On a Simple Nonisothermal Adsorption Experiment with Organic Vapors and an Inertial Microbalance To Study the Surface Properties of Hybrid (Organic/Inorganic) Porous Materials
✍ Scribed by Gustavo Larsen; Hugo S. Silva; Rosa Venturini de Silva
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 61 KB
- Volume
- 224
- Category
- Article
- ISSN
- 0021-9797
No coin nor oath required. For personal study only.
✦ Synopsis
A nonisothermal adsorption experiment using a controlled flow of cyclopentane in the 333-313 K range is used to simultaneously estimate the specific surface area and micropore volume of a hybrid (organic/inorganic) alcogel. For reference, the method is also applied to an all-inorganic material with a more rigid structure, namely, a high surface area SiO 2 -Al 2 O 3 . The proposed data analysis provides guidelines to determine whether adsorption data on a certain adsorbate/adsorbent system can be modeled effectively as a convolution of BET (meso-and macropore) and Dubinin-Radushkevitch (DR, micropore) contributions.