In situhigh pressure study of an elastic crystal by FTIR spectroscopy

CrystEngComm ◽  
2017 ◽  
Vol 19 (47) ◽  
pp. 7083-7087 ◽  
Author(s):  
Manish Kumar Mishra ◽  
Pallavi Ghalsasi ◽  
M. N. Deo ◽  
Himal Bhatt ◽  
Himanshu K. Poswal ◽  
...  
Keyword(s):  
High Pressure ◽  
Ftir Spectroscopy ◽  
Structural Changes ◽  
Ftir Study

Anin situhigh pressure-FTIR study on a 2,3-dichlorobenzylidine-4-bromoaniline elastic crystal shows significant structural changes at high pressure which revert back to the ambient structure on decompression.

scholarly journals In situ ATR-FTIR study of H2O and D2O adsorption on TiO2 under UV irradiation

2015 ◽  
Vol 17 (35) ◽  
pp. 22940-22946 ◽  
Author(s):  
Hamza Belhadj ◽  
Amer Hakki ◽  
Peter K. J. Robertson ◽  
Detlef W. Bahnemann
Keyword(s):  
Ftir Spectroscopy ◽  
Uv Irradiation ◽  
Deuterium Oxide ◽  
Ftir Study ◽  
Adsorption Of Water

The adsorption of water and deuterium oxide on TiO2 surfaces was investigated in the dark as well as under UV(A) irradiation using in situ ATR-FTIR spectroscopy under oxygen and oxygen free conditions.

scholarly journals High-pressure-induced structural changes, amorphization and molecule penetration in MFI microporous materials: a review

2014 ◽  
Vol 70 (3) ◽  
pp. 444-451 ◽  
Author(s):  
Giovanna Vezzalini ◽  
Rossella Arletti ◽  
Simona Quartieri
Keyword(s):  
High Pressure ◽  
Comparative Study ◽  
Structural Changes ◽  
Microporous Materials ◽  
Deformation Mechanisms ◽  
Silica Phase ◽  
Pressure Behavior ◽  
Framework Composition

This is a comparative study on the high-pressure behavior of microporous materials with an MFI framework type (i.e.natural mutinaite, ZSM-5 and the all-silica phase silicalite-1), based onin-situexperiments in which penetrating and non-penetrating pressure-transmitting media were used. Different pressure-induced phenomena and deformation mechanisms (e.g.pressure-induced over-hydration, pressure-induced amorphization) are discussed. The influence of framework and extra-framework composition and of the presence of silanol defects on the response to the high pressure of MFI-type zeolites is discussed.

An in situ high pressure FTIR study on molecular interactions of ketones, esters, and amides with dense phase carbon dioxide

2008 ◽  
Vol 46 (2) ◽  
pp. 197-205 ◽  
Author(s):  
Y. Akiyama ◽  
S. Fujita ◽  
H. Senboku ◽  
C.M. Rayner ◽  
S.A. Brough ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Molecular Interactions ◽  
Dense Phase ◽  
Ftir Study

In situ FTIR study of CO–H2reactions over RH/TiO2catalysts at high pressure and temperature

1994 ◽  
Vol 90 (24) ◽  
pp. 3699-3709 ◽  
Author(s):  
John A. Chudek ◽  
Mandy W. McQuire ◽  
Glen W. McQuire ◽  
Colin H. Rochester
Keyword(s):  
High Pressure ◽  
In Situ Ftir ◽  
High Pressure And Temperature ◽  
Ftir Study

scholarly journals Development of synchrotron X-ray micro-tomography under extreme conditions of pressure and temperature

2017 ◽  
Vol 24 (1) ◽  
pp. 240-247 ◽  
Author(s):  
M. Álvarez-Murga ◽  
J. P. Perrillat ◽  
Y. Le Godec ◽  
F. Bergame ◽  
J. Philippe ◽  
...  
Keyword(s):  
High Pressure ◽  
Structural Changes ◽  
Three Dimensional ◽  
Crystallographic Structure ◽  
Three Dimensional Imaging ◽  
X Ray ◽  
Wide Range ◽  
Micro Tomography ◽  
Non Destructive

X-ray tomography is a non-destructive three-dimensional imaging/microanalysis technique selective to a wide range of properties such as density, chemical composition, chemical states and crystallographic structure with extremely high sensitivity and spatial resolution. Here the development of in situ high-pressure high-temperature micro-tomography using a rotating module for the Paris–Edinburgh cell combined with synchrotron radiation is described. By rotating the sample chamber by 360°, the limited angular aperture of ordinary high-pressure cells is surmounted. Such a non-destructive high-resolution probe provides three-dimensional insight on the morphological and structural evolution of crystalline as well as amorphous phases during high pressure and temperature treatment. To demonstrate the potentials of this new experimental technique the compression behavior of a basalt glass is investigated by X-ray absorption tomography, and diffraction/scattering tomography imaging of the structural changes during the polymerization of C60 molecules under pressure is performed. Small size and weight of the loading frame and rotating module means that this apparatus is portable, and can be readily installed on most synchrotron facilities to take advantage of the diversity of three-dimensional imaging techniques available at beamlines. This experimental breakthrough should open new ways for in situ imaging of materials under extreme pressure–temperature–stress conditions, impacting diverse areas in physics, chemistry, geology or materials sciences.

In situ FTIR study of CO/H2 reactions over Rh/SiO2 catalysts at high pressure and temperature

1991 ◽  
Vol 9 (1-2) ◽  
pp. 23-30 ◽  
Author(s):  
James A. Anderson ◽  
Mandy W. McQuire ◽  
Colin H. Rochester ◽  
Terry Sweeney
Keyword(s):  
High Pressure ◽  
In Situ Ftir ◽  
High Pressure And Temperature ◽  
Ftir Study

In situ high pressure study of ZIF-8 by FTIR spectroscopy

2011 ◽  
Vol 47 (47) ◽  
pp. 12694 ◽  
Author(s):  
Yue Hu ◽  
Hossein Kazemian ◽  
Sohrab Rohani ◽  
Yining Huang ◽  
Yang Song
Keyword(s):  
High Pressure ◽  
Ftir Spectroscopy ◽  
High Pressure Study
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