scholarly journals The Investigation of Transformations of Organosilicon Derivatives of Cyanamide and Urea by Methods of Differential-Thermal Analysis and Mass-Spectrometry

2016 ◽  
Vol 16 (3) ◽  
pp. 60-66
Author(s):  
A. Gordetsov ◽  
◽  
S. Zimina ◽  
E. Moseeva
Keyword(s):  
Mass Spectrometry ◽  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Derivatives Of

Zeolites Fit For A Crown: Probing Host-Guest Interactions with Thermogravimetric Methods

2018 ◽  
Author(s):  
Asel Sartbaeva ◽  
Paul R. Raithby ◽  
Remi Castaing ◽  
Antony Nearchou
Keyword(s):  
Mass Spectrometry ◽  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Petrochemical Industry ◽  
Rational Use ◽  
New Methodologies ◽  
First Time ◽  
Kinetics Of

Through a combination of thermogravimetry, mass spectrometry and differential thermal analysis, we demonstrate for the first time that all four zeolites show experimental differences in their host-guest interactions with 18C6. In addition, we have estimated the kinetics of 18C6 decomposition, which is a technique that has not been applied to zeolites previously. Using these findings as a toolkit, a more rational use of OSDAs can be utilised to prepare designer zeolites. Furthermore, the new methodologies presented herein can be applied to current zeolites, such as MFI-type zeolites used in the petrochemical industry.

Nanopowders of Metallic Oxides Prepared by the Hydrolytic Route with Starch Stabilization and Biological Abetment

2006 ◽  
Vol 6 (1) ◽  
pp. 254-257 ◽  
Author(s):  
Emanuela Callone ◽  
Giovanni Carturan ◽  
Adriana Sicurelli
Keyword(s):  
Electron Microscopy ◽  
Mass Spectrometry ◽  
Thermal Analysis ◽  
Transmission Electron Microscopy ◽  
Differential Thermal Analysis ◽  
Specific Surface ◽  
Evidence Based ◽  
X Ray ◽  
Metallic Oxides ◽  
Transmission Electron

Sn, Sn–Sb, Ti, Zr, Fe, Ce and In oxides are prepared as nanometric powders by the hydrolytic route, starting from their ordinary salts or alkoxides, in the presence of 5% w/v starch as a non-ionic stabilizer of crystallization nuclei versus coalescence and flocculation. The starch can be degraded by α-amylase to soluble glucosidic oligomers, which may further be degraded by yeast to CO2 and ethanol. The nanoparticle features of prepared oxides result from experimental evidence based on X-ray diffractometry, transmission electron microscopy, differential thermal analysis/thermogravimetry coupled to mass spectrometry, specific surface area and porosity of samples obtained by curing in the 80–600 °C interval.

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