Please use this identifier to cite or link to this item:
https://olympias.lib.uoi.gr/jspui/handle/123456789/8019Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Pomonis, P. J. | en |
| dc.contributor.author | Tsaousi, E. T. | en |
| dc.date.accessioned | 2015-11-24T16:38:14Z | - |
| dc.date.available | 2015-11-24T16:38:14Z | - |
| dc.identifier.issn | 0743-7463 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/8019 | - |
| dc.rights | Default Licence | - |
| dc.subject | surface fractal dimensions | en |
| dc.subject | nitrogen adsorption | en |
| dc.subject | isotherms | en |
| dc.subject | microporosity | en |
| dc.subject | carbon | en |
| dc.subject | films | en |
| dc.subject | scattering | en |
| dc.subject | particles | en |
| dc.subject | roughness | en |
| dc.subject | solids | en |
| dc.title | Frenkel-Halsey-Hill Equation, Dimensionality of Adsorption, and Pore Anisotropy | en |
| heal.type | journalArticle | - |
| heal.type.en | Journal article | en |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.identifier.primary | Doi 10.1021/La901121c | - |
| heal.identifier.secondary | <Go to ISI>://000269197500051 | - |
| heal.identifier.secondary | http://pubs.acs.org/doi/pdfplus/10.1021/la901121c | - |
| heal.language | en | - |
| heal.access | campus | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας | el |
| heal.publicationDate | 2009 | - |
| heal.abstract | The Frenkel-Halsey-Hill (FHH) equation V/V(m) approximate to [log(P(0)/P)](-1/s) is revisited in relation to the meaning of its exponent in a specific intermediate range of pressure where capillary condensation occurs. It has been suggested in the past that plots of the form log V=constant - (D - 3)[loglog(P(0)/P)], or its equivalent log S=const - (D - 2) log r, can be used for the estimation of the dimensionality D of the adsorbing surface from those parts of the slopes at low pressure corresponding to straight lines. In the present study it is shown that, for pores of cylindrical geometry and at a specific range of pressure where those pores are filled-up during the process of capillary condensation, the local slopes d log V/d loglog[(P(0)/P)] or d log S/d log r, of plots similar to the above, may be used to estimate the pore anisotropy b of the adsorbing space from the relationships log b=[[d log V/d'loglog[(P(0)/P)] - 3] log(0.5r) or log b=[[d log S/d log r] - 2] log(0.5r). These observations lead to the physicogeometrical conjunction that. during capillary condensation in cylindrical pores, usually assumed in nitrogen porosimetry. the scaling dimension of pore anisotropy b, scaled in units of radius r, is related to the dimensionality D of the process. | en |
| heal.publisher | American Chemical Society | en |
| heal.journalName | Langmuir | en |
| heal.journalType | peer reviewed | - |
| heal.fullTextAvailability | TRUE | - |
| Appears in Collections: | Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά). ΧΗΜ | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Pomonis-2009-Frenkel-Halsey-Hill.pdf | 1.13 MB | Adobe PDF | View/Open Request a copy |
This item is licensed under a Creative Commons License
