In situ studies of the dehydration of zeolitic catalysts by time-resolved energy-dispersive x-ray absorption spectroscopy

1990 ◽  
Vol 94 (17) ◽  
pp. 6517-6519 ◽  
Author(s):  
J. W. Couves ◽  
J. M. Thomas ◽  
C. R. A. Catlow ◽  
G. N. Greaves ◽  
G. Baker ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Energy Dispersive ◽  
Time Resolved ◽  
X Ray ◽  
In Situ Studies ◽  
X Ray Absorption

In situ time resolved studies of hydride and deuteride formation in Pd/C electrodes via energy dispersive X-ray absorption spectroscopy

2005 ◽  
Vol 7 (2) ◽  
pp. 366-372 ◽  
Author(s):  
A. Rose ◽  
O. South ◽  
I. Harvey ◽  
S. Diaz-Moreno ◽  
J. R. Owen ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Energy Dispersive ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Absorption

scholarly journals Tandem X-ray absorption spectroscopy and scattering for in situ time-resolved monitoring of gold nanoparticle mechanosynthesis

2020 ◽  
Vol 56 (71) ◽  
pp. 10329-10332 ◽  
Author(s):  
Paulo F. M. de Oliveira ◽  
Adam A. L. Michalchuk ◽  
Ana Guilherme Buzanich ◽  
Ralf Bienert ◽  
Roberto M. Torresi ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Absorption Spectroscopy ◽  
Mechanochemical Synthesis ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Absorption

A new tandem approach combines XRD and XANES for time-resolved in situ monitoring of the mechanochemical synthesis of gold nanoparticles.

In Situ X-ray Absorption Spectroscopy/Energy-Dispersive X-ray Diffraction Studies on the Hydrothermal Formation of Bi2W1-xMoxO6 Nanomaterials

2012 ◽  
Vol 2012 (5) ◽  
pp. 783-789 ◽  
Author(s):  
Ying Zhou ◽  
Elena Antonova ◽  
Yuanhua Lin ◽  
Jan-Dierk Grunwaldt ◽  
Wolfgang Bensch ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Energy Dispersive ◽  
X Ray Diffraction ◽  
X Ray ◽  
X Ray Absorption

X-Ray Absorption Spectroscopy as an in-situ Tool in Materials Science

1997 ◽  
Vol 502 ◽  
Author(s):  
T. Ressler ◽  
Joe Wong ◽  
W. Metz
Keyword(s):  
Absorption Spectroscopy ◽  
Materials Science ◽  
Ex Situ ◽  
Structural Studies ◽  
Time Resolved ◽  
X Ray ◽  
Complementary Techniques ◽  
X Ray Absorption ◽  
Established Technique

ABSTRACTIn addition to being an established technique for ex-situ structural studies, x-ray absorption spectroscopy (XAS) has recently been realized to be a powerful tool for in-situ time-resolved investigations in materials science. This paper describes two complementary techniques: quick-scanning EXAFS (QEXAFS) and energy-dispersive XAS (DXAS) which offer time resolution in the seconds and milliseconds range, respectively. Formation of a heterogeneous catalyst from a solid-state reaction of a precursor is presented as an example of a time-resolved XAS application.

scholarly journals Expanding the Mechanochemical Toolbox: Combining X-Ray Absorption Spectroscopy and Scattering for in Situ Time-Resolved Monitoring of Gold Nanoparticle Mechanosynthesis

2020 ◽  
Author(s):  
Paulo F M de Oliveira ◽  
Adam Michalchuk ◽  
Ana de Oliveira Guilherme Buzanich ◽  
Ralf Bienert ◽  
Roberto M. Torresi ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Electronic Materials ◽  
Early Stage ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
Subsequent Formation ◽  
X Ray ◽  
Detection Capabilities ◽  
X Ray Absorption

<div>The development of time-resolved in situ approaches for monitoring mechanochemical</div><div>transformations has revolutionized the field of mechanochemistry. Currently, the established in</div><div>situ approaches greatly limit the scope of investigations that are possible. Here we develop a new</div><div>approach to simultaneously follow the evolution of bulk atomic and electronic structure during a</div><div>mechanochemical synthesis. This is achieved by coupling two complementary synchrotron-based</div><div>X-ray methods: X-ray absorption spectroscopy and X-ray diffraction. We apply this method to</div><div>investigate the bottom-up mechanosynthesis of technologically important Au nanoparticles in the</div><div>presence of three different reducing agents. Moreover, we demonstrate how X-ray absorption</div><div>spectroscopy offers unprecedented insight into the early stage generation of growth species (e.g.</div><div>monomers and clusters), which lead to the subsequent formation of nanoparticles. These</div><div>processes are beyond the detection capabilities of diffraction methods. The approach is general,</div><div>and not limited to monitoring NP mechanosynthesis. This combined X-ray approach paves the</div><div>way to new directions in mechanochemical research of advanced electronic materials.</div>

scholarly journals Droplet-based in situ X-ray absorption spectroscopy cell for studying crystallization processes at the tender X-ray energy range

RSC Advances ◽  
2019 ◽  
Vol 9 (58) ◽  
pp. 34004-34010 ◽  
Author(s):  
Jacinta Xto ◽  
Reto Wetter ◽  
Camelia N. Borca ◽  
Christophe Frieh ◽  
Jeroen A. van Bokhoven ◽  
...  
Keyword(s):  
Energy Range ◽  
Absorption Spectroscopy ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Absorption

We introduce a new in situ cell for time-resolved reactions involving aerosols/droplets using tender X-ray absorption spectroscopy and related methods.

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