Geometry:
Cylinder
Substrate:
Average
Category:
Porosity
Method:
Nitrogen 77 K
The calculation is similar to the above except that cylindrical geometry is assumed, and the film
thickness depends on pore size (see reference).
References:
Specifically, equations 20 and 21 in: J.C.P. Broekhoff and J.H. de Boer,
“The Surface Area in Intermediate Pores,” Proceedings of the Inter-
national Symposium on Surface Area Determination, D.H. Everett, R.H.
Ottwill, eds., U.K. (1969).
DFT M
ODEL
R
EFERENCES
The papers listed below provide additional information on DFT models:
1. “Determination of Pore Size Distribution from Density Functional Theoretic Models of
Adsorption and Condensation within Porous Solids,” J.P. Olivier and W.B. Conklin, Micro-
meritics Instrument Corp; presented at the International Symposium on the Effects of Sur-
face Heterogeneity in Adsorption and Catalysts on Solids, Kazimierz Dolny, Poland (July
1992).
2. “Classification of Adsorption Behavior: Simple Fluids in Pores of Slit-shaped Geometry,”
Perla B. Balbuena and Keith E. Gubbins,
Fluid Phase Equilibria
, 76, 21-35, Elsevier
Science Publishers, B.V., Amsterdam (1992).
3. “Modeling Physical Adsorption on Porous and Nonporous solids Using Density Functional
Theory,” J.P. Olivier,
Journal of Porous Materials
, 3, 9-17 (1995).
4. “The Determination of Surface Energetic Heterogeneity Using Model Isotherms Calculated
by Density Functional Theory,” J.P. Olivier; presented at the Fifth International Conference
on the Fundamentals of Adsorption, Pacific Grove, CA (1995).
DFT Model References
Gemini VII Operator Manual
239-42828-01 (Rev H ) — May 2021
B - 17
Summary of Contents for GEMINI VII
Page 1: ...OPERATOR MANUAL 239 42828 01 May 2021 Rev H GEMINI VII SURFACE AREA ANALYZER ...
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Page 127: ...T PLOT REPORT t Plot Report Gemini VII Operator Manual 239 42828 01 Rev H May 2021 6 35 ...
Page 128: ...6 About Reports VALIDATION REPORT 6 36 Gemini VII Operator Manual 239 42828 01 Rev H May 2021 ...
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