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| Powierzchnia właściwa BET× | Analiza Termograwimetryczna× | |
|---|---|---|
| Dziedzina | Inżynieria materiałowa | Inżynieria materiałowa |
| Rodzina | Process / pipeline | Process / pipeline |
| Rok powstania≠ | 1938 | 1960s |
| Twórca≠ | Brunauer, Emmett, Teller | William W. Wendlandt |
| Typ≠ | Measurement method | Characterization method |
| Źródło pierwotne≠ | Brunauer, S., Emmett, P. H., & Teller, E. (1938). Adsorption of gases in multimolecular layers. Journal of the American Chemical Society, 60(2), 309-319. DOI ↗ | Wendlandt, W. W. (1986). Thermal Analysis (3rd ed.). John Wiley & Sons. link ↗ |
| Inne nazwy | BET analysis, nitrogen adsorption, surface area measurement | TGA, thermal gravimetry, thermogravimetry |
| Pokrewne | 3 | 3 |
| Podsumowanie≠ | Brunauer-Emmett-Teller (BET) Surface Area Analysis is a technique for measuring the specific surface area of solids by analyzing their nitrogen adsorption isotherms. Developed by Brunauer, Emmett, and Teller in 1938, BET theory extends monolayer adsorption (Langmuir) to multilayer adsorption, enabling quantification of surface area of porous and powdered materials. It is the industry standard for characterizing catalysts, adsorbents, pharmaceuticals, and porous materials, providing critical data for performance prediction and quality control. | Thermogravimetric Analysis (TGA) is a thermal characterization technique that continuously measures mass loss or gain of a material as a function of temperature (or time at constant temperature). Developed systematically by William Wendlandt and colleagues in the 1960s, TGA identifies thermal transitions (evaporation, decomposition, oxidation, reduction) and quantifies composition of polymers, pharmaceuticals, ceramics, and other materials. The derivative signal (DTG) highlights transition temperatures. When combined with gas analysis (MS, FTIR), decomposition products are identified. |
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