Results 261 to 270 of about 330,512 (326)

Simultaneous Formation of Arsenic Nitride Chalcogenides As3NS3 and As3NSe3 and Arsenic–Chalcogen Zintl Anions by Ammonothermal Reactions

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
Mn, As, and S or Se react in liquid NH3 to the Zintl ions (As4S6)2– and (As2Se6)2–. Simultaneously, the arsenic nitride chalcogenides As3NS3 and As3NSe3 are formed. Their isotypic structures contain planar trigonal NAs3 groups connected via chalcogen bridges to 1D‐strands forming channels that can host solvent molecules.
Frederik Hermann   +4 more
wiley   +1 more source

Signal‐to‐noise and spatial resolution in in‐line imaging. 3. Optimization using a simple model

open access: yesJournal of Synchrotron Radiation, EarlyView.
Geometrical magnification and X‐ray energy are optimized with respect to spatial resolution, contrast, noise, radiation dose and other image quality characteristics. The optimization is performed using a simple theoretical model of a homogeneous edge feature embedded in a bulk uniform sample, and the resulting generic analytical expressions for image ...
Timur E. Gureyev   +2 more
wiley   +1 more source

High‐throughput X‐ray total scattering measurement system at BL04B2 of SPring‐8

open access: yesJournal of Synchrotron Radiation, EarlyView.
A high‐throughput X‐ray total scattering system was newly installed in BL04B2, achieving more than ten times faster acquisition times than those of the conventional setup.X‐ray total scattering is widely used for analyzing pair distribution functions (PDFs) to elucidate the local structure of materials.
Hiroki Yamada   +19 more
wiley   +1 more source

A dedicated beamline for wide‐energy‐range X‐ray spectroscopy at SSRF: combining soft and hard X‐ray capabilities

open access: yesJournal of Synchrotron Radiation, EarlyView.
A wide‐range beamline (130–10000 eV) combining both soft X‐ray and hard X‐ray photons has been constructed at SSRF for in situ X‐ray photoemission spectroscopy investigations of the solid–gas interface, and for hard X‐ray photoemission spectroscopy studies with layer‐by‐layer resolution.The advancement of renewable energy critically depends on the ...
Zhaofeng Liang   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy