In situ Raman and in situ XRD analysis of PdO reduction and Pd° oxidation supported on γ-Al2O3 catalyst under different atmospheres

2011 ◽  
Vol 13 (10) ◽  
pp. 4607 ◽  
Author(s):  
Alexandre Baylet ◽  
Patrice Marécot ◽  
Daniel Duprez ◽  
Paola Castellazzi ◽  
Gianpiero Groppi ◽  
...  
Keyword(s):  
Xrd Analysis ◽  
In Situ Xrd ◽  
In Situ Raman ◽  
Al2o3 Catalyst

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

scholarly journals Effect of Soil Solution pH during the Tetracycline Intercalation on the Structural Properties of a Dioctahedral Smectite: Microstructural Analysis

2019 ◽  
Vol 2019 ◽  
pp. 1-17
Author(s):  
Walid Oueslati
Keyword(s):  
Soil Solution ◽  
Structural Changes ◽  
Ph Value ◽  
Microstructural Analysis ◽  
Xrd Analysis ◽  
Deformation Bands ◽  
Solution Ph ◽  
Hydration Properties ◽  
In Situ Xrd

The aim of this work is to quantitatively characterize the structural response to a chemical disruption of saturated montmorillonite crystallites by organic molecules (tetracycline (TC)), derived from pharmaceutical waste. The chemical disturbance is performed by varying the surrounding soil solution pH. To show the effect of this chemical perturbation on the interlamellar space (IS) configuration and the hydration properties, an “in situ” XRD analysis, based on the modeling of the 00l reflections, is carried out. The “in situ” XRD analysis is performed by varying the relative humidity conditions (%RH). FTIR SEM and BET- (Brunauer-Emmett-Teller-) BJH (Barrett-Joyner-Halenda) analyses are used as complementary techniques to confirm the structural changes accompanying the intercalation process. Results showed a dependence between solution acid character and the TC adsorption mechanism. From pH values close to 7, the deprotonation of the TC molecule within IS is accelerated by an increasing %RH rate. IR spectroscopy shows that the structure is preserved versus pH value and only a shift of the water deformation bands ascribed to interlamellar water molecule abundance and TC conformation is observed. The surface morphology studied by SEM shows the increase in the surface porosity by increasing the pH value. BET-specific surface area and BJH pore size distribution (PSD) analyses confirm the SEM observations.

In situ XRD analysis of the oxide layers formed by oxidation at 743 K on Zircaloy 4 and Zr–1NbO

2000 ◽  
Vol 280 (3) ◽  
pp. 318-330 ◽  
Author(s):  
N. Pétigny ◽  
P. Barberis ◽  
C. Lemaignan ◽  
Ch. Valot ◽  
M. Lallemant
Keyword(s):  
Xrd Analysis ◽  
Oxide Layers ◽  
In Situ Xrd

In situ XRD analysis of Ni(Pt)/Si(100) reactions in low temperature regime ≤400°C

2003 ◽  
Vol 128 (9-10) ◽  
pp. 325-328 ◽  
Author(s):  
P.S. Lee ◽  
K.L. Pey ◽  
D. Mangelinck ◽  
J. Ding ◽  
L. Chan
Keyword(s):  
Low Temperature ◽  
Temperature Regime ◽  
Xrd Analysis ◽  
In Situ Xrd

scholarly journals Limestone calcination under calcium-looping conditions for CO2 capture and thermochemical energy storage in the presence of H2O: an in situ XRD analysis

2017 ◽  
Vol 19 (11) ◽  
pp. 7587-7596 ◽  
Author(s):  
Jose Manuel Valverde ◽  
Santiago Medina
Keyword(s):  
Crystal Structure ◽  
Energy Storage ◽  
Co2 Capture ◽  
Xrd Analysis ◽  
In Situ Xrd ◽  
Calcium Looping ◽  
Low Concentrations ◽  
Limestone Calcination

The presence of H2O at very low concentrations in the calciner significantly accelerates decomposition, while the resulting CaO crystal structure and reactivity are not modified.

In situ XRD analysis of dolomite calcination under CO2 in a humid environment

CrystEngComm ◽  
2020 ◽  
Vol 22 (39) ◽  
pp. 6502-6516 ◽  
Author(s):  
Santiago Medina-Carrasco ◽  
Jose Manuel Valverde
Keyword(s):  
Xrd Analysis ◽  
In Situ Xrd ◽  
Humid Environment

In situ XRD analysis on the calcination and decrepitation of natural dolomite under pure CO2 atmosphere and influence of humidity under conditions relevant for CO2 capture.

scholarly journals Thermal stability of AlCoCrCuFeNi high entropy alloy thin films studied by in-situ XRD analysis

2010 ◽  
Vol 204 (12-13) ◽  
pp. 1989-1992 ◽  
Author(s):  
V. Dolique ◽  
A.-L. Thomann ◽  
P. Brault ◽  
Y. Tessier ◽  
P. Gillon
Keyword(s):  
Thin Films ◽  
Thermal Stability ◽  
Xrd Analysis ◽  
High Entropy Alloy ◽  
High Entropy ◽  
In Situ Xrd ◽  
Thermal Stability Of

Design of a Low-Cost Electrochemical Cell for In Situ XRD Analysis of Electrode Materials

2014 ◽  
Vol 161 (5) ◽  
pp. A700-A703 ◽  
Author(s):  
Benjamin E. Wilson ◽  
William H. Smyrl ◽  
Andreas Stein
Keyword(s):  
Electrode Materials ◽  
Electrochemical Cell ◽  
Low Cost ◽  
Xrd Analysis ◽  
In Situ Xrd

scholarly journals D-83 in Situ XRD Analysis of (CfX)N Batteries: Signal Extraction by Multivariate Analysis

2007 ◽  
Vol 22 (2) ◽  
pp. 190-190
Author(s):  
M. A. Rodriguez ◽  
M. R. Keenan ◽  
G. Nagasubramanian
Keyword(s):  
Multivariate Analysis ◽  
Xrd Analysis ◽  
Signal Extraction ◽  
In Situ Xrd ◽  
D 83
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