Ambient-Pressure Soft X-ray Absorption Spectroscopy of a Catalyst Surface in Action: Closing the Pressure Gap in the Selectiven-Butane Oxidation over Vanadyl Pyrophosphate

2014 ◽  
Vol 118 (35) ◽  
pp. 20405-20412 ◽  
Author(s):  
Christian Heine ◽  
Michael Hävecker ◽  
Eugen Stotz ◽  
Frank Rosowski ◽  
Axel Knop-Gericke ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Catalyst Surface ◽  
Ambient Pressure ◽  
Butane Oxidation ◽  
Vanadyl Pyrophosphate ◽  
X Ray ◽  
Pressure Gap ◽  
X Ray Absorption

Study of Gaseous Interactions on Co3O4 Thin Film Coatings by Ambient Pressure Soft X-ray Absorption Spectroscopy

2019 ◽  
Vol 123 (40) ◽  
pp. 24511-24519 ◽  
Author(s):  
Raju Edla ◽  
Luca Braglia ◽  
Valentina Bonanni ◽  
Antonio Miotello ◽  
Giorgio Rossi ◽  
...  
Keyword(s):  
Thin Film ◽  
Absorption Spectroscopy ◽  
Ambient Pressure ◽  
X Ray ◽  
Film Coatings ◽  
Thin Film Coatings ◽  
X Ray Absorption

Opposite Surface and Bulk Solvatochromic Effects in a Molecular Spin-Crossover Compound Revealed by Ambient Pressure X-ray Absorption Spectroscopy

Langmuir ◽  
2018 ◽  
Vol 34 (12) ◽  
pp. 3604-3609 ◽  
Author(s):  
Francesco Borgatti ◽  
Piero Torelli ◽  
Marco Brucale ◽  
Denis Gentili ◽  
Giancarlo Panaccione ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Spin Crossover ◽  
Ambient Pressure ◽  
X Ray ◽  
Opposite Surface ◽  
Molecular Spin ◽  
X Ray Absorption

Single-Site Copper by Incorporation in Ambient Pressure Dried Silica Aerogel and Xerogel Systems: An X-ray Absorption Spectroscopy Study

2011 ◽  
Vol 115 (39) ◽  
pp. 19260-19268 ◽  
Author(s):  
Tina Kristiansen ◽  
Karina Mathisen ◽  
Mari-Ann Einarsrud ◽  
Morten Bjørgen ◽  
David G. Nicholson
Keyword(s):  
Absorption Spectroscopy ◽  
Silica Aerogel ◽  
Ambient Pressure ◽  
Single Site ◽  
Spectroscopy Study ◽  
X Ray ◽  
X Ray Absorption

Operando X-ray absorption spectroscopy study of the Fischer–Tropsch reaction with a Co catalyst

2019 ◽  
Vol 26 (1) ◽  
pp. 137-144 ◽  
Author(s):  
Chandrani Nayak ◽  
Preeti Jain ◽  
C. P. Vinod ◽  
S. N. Jha ◽  
D. Bhattacharyya
Keyword(s):  
Absorption Spectroscopy ◽  
Catalytic Reaction ◽  
Structural Changes ◽  
Ambient Pressure ◽  
Metallic Phase ◽  
Fischer Tropsch ◽  
Co Catalyst ◽  
X Ray ◽  
Different Temperatures ◽  
X Ray Absorption

This article describes the setting up of a facility on the energy-scanning EXAFS beamline (BL-09) at RRCAT, Indore, India, for operando studies of structure–activity correlation during a catalytic reaction. The setup was tested by operando X-ray absorption spectroscopy (XAS) studies performed on a Co-based catalyst during the Fischer–Tropsch reaction to obtain information regarding structural changes in the catalyst during the reaction. Simultaneous gas chromatography (GC) measurements during the reaction facilitate monitoring of the product gases, which in turn gives information regarding the activity of the catalyst. The combination of XAS and GC techniques was used to correlate the structural changes with the activity of the catalyst at different reaction temperatures. The oxide catalyst was reduced to the metallic phase by heating at 400°C for 5 h under H2 at ambient pressure and subsequently the catalytic reaction was studied at four different temperatures of 240, 260, 280 and 320°C. The catalyst was studied for 10 h at 320°C and an attempt has been made to understand the process of its deactivation from the XANES and EXAFS results.

scholarly journals A reaction cell for ambient pressure soft x-ray absorption spectroscopy

2018 ◽  
Vol 89 (5) ◽  
pp. 054101 ◽  
Author(s):  
C. Castán-Guerrero ◽  
D. Krizmancic ◽  
V. Bonanni ◽  
R. Edla ◽  
A. Deluisa ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Ambient Pressure ◽  
Reaction Cell ◽  
X Ray ◽  
X Ray Absorption

scholarly journals Understanding Solid–Gas Reaction Mechanisms by Operando Soft X-Ray Absorption Spectroscopy at Ambient Pressure

2020 ◽  
Vol 124 (26) ◽  
pp. 14202-14212 ◽  
Author(s):  
Luca Braglia ◽  
Martina Fracchia ◽  
Paolo Ghigna ◽  
Alessandro Minguzzi ◽  
Daniela Meroni ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Reaction Mechanisms ◽  
Ambient Pressure ◽  
X Ray ◽  
X Ray Absorption
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