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| 原子力显微镜× | BET比表面积× | |
|---|---|---|
| 领域 | 材料科学 | 材料科学 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1986 | 1938 |
| 提出者≠ | Gerd Binnig | Brunauer, Emmett, Teller |
| 类型≠ | Imaging technique | Measurement method |
| 开创性文献≠ | Binnig, G., Quate, C. F., & Gerber, C. (1986). Atomic force microscope. Physical Review Letters, 56(9), 930-933. DOI ↗ | 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 ↗ |
| 别名 | AFM, scanning probe microscopy, nanoindentation microscopy | BET analysis, nitrogen adsorption, surface area measurement |
| 相关 | 3 | 3 |
| 摘要≠ | Atomic Force Microscopy (AFM) is a scanning probe technique that measures nanoscale surface topography and mechanical properties by monitoring interactions between a sharp cantilever tip and a sample surface. Invented by Gerd Binnig in 1986 as an extension of scanning tunneling microscopy, AFM requires neither electrical conductivity nor vacuum operation, making it applicable to virtually any material. It provides three-dimensional topographic maps with sub-nanometer vertical resolution and lateral resolution approaching nanometers, along with simultaneous measurements of mechanical, electrical, and chemical properties. | 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. |
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