Identification of the Most Active Sites and Surface Water Species: A Comparative Study of CO and Methanol Oxidation Reactions on Core−Shell M@Pt (M = Ru, Au) Nanoparticles by in Situ IR Spectroscopy

2011 ◽  
Vol 115 (17) ◽  
pp. 8735-8743 ◽  
Author(s):  
De-Jun Chen ◽  
Augusta M. Hofstead-Duffy ◽  
In-Su Park ◽  
Dianne O. Atienza ◽  
Ceren Susut ◽  
...  
Keyword(s):  
Surface Water ◽  
Ir Spectroscopy ◽  
Active Sites ◽  
Au Nanoparticles ◽  
Core Shell ◽  
Oxidation Reactions ◽  
In Situ Ir ◽  
Water Species ◽  
In Situ Ir Spectroscopy

In Situ IR Spectroscopy for Following the Copolymerization of CO2and Epoxides

2014 ◽  
Vol 86 (9) ◽  
pp. 1627-1628
Author(s):  
K. Böhm ◽  
W. Leitner ◽  
T. E. Müller
Keyword(s):  
Ir Spectroscopy ◽  
In Situ Ir ◽  
In Situ Ir Spectroscopy

scholarly journals In Situ IR Spectroscopy of Mesoporous Silica Films for Monitoring Adsorption Processes and Trace Analysis

2018 ◽  
Vol 1 (12) ◽  
pp. 7083-7091 ◽  
Author(s):  
Bettina Baumgartner ◽  
Jakob Hayden ◽  
Andreas Schwaighofer ◽  
Bernhard Lendl
Keyword(s):  
Ir Spectroscopy ◽  
Mesoporous Silica ◽  
Trace Analysis ◽  
Silica Films ◽  
In Situ Ir ◽  
Adsorption Processes ◽  
In Situ Ir Spectroscopy

Monitoring an ionic liquid synthesis with in-situ IR-spectroscopy – The intricacy of solvent effects

2019 ◽  
Vol 368 ◽  
pp. 649-658 ◽  
Author(s):  
Andreas Ohligschläger ◽  
Christoph Gertig ◽  
Dario Coenen ◽  
Sebastian Brosch ◽  
Dzmitry Firaha ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ir Spectroscopy ◽  
Solvent Effects ◽  
In Situ Ir ◽  
In Situ Ir Spectroscopy

The influence of plasma of crown discharge and ozone on the rate of photocatalytic oxidation of acetone and benzene vapors

2019 ◽  
Vol 19 (5) ◽  
pp. 391-398
Author(s):  
E. A. Gusachenko ◽  
M. N. Lyulyukin ◽  
D. V. Kozlov
Keyword(s):  
Ir Spectroscopy ◽  
Oxidation Rate ◽  
Photocatalytic Oxidation ◽  
Discharge Plasma ◽  
Considerable Proportion ◽  
Gas Mixture ◽  
In Situ Ir ◽  
Uv Lamp ◽  
In Situ Ir Spectroscopy

The influence of negatively polar plasma of crown discharge on the rate of photocatalytic oxidation (PCO) of vapors of acetone and benzene was investigated by studying dynamics of changes in the composition of gas-air mixture in a 404 L reactor using in-situ IR spectroscopy. Titanium (Hombifine N) was used as the photocatalyst; it was lighted with a UV-lamp at the wavelength λ = 365 nm. The rate of the photocatalytic oxidation of the substrate vapor was compared to the oxidation rate in crown discharge plasma, to the rate of dark oxidation with ozone (side product of the discharge burning), to the rate of photocatalytic oxidation in the presence of ozone, as well as to the rate of the photocatalytic oxidation under medium treatment with the crown discharge plasma. The rate of oxidation of various substrates was shown to be much lower in individual plasma and in ozone-containing atmosphere than in photocatalytic oxidation but application of the crown discharge led to an increase in the rate of photocatalytic oxidation and in the rate of oxidation in ozone-containing atmosphere. Under the action of the discharge, ozone was not accumulated in considerable proportion in the gas mixture but after consumption of 80–90 % of the oxidized substrate. The order of acetone PCO with respect to ozone was determined. It was shown that the action of plasma allowed benzene PCO to be noticeably accelerated due to considerable depression of the photocatalyst deactivation compared to that during individual PCO of benzene.

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