron interact with sporopollenin exine capsules? An X-ray absorption study including microfocus XANES and XRF imaging [PDF]

, 2014
Sporopollenin exine capsules (SECs) derived from plant spores and pollen grains have been proposed as adsorption, remediation and drug delivery agents. Despite many studies there is scant structural data available.
Archibald, Stephen J., Atkin, Stephen L., Bras, Wim, Diego-Taboada, Alberto, Mackenzie, Grahame, Mosselmans, J. Frederick W., Nikitenko, Sergey, Quinn, Paul D., Thomas, Michael F., Young, Nigel A.   +9 more
core   +1 more source

Towards Blue Long-Lasting Luminescence of Eu/Nd-Doped Calcium-Aluminate Nanostructured Platelets via the Molten Salt Route

Nanomaterials, 2019
Calcia-alumina binary compounds doped with rare earths and some transition metals cations show persistent luminescence from the visible to the infrared range.
Rocío E. Rojas-Hernandez, Fernando Rubio-Marcos, Aida Serrano, Eduardo Salas, Irina Hussainova, José Francisco Fernandez   +5 more
doaj   +1 more source

Spatial distribution of photoelectrons participating in formation of x-ray absorption spectra

, 2002
Interpretation of x-ray absorption near-edge structure (XANES) experiments is often done via analyzing the role of particular atoms in the formation of specific peaks in the calculated spectrum. Typically, this is achieved by calculating the spectrum for
A. Šimůnek, B. Poumellec, C.R. Natoli, C.R. Natoli, D. Dill, D.D. Vvedensky, D.D. Vvedensky, F. Bridges, F. Farges, G. Bergerhoff, G. Breit, H.A. Bethe, J. Mustre de Leon, J.E. Müller, J.J. Rehr, L.A. Bugaev, O. Šipr, O. Šipr, O. Šipr, O. Šipr, O. Šipr, P.A. Lee, P.J. Durham, S. Bocharov, S. Della Longa, S.I. Zabinsky, T. Uozumi, V. Jeanne-Rose, V. Jeanne-Rose, W. Kohn, W.E. Pickett, X.S. Feng, Y. Joly, Yu.F. Migal, Z.Y. Wu, Z.Y. Wu   +35 more
core   +2 more sources

Experimental evidence of thermal fluctuations on the X-ray absorption near-edge structure at the aluminum K-edge

, 2012
After a review of temperature-dependent experimental x-ray absorption near-edge structure (XANES) and related theoretical developments, we present the Al K-edge XANES spectra of corundum and beryl for temperature ranging from 300K to 930K.
A. Bordage, B. Ravel, C. R. Natoli, Ch. Brouder, D. Cabaret, D. Duflot, D. Li, D. Li, D. Manuel, G. Herzberg, M. Abramowitz, N. Trcera, Ph. Sainctavit, R. M. Hazen   +13 more
core   +4 more sources

Polarized XANES of iron porphyrins [PDF]

Physica B: Condensed Matter, 1989
Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/27901/1/0000321 ...
Wang, S., Waldo, Geoffrey S., Fronko, R. D., Penner-Hahn, James E.   +3 more
openaire   +2 more sources

Speciation of phosphorus in a fertilized, reduced-till soil system: in-field treatment incubation study [PDF]

, 2012
Citation: Khatiwada, Raju, Ganga M. Hettiarachchi, David B. Mengel, and Mingwei Fei. “Speciation of Phosphorus in a Fertilized, Reduced-Till Soil System: In-Field Treatment Incubation Study.” Soil Science Society of America Journal 76, no. 6 (2012): 2006–
Arai, Beauchemin, Benbi, Bordoli, Bray, Bremner, Chapman, Combs, Dalas, David B. Mengel, Fixen, Foth, Frank, Ganga M. Hettiarachchi, Hansen, Hanson, Hedley, Helyar, Hesterberg, Hettiarachchi, Hingston, Hingston, Hobbs, Holloway, Hsu, Khare, Kilmer, Lawton, Lindsay, Lombi, Lombi, Malinowski, Mallarino, Marcus, McBeath, McLean, Mehlich, Menon, Mingwei Fei, Moody, Murphy, Myers, Nachtegaal, Oh, Peak, Pierzynski, Pierzynski, Raju Khatiwada, Ravel, Rietra, Saggar, Salcedo, SAS Institute, Sato, Schwab, Schwertmann, Sharpley, Sharpley, Simard, Sims, Soil Survey Laboratory Staff, Sposito, Thomas, Toor, Warncke, Watanabe, Wateson, Whitney   +67 more
core   +2 more sources