Results 21 to 30 of about 25,467 (256)

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

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

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

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

SWIR XANES SPECTRA RAW.zip

, 2023
Raw Fe-XANES spectra of SWIR melt inclusions and glasses
Yves Moussallam (16979781)
core   +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

Oxidation state of Mayotte magmatic series

Volcanica
Following the 2018–2020 Fani Maoré submarine eruption near Mayotte Island, Indian Ocean, multiple oceanographic expeditions provide unprecedented access to fresh alkaline volcanic glasses spanning basanite to phonolite compositions from the East-Mayotte ...
Charles Le Losq, Roberto Moretti, Étienne Médard, Carole Berthod, Federica Schiavi, Nicolas Trcera, Élodie Lebas   +6 more
doaj   +1 more source

XANES spectra of transition metal compounds [PDF]

, 2009
An overview is given of the interactions that determine the XANES spectral shapes of transition metal compounds. The interactions are divided into ground state effects, final state effects and transition effects.
de Groot, F.M.F.
core   +2 more sources

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Effect of Ag-promotion on Pd catalysts by XANES

, 2013
Pd L 3 near-edge absorption measurements (XANES) were performed on four commercial acetylene hydrogenation catalyst samples with and without the Ag promoter.
Huang, D.C.; Chang, K.H.; Pong, W.F.; Tseng, P.K.; Hung, K.J.; Huang, W.F., Huang, W.F.   +1 more
core   +1 more source