NiO/CeO2-Sm2O3 nanocomposites for partial oxidation of methane: in-situ experiments by dispersive X-ray absorption spectroscopy

2021 ◽  
pp. 118357
Author(s):  
Lucía M. Toscani ◽  
Marina S. Bellora ◽  
Cristián Huck-Iriart ◽  
Analía L. Soldati ◽  
Joaquín Sacanell ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Partial Oxidation ◽  
Partial Oxidation Of Methane ◽  
X Ray ◽  
Oxidation Of Methane ◽  
In Situ Experiments ◽  
X Ray Absorption

scholarly journals In situ X-ray absorption spectroscopy study of CuO–NiO/CeO2–ZrO2 oxides: redox characterization and its effect in catalytic performance for partial oxidation of methane

RSC Advances ◽  
2018 ◽  
Vol 8 (22) ◽  
pp. 12190-12203 ◽  
Author(s):  
Lucía M. Toscani ◽  
M. Genoveva Zimicz ◽  
Tereza S. Martins ◽  
Diego G. Lamas ◽  
Susana A. Larrondo
Keyword(s):  
Absorption Spectroscopy ◽  
Partial Oxidation ◽  
Catalytic Performance ◽  
Partial Oxidation Of Methane ◽  
Spectroscopy Study ◽  
X Ray ◽  
Oxidation Of Methane ◽  
X Ray Absorption

In situ X-Ray Absorption (XAS) experiments in reducing atmospheres (H2 and CH4 : O2) uncovered Ce, Ni and Cu redox interplay during catalytic experiments.

Application of In Situ X-ray Absorption Spectroscopy to Study Dilute Chromium Ions in a Molten Chloride Salt

2019 ◽  
Author(s):  
Jisue Moon ◽  
Carter Abney ◽  
Dmitriy Dolzhnikov ◽  
James M. Kurley ◽  
Kevin A. Beyer ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Local Structure ◽  
Chloride Salt ◽  
X Ray ◽  
Molten Chloride ◽  
Stable Species ◽  
Higher Temperature ◽  
Cr Concentration ◽  
X Ray Absorption

The local structure of dilute CrCl<sub>3</sub> in a molten MgCl<sub>2</sub>:KCl salt was investigated by <i>in situ</i> x-ray absorption spectroscopy (XAS) at temperatures from room temperature to 800<sup>o</sup>C. This constitutes the first experiment where dilute Cr speciation is explored in a molten chloride salt, ostensibly due to the compounding challenges arising from a low Cr concentration in a matrix of heavy absorbers at extreme temperatures. CrCl<sub>3</sub> was confirmed to be the stable species between 200 and 500<sup>o</sup>C, while mobility of metal ions at higher temperature (>700<sup>o</sup>C) prevented confirmation of the local structure.

Revealing the structural transformation of rutile RuO2via in situ X-ray absorption spectroscopy during the oxygen evolution reaction

2019 ◽  
Vol 48 (21) ◽  
pp. 7122-7129 ◽  
Author(s):  
Chia-Jui Chang ◽  
You-Chiuan Chu ◽  
Hao-Yu Yan ◽  
Yen-Fa Liao ◽  
Hao Ming Chen
Keyword(s):  
Oxygen Evolution ◽  
Structural Transformation ◽  
Absorption Spectroscopy ◽  
Oxygen Evolution Reaction ◽  
The State ◽  
X Ray ◽  
Alkaline Conditions ◽  
X Ray Absorption ◽  
State Of Art

The state-of-art RuO2 catalyst for the oxygen evolution reaction (OER) is measured by using in situ X-ray absorption spectroscopy (XAS) to elucidate the structural transformation during catalyzing the reaction in acidic and alkaline conditions.

Simple flow through reaction cells for in situ transmission and fluorescence x-ray-absorption spectroscopy of heterogeneous catalysts

2006 ◽  
Vol 77 (2) ◽  
pp. 023105 ◽  
Author(s):  
Simon R. Bare ◽  
George E. Mickelson ◽  
Frank S. Modica ◽  
Andrzej Z. Ringwelski ◽  
N. Yang
Keyword(s):  
Absorption Spectroscopy ◽  
Heterogeneous Catalysts ◽  
X Ray ◽  
Flow Through ◽  
X Ray Absorption ◽  
Simple Flow

scholarly journals Unraveling the Structure of Mn-Promoted Co/TiO2 Fischer-Tropsch Catalysts by In Situ X-Ray Absorption Spectroscopy

2007 ◽  
Author(s):  
Didier Grandjean ◽  
Fernando Morales ◽  
Ad Mens ◽  
Frank M. F. de Groot ◽  
Bert M. Weckhuysen
Keyword(s):  
Absorption Spectroscopy ◽  
Fischer Tropsch ◽  
X Ray ◽  
X Ray Absorption
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