scholarly journals Application of Synchrotron Radiation for In Situ XRD Investigation of Zirconium Hydrides Formation at Gas-phase Hydrogenation

2016 ◽  
Vol 84 ◽  
pp. 342-348 ◽  
Author(s):  
Maxim S. Syrtanov ◽  
Viktor N. Kudiiarov ◽  
Egor B. Kashkarov ◽  
Alexander N. Shmakov ◽  
Zakhar S. Vinokurov ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Gas Phase ◽  
In Situ Xrd ◽  
Zirconium Hydrides

scholarly journals Investigation of CaO–CO2 reaction kinetics by in-situ XRD using synchrotron radiation

2015 ◽  
Vol 127 ◽  
pp. 13-24 ◽  
Author(s):  
A. Biasin ◽  
C.U. Segre ◽  
G. Salviulo ◽  
F. Zorzi ◽  
M. Strumendo
Keyword(s):  
Synchrotron Radiation ◽  
Reaction Kinetics ◽  
In Situ Xrd

Memory Effect of Activated Mg–Al Hydrotalcite: In Situ XRD Studies during Decomposition and Gas-Phase Reconstruction

2007 ◽  
Vol 13 (3) ◽  
pp. 870-878 ◽  
Author(s):  
Javier Pérez-Ramírez ◽  
Sònia Abelló ◽  
Niek M. van der Pers
Keyword(s):  
Gas Phase ◽  
Memory Effect ◽  
Phase Reconstruction ◽  
In Situ Xrd ◽  
Xrd Studies

scholarly journals In Situ Observation of Electron-Beam-Induced Formation of Nano-Structures in PbTe

Nanomaterials ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 163
Author(s):  
Iryna Zelenina ◽  
Igor Veremchuk ◽  
Yuri Grin ◽  
Paul Simon
Keyword(s):  
Electron Beam ◽  
Gas Phase ◽  
Threshold Current ◽  
Threshold Current Density ◽  
Atomic Scale ◽  
In Situ Observation ◽  
Nano Structures ◽  
Transmission Electron ◽  
Initial Crystal

Nano-scaled thermoelectric materials attract significant interest due to their improved physical properties as compared to bulk materials. Well-shaped nanoparticles such as nano-bars and nano-cubes were observed in the known thermoelectric material PbTe. Their extended two-dimensional nano-layer arrangements form directly in situ through electron-beam treatment in the transmission electron microscope. The experiments show the atomistic depletion mechanism of the initial crystal and the recrystallization of PbTe nanoparticles out of the microparticles due to the local atomic-scale transport via the gas phase beyond a threshold current density of the beam.

scholarly journals An Atmospheric Origin for HCN-Derived Polymers on Titan

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 965
Author(s):  
Zoé Perrin ◽  
Nathalie Carrasco ◽  
Audrey Chatain ◽  
Lora Jovanovic ◽  
Ludovic Vettier ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Gas Phase ◽  
Formation Process ◽  
Upper Atmosphere ◽  
Gas Mixture ◽  
Space Probe ◽  
Atmospheric Haze ◽  
Formation And Evolution ◽  
Haze Formation

Titan’s haze is strongly suspected to be an HCN-derived polymer, but despite the first in situ measurements by the ESA-Huygens space probe, its chemical composition and formation process remain largely unknown. To investigate this question, we simulated the atmospheric haze formation process, experimentally. We synthesized analogues of Titan’s haze, named Titan tholins, in an irradiated N2–CH4 gas mixture, mimicking Titan’s upper atmosphere chemistry. HCN was monitored in situ in the gas phase simultaneously with the formation and evolution of the haze particles. We show that HCN is produced as long as the particles are absent, and is then progressively consumed when the particles appear and grow. This work highlights HCN as an effective precursor of Titan’s haze and confirms the HCN-derived polymer nature of the haze.

Development of a long trace profiler in situ at National Synchrotron Radiation Research Center

2019 ◽  
Vol 90 (2) ◽  
pp. 021716 ◽  
Author(s):  
Shang-Wei Lin ◽  
Duan-Jen Wang ◽  
Huang-Wen Fu ◽  
Huang-Ming Tsai ◽  
Chih-Yu Hua ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Research Center ◽  
Radiation Research

Zirconium phase transformations observed by “in-situ” XRD analysis

Vacuum ◽  
2012 ◽  
Vol 86 (6) ◽  
pp. 785-788 ◽  
Author(s):  
Jan Riha ◽  
Pavol Sutta ◽  
Andrej Vincze ◽  
Rostislav Medlin
Keyword(s):  
Phase Transformations ◽  
Xrd Analysis ◽  
In Situ Xrd

In Situ Optical Analysis of the Gas Phase during the Deposition of Silicon Carbide from Methyltrichlorosilane

1996 ◽  
Vol 143 (5) ◽  
pp. 1654-1661 ◽  
Author(s):  
M. Ganz ◽  
N. Dorval ◽  
M. Lefebvre ◽  
M. Péalat ◽  
F. Loumagne ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Gas Phase ◽  
Optical Analysis
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