The Thermal Analysis and Surface Area Analysis Service is used for the study of the behavior of materials when temperature changes under different conditions and atmospheres, and for studies of surface area and porosity. The Service allows for simultaneous thermogravimetric analysis (TGA- DSC/DTA), differential scanning calorimetry (DSC), as well as Brunauer–Emmett–Teller (BET) Surface Area Analysis.
Technicians
Roberta Ceravola
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Julio Fraile
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Scientists in charge
User's Commission
Thermal Analysis
- NETZSCH -STA 449 F1 Jupiter: Allows for simultaneous thermogravimetric analysis (TG) and differential scanning calorimetry/differential thermal analysis (DSC/DTA).
- Perkin Elmer DSC8500 LAB SYS (N5340501): A differential scanning calorimeter with DSC power compensation, equipped with a CRYOFILL (N534004) liquid N2
- Perkin Elmer DSC8000 (N5340511): A differential scanning calorimeter with DSC power compensation, equipped with Intercooler 2 Cooling Accessory (N5374099)
- Perkin Elmer Pyris 1 TGA Thermogravimetric Analyzer
BET Surface Area Analysis
- Micromeritics ASAP 2000 (N2): Accelerated Surface Area and Porosimetry System using nitrogen as adsorption/desorption gas.
- Micromeritics ASAP 2020 (N2, Ar, CO2): Accelerated Surface Area and Porosimetry System using either nitrogen, argon or carbon dioxide as adsorption/desorption gas.
TGA-DSC/DTA
The simultaneous TGA-DSC/DTA analyzer allows the measurement of weight and DSC (heat flow)/DTA (differential thermal analysis) signals as a function of temperature and time. It is used for monitoring chemical reactions, thermal stabilities, solvent evaporation and reduction and oxidation of materials under different gases among other studies. The sensitivity of the balance is 0.07 micrograms. The furnace can operate from room temperature to 1400oC. The analyzer may work in several atmospheres such as oxygen, air, argon and hydrogen (diluted at 5% in Ar), at ambient pressure and with using typical flow rates of 70 cm3/min.
DSC
The differential scanning calorimeter Perkin Elmer (power compensation) measures the energy absorbed and released when a sample is heated, frozen, or kept at constant temperature. Experiments can be made in the range of temperatures between 110 and 950 K. DSC is very useful to determine fusion or decomposition temperatures, phase transitions in crystals and amorphous solids, identification of polymorphs and also permits the identification of the molecular conformations as for example single polymer chain folding among others. With this equipment, very small amount of sample is needed (1-2 mg ) to have reliable results.
