scholarly journals Structural evolution of an intermetallic Pd–Zn catalyst selective for propane dehydrogenation

2015 ◽  
Vol 17 (42) ◽  
pp. 28144-28153 ◽  
Author(s):  
James R. Gallagher ◽  
David J. Childers ◽  
Haiyan Zhao ◽  
Randall E. Winans ◽  
Randall J. Meyer ◽  
...  
Keyword(s):  
Structural Evolution ◽  
Propane Dehydrogenation ◽  
Synchrotron Xrd

Formation of PdZn intermetallic nanoalloys selective for propane dehydrogenation tracked using in situ synchrotron XRD.

Structural evolution of BaCe0.65Zr0.20Y0.15O3-δ-Ce0.85Gd0.15O2-δ composite MPEC membrane by in-situ synchrotron XRD analyses

2019 ◽  
Vol 13 ◽  
pp. 331-341 ◽  
Author(s):  
Cecilia Mortalò ◽  
Antonio Santoru ◽  
Claudio Pistidda ◽  
Elena Rebollo ◽  
Marta Boaro ◽  
...  
Keyword(s):  
Structural Evolution ◽  
Synchrotron Xrd

An in situ structural study on the synthesis and decomposition of LiNiO2

2020 ◽  
Vol 8 (4) ◽  
pp. 1808-1820 ◽  
Author(s):  
Matteo Bianchini ◽  
François Fauth ◽  
Pascal Hartmann ◽  
Torsten Brezesinski ◽  
Jürgen Janek
Keyword(s):  
Solid State ◽  
High Resolution ◽  
Structural Study ◽  
Structural Evolution ◽  
Solid State Synthesis ◽  
Decomposition Processes ◽  
Synchrotron Xrd

High-resolution in situ synchrotron XRD shades new light on structural evolution during solid-state synthesis and decomposition processes in LiNiO2.

scholarly journals Structural evolution of high energy density V3+/V4+ mixed valent Na3V2O2x(PO4)2F3−2x (x = 0.8) sodium vanadium fluorophosphate using in situ synchrotron X-ray powder diffraction

2014 ◽  
Vol 2 (21) ◽  
pp. 7766-7779 ◽  
Author(s):  
Paula Serras ◽  
Verónica Palomares ◽  
Teófilo Rojo ◽  
Helen E. A. Brand ◽  
Neeraj Sharma
Keyword(s):  
Structural Evolution ◽  
High Energy ◽  
High Energy Density ◽  
Sodium Ion Battery ◽  
Time Resolved ◽  
X Ray ◽  
Xrd Study ◽  
First Time ◽  
Synchrotron Xrd

The first time-resolved in situ synchrotron XRD study of a cathode in a functioning sodium-ion battery. We determine the reaction mechanism, lattice parameters, sodium evolution, and the maximum sodium extraction for the fresh and precycled cell.

STRUCTURAL EVOLUTION OF EXCEPTIONALLY IRON-DEFICIENT HEMATITE NANOCRYSTALS AS OBSERVED BY IN SITU SYNCHROTRON X-RAY DIFFRACTION

2019 ◽  
Author(s):  
Si Athena Chen ◽  
◽  
Peter Heaney ◽  
Jeffrey E. Post ◽  
Peter J. Eng ◽  
...  
Keyword(s):  
Structural Evolution ◽  
X Ray Diffraction ◽  
X Ray ◽  
Iron Deficient

In situ synchrotron small- and wide-angle X-ray study on the structural evolution of Kevlar fiber under uniaxial stretching

RSC Advances ◽  
2016 ◽  
Vol 6 (85) ◽  
pp. 81552-81558 ◽  
Author(s):  
Xiaoyun Li ◽  
Feng Tian ◽  
Ping Zhou ◽  
Chunming Yang ◽  
Xiuhong Li ◽  
...  
Keyword(s):  
Structural Evolution ◽  
Wide Angle ◽  
Uniaxial Stretching ◽  
X Ray ◽  
Kevlar Fiber

In situ SAXS and WAXS study on the structural evolution and mechanism of two different Kevlar fibers during stretching.

Structural evolution of NASICON-type Li1+xAlxGe2−x(PO4)3 using in situ synchrotron X-ray powder diffraction

2016 ◽  
Vol 4 (20) ◽  
pp. 7718-7726 ◽  
Author(s):  
Dorsasadat Safanama ◽  
Neeraj Sharma ◽  
Rayavarapu Prasada Rao ◽  
Helen E. A. Brand ◽  
Stefan Adams
Keyword(s):  
Solid Electrolyte ◽  
Diffraction Study ◽  
Powder Diffraction ◽  
Structural Evolution ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nasicon Type ◽  
Precursor Glass

In situ synchrotron X-ray diffraction study of the synthesis of solid-electrolyte Li1+xAlxGe2−x(PO4)3 (LAGP) from the precursor glass reveals that an initially crystallized dopant poor phase transforms into the Al-doped LAGP at 800 °C.

In-situ X-ray tomographic imaging study of gas and structural evolution in a commercial Li-ion pouch cell

2022 ◽  
Vol 520 ◽  
pp. 230818
Author(s):  
Wenjia Du ◽  
Rhodri E. Owen ◽  
Anmol Jnawali ◽  
Tobias P. Neville ◽  
Francesco Iacoviello ◽  
...  
Keyword(s):  
Structural Evolution ◽  
Imaging Study ◽  
Tomographic Imaging ◽  
X Ray ◽  
Li Ion

scholarly journals Imaging the Polymorphic Transformation in a Single Cu6Sn5 Grain in a Solder Joint

Materials ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2229 ◽  
Author(s):  
Flora Somidin ◽  
Hiroshi Maeno ◽  
Xuan Tran ◽  
Stuart D. McDonald ◽  
Mohd Mohd Salleh ◽  
...  
Keyword(s):  
Solder Joint ◽  
Polymorphic Transformation ◽  
Structural Evolution ◽  
Real Space ◽  
Transformation Behavior ◽  
New Approach ◽  
Transmission Electron ◽  
Contrast Pattern ◽  
In Situ Observations

In-situ observations of the polymorphic transformation in a single targeted Cu6Sn5 grain constrained between Sn-0.7 wt % Cu solder and Cu-Cu3Sn phases and the associated structural evolution during a solid-state thermal cycle were achieved via a high-voltage transmission electron microscope (HV-TEM) technique. Here, we show that the monoclinic η′-Cu6Sn5 superlattice reflections appear in the hexagonal η-Cu6Sn5 diffraction pattern upon cooling to isothermal 140 °C from 210 °C. The in-situ real space imaging shows that the η′-Cu6Sn5 contrast pattern is initiated at the grain boundary. This method demonstrates a new approach for further understanding the polymorphic transformation behavior on a real solder joint.

scholarly journals Temperature-Induced Desorption of Methyl tert-Butyl Ether Confined on ZSM-5: An In Situ Synchrotron XRD Powder Diffraction Study

Minerals ◽  
2017 ◽  
Vol 7 (3) ◽  
pp. 34 ◽  
Author(s):  
Elisa Rodeghero ◽  
Luisa Pasti ◽  
Elena Sarti ◽  
Giuseppe Cruciani ◽  
Roberto Bagatin ◽  
...  
Keyword(s):  
Diffraction Study ◽  
Powder Diffraction ◽  
Methyl Tert Butyl Ether ◽  
Butyl Ether ◽  
Tert Butyl ◽  
Synchrotron Xrd

scholarly journals Porous Silicon Structural Evolution from In-Situ Luminescence and Raman Measurements

1996 ◽  
Vol 431 ◽  
Author(s):  
D. R. Tallant ◽  
M. J. Kelly ◽  
T. R. Guilinger ◽  
R. L. Simpson
Keyword(s):  
Porous Silicon ◽  
Silicon Surface ◽  
Structural Evolution ◽  
Surface Oxidation ◽  
Ethanol Solution ◽  
Nonradiative Recombination ◽  
Photoluminescence Intensity ◽  
Exciton Migration ◽  
Photoluminescence Mechanism

AbstractWe performed in-situ photoluminescence and Raman measurements on an anodized silicon surface in the HF/ethanol solution used for anodization. The porous silicon thereby produced, while resident in HF/ethanol, does not immediately exhibit intense photoluminescence. Intense photoluminescence develops spontaneously in HF/ethanol after 18–24 hours or with replacement of the HF/ethanol with water. These results support a quantum confinement mechanism in which exciton migration to traps and nonradiative recombination dominates the de-excitation pathways until silicon nanocrystals are physically separated and energetically decoupled by hydrofluoric acid etching or surface oxidation. The porous silicon surface, as produced by anodization, shows large differences in photoluminescence intensity and peak wavelength over millimeter distances. Parallel Raman measurements implicate nanometer-size silicon particles in the photoluminescence mechanism.

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