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Evaluating Pore Sizes in Mesoporous Materials: A Simplified Standard Adsorption Method and a Simplified Broekhoff−de Boer Method
Abstract
The diameters of primary mesopores in materials with well-defined cylindrical pores can be accurately determined by the 4 V / A method when the volume and surface area are determined by a standard adsorption method and 13.5 Å 2 is used as the molecular area of adsorbed nitrogen. A simple method for determining standard adsorption using the statistical thickness of the adsorbed gas layer defined by Frenkel−Halsey−Hill (FHH) theory is described. For materials in which the pores are not cylindrical or well-defined, a simplified Broekhoff−de Boer method can be used to determine pore dimensions. The use of Hill's approximation for the thickness of the adsorbed gas layer in the Broekhoff−de Boer method simplifies its use. The results of these methods on small pore MCM-41 materials, large pore SBA-15 materials, and spherical pore mesocellular foams are reported.
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Citations
Cites
Adsorption of Gases in Multimolecular Layers
Brunauer, S., Emmett, P. H., & Teller, E. (1938) · Journal of the American Chemical Society · doi:10.1021/ja01269a023 · Cited by 28,156
Cited by
Gas Adsorption Characterization of Ordered Organic−Inorganic Nanocomposite Materials
Kruk, M., & Jaroniec, M. (2001) · Chemistry of Materials · doi:10.1021/cm0101069 · Cited by 3,413
On the controllable soft-templating approach to mesoporous silicates
Wan, Y., & Zhao (2007) · Chemical Reviews · doi:10.1021/cr068020s · Cited by 2,371
Characterization of the porous structure of sba-15
Kruk, M., Jaroniec, M., Ko, C. H., & Ryoo, R. (2000) · Chemistry of Materials · doi:10.1021/cm000164e · Cited by 1,409
Li, Z., Xu, Z., Tan, X., Wang, H., Holt, C. M. B., Stephenson, T., Olsen, B. C., & Mitlin, D. (2013) · Energy & Environmental Science · doi:10.1039/c2ee23599d · Cited by 1,054
Development trends in porous adsorbents for carbon capture
Sreenivasulu, B., Sreedhar, I., Suresh, P., & Raghavan, K. V. (2015) · Environmental Science & Technology · doi:10.1021/acs.est.5b03149 · Cited by 127
Metadata
- Authors
- Lukens, Schmidt-Winkel, P., Zhao, D., Feng, J., & Stucky, G. D.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 1999-06-25
- Volume
- 15
- Issue
- 16
- Pages
- 5403-5409
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2082499728
- Cited by
- 471
- References
- 1
- FWCI
- 18.30
- Type
- journal article
- Language
- en
- Open access
- closed
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- The paper
- Lukens, Schmidt-Winkel, P., Zhao, D., Feng, J., & Stucky, G. D. (1999). Evaluating Pore Sizes in Mesoporous Materials: A Simplified Standard Adsorption Method and a Simplified Broekhoff−de Boer Method. Langmuir. https://doi.org/10.1021/la990209u
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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