In situ monitoring of aerosols by Raman spectroscopy – particle polymorphism and gas-phase temperature

2018 ◽  
Author(s):  
L. A. Bahr ◽  
S. Will ◽  
A. S. Braeuer
Keyword(s):  
Raman Spectroscopy ◽  
Gas Phase ◽  
In Situ Monitoring ◽  
Phase Temperature

Zeolite H-ZSM-5: A Microporous Proton Conductor for the in situ Monitoring of DeNOx-SCR

2011 ◽  
Vol 1330 ◽  
Author(s):  
Thomas Simons ◽  
Ulrich Simon
Keyword(s):  
Gas Phase ◽  
Thermal Activation ◽  
Catalytic Reduction ◽  
Proton Conductor ◽  
In Situ Monitoring ◽  
Temperature Dependent ◽  
Sensor Material ◽  
Dependent Measurement ◽  
Phase Temperature

ABSTRACTImpedance spectroscopy was applied on zeolite H-ZSM 5 as a proton conducting NH3 sensor material and DeNOx-SCR (selective catalytic reduction of NOx with NH3) catalysts at the same time under SCR conditions. We show that in situ monitoring of the NH3 conversion with NOx becomes feasible when the zeolite is loaded with NH3 first and NOx is applied afterwards to the gas phase. Temperature dependent measurements allow discriminating NH3 desorption from catalytic conversion and time dependent measurement give first hints on the thermal activation of the conversion.

Coupling Raman spectroscopy and drop tensiometry for in situ monitoring of radical polymerization in a single monomer droplet

2018 ◽  
Vol 49 (12) ◽  
pp. 2046-2049 ◽  
Author(s):  
Elise Dropsit ◽  
Jacques Desbrières ◽  
David Chapron ◽  
Sandrine Hoppe ◽  
Alain Durand ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Radical Polymerization ◽  
In Situ Monitoring ◽  
Monomer Droplet

In situ monitoring of NiO–Al2O3 nanoparticles synthesis by thermo-Raman spectroscopy

2010 ◽  
Vol 119 (1-2) ◽  
pp. 86-92 ◽  
Author(s):  
Anil Vithal Ghule ◽  
Kalyani Ghule ◽  
Tushar Punde ◽  
Jen-Yu Liu ◽  
Shin-Hwa Tzing ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
In Situ Monitoring ◽  
Al2o3 Nanoparticles ◽  
Nanoparticles Synthesis
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