Influence of Metal Doping on the Lewis Acid Catalyzed Production of Butadiene from Ethanol Studied by using Modulated Operando Diffuse Reflectance Infrared Fourier Transform Spectroscopy and Mass Spectrometry

ChemCatChem ◽  
2017 ◽  
Vol 9 (18) ◽  
pp. 3572-3582 ◽  
Author(s):  
Philipp Müller ◽  
Shao-Chun Wang ◽  
Samuel P. Burt ◽  
Ive Hermans
Keyword(s):  
Mass Spectrometry ◽  
Fourier Transform ◽  
Lewis Acid ◽  
Diffuse Reflectance ◽  
Fourier Transform Spectroscopy ◽  
Metal Doping ◽  
Acid Catalyzed ◽  
Diffuse Reflectance Infrared

Detection of the Engine Anti-Knock Additive Methylcyclopentadienyl Manganese Tricarbonyl (MMT) from Unleaded Gasoline in Soil by Diffuse Reflectance Infrared Fourier Transform Spectroscopy and Mass Spectrometry

1995 ◽  
Vol 49 (4) ◽  
pp. 482-485 ◽  
Author(s):  
Andrew J. Vreugdenhil ◽  
Ian S. Butler
Keyword(s):  
Mass Spectrometry ◽  
Fourier Transform ◽  
Diffuse Reflectance ◽  
Fourier Transform Spectroscopy ◽  
Soil Samples ◽  
Fuel Additive ◽  
Unleaded Gasoline ◽  
Methylcyclopentadienyl Manganese Tricarbonyl ◽  
Diffuse Reflectance Infrared ◽  
Manganese Tricarbonyl

Soil samples were washed with dilute solutions of the toxic anti-knock fuel additive methylcyclopentadienyl manganese tricarbonyl (MMT) in hexanes and commercial unleaded gasoline. Diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) was then used to detect the v(CO) modes of MMT, and subsequently 13CO-enriched MMT, in the soil samples. The presence of MMT in the soils was further confirmed by mass spectrometry. Concentrations corresponding to ∼10 ppm Mn in soil could be detected by DRIFTS of the dry samples, and, most interestingly, there was no evidence of significant MMT decomposition over a period of eight months. Apparently, MMT is stabilized by physisorption onto the soils. In the absence of such stabilization, however, MMT undergoes photolytic and thermal decomposition in a matter of minutes. These results suggest the possibility of longer-term environmental problems associated with gasoline spills containing MMT than was previously suspected.

ANALYTICAL APPLICATIONS OF DIFFUSE REFLECTANCE INFRARED FOURIER TRANSFORM SPECTROSCOPY

1982 ◽  
pp. 299-309 ◽  
Author(s):  
Peter R. Griffiths ◽  
S. Agyare Yeboah ◽  
Issam M. Hamadeh ◽  
Pamela J. Duff ◽  
Wang-Jih Yang ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Diffuse Reflectance ◽  
Fourier Transform Spectroscopy ◽  
Analytical Applications ◽  
Diffuse Reflectance Infrared
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