Steam reforming of methanol over oxide decorated nanoporous gold catalysts: a combined in situ FTIR and flow reactor study

2017 ◽  
Vol 19 (13) ◽  
pp. 8880-8888 ◽  
Author(s):  
J. Shi ◽  
C. Mahr ◽  
M. M. Murshed ◽  
T. M. Gesing ◽  
A. Rosenauer ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Steam Reforming ◽  
Flow Reactor ◽  
Gold Catalysts ◽  
Renewable Resource ◽  
Nanoporous Gold ◽  
In Situ Ftir ◽  
Steam Reforming Of Methanol

Methanol as a green and renewable resource can be used to generate hydrogen by reforming, i.e., its catalytic oxidation with water.

scholarly journals Steam reforming of methanol on PdZn near-surface alloys on Pd(111) and Pd foil studied by in-situ XPS, LEIS and PM-IRAS

2010 ◽  
Vol 276 (1) ◽  
pp. 101-113 ◽  
Author(s):  
Christoph Rameshan ◽  
Christian Weilach ◽  
Werner Stadlmayr ◽  
Simon Penner ◽  
Harald Lorenz ◽  
...  
Keyword(s):  
Steam Reforming ◽  
Surface Alloys ◽  
Near Surface ◽  
Steam Reforming Of Methanol ◽  
In Situ Xps

scholarly journals Acrylamide precipitation polymerization in a continuous flow reactor: an in situ FTIR study reveals kinetics

2020 ◽  
Author(s):  
Pascal Fandrich ◽  
Lars Wiehemeier ◽  
Maxim Dirksen ◽  
Oliver Wrede ◽  
Tilman Kottke ◽  
...  
Keyword(s):  
Continuous Flow ◽  
Flow Reactor ◽  
Monomer Conversion ◽  
Precipitation Polymerization ◽  
Correlation Spectroscopy ◽  
In Situ Monitoring ◽  
In Situ Ftir ◽  
Absorption Bands ◽  
Continuous Flow Reactor

AbstractIn this work, we present a combination of a continuous flow reactor with in situ monitoring of the monomer conversion in a precipitation polymerization. The flow reactor is equipped with a preheating area for the synthesis of thermoresponsive microgels, based on N-isopropylacrylamide (NIPAM). The reaction progress is monitored with in situ FTIR spectroscopy. The monomer conversion at defined residence times is determined from absorbance spectra of the reaction solutions by linear combination with reference spectra of the stock solution and the purified microgel. The reconstruction of the spectra appears to be in good agreement with experimental data in the range of 1710 to 1530 cm− 1, in which prominent absorption bands are used as probes for the monomer and the polymer. With increasing residence time, we observed a decrease in intensity of the ν(C=C) vibration, originating from the monomer, while the ν(C=O) vibration is shifted to higher frequencies by polymerization. Differences between the determined inline conversion kinetics and offline growth kinetics, determined by photon correlation spectroscopy (PCS), are discussed in terms of diffusion and point to a crucial role of mixing in precipitation polymerizations.

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