Experimental Evidence for Pore Blocking as the Mechanism for Nitrogen Sorption Hysteresis in a Mesoporous Material

Sean P Rigby; Robin S Fletcher

doi:10.1021/jp031253s

Experimental Evidence for Pore Blocking as the Mechanism for Nitrogen Sorption Hysteresis in a Mesoporous Material

Sean P Rigby
, Robin S Fletcher

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

35 Citations (SciVal)

Abstract

The theory of "pore blocking" is often used, particularly in combination with percolation theory, to develop methods of anal. for gas sorption data for the structural characterization of porous media. However, the evidence for the existence of the pore-blocking effect is conflicting and equivocal. In the work described here mercury porosimetry expts. were integrated with gas sorption to detect the existence of pore-blocking effects during the desorption of nitrogen from a mesoporous sol-gel silica material at 77 K. [on SciFinder (R)]

Original language	English
Pages (from-to)	4690-4695
Number of pages	6
Journal	Journal of Physical Chemistry B
Volume	108
Issue number	15
DOIs	https://doi.org/10.1021/jp031253s
Publication status	Published - 2004

Keywords

Desorption
pore blocking desorption nitrogen mesoporous silica mercury porosimetry
Pore (pore blocking during desorption of nitrogen from mesoporous silica studied using mercury porosimetry)
Porous materials (mesoporous
pore blocking during desorption of nitrogen from mesoporous silica studied using mercury porosimetry)

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10.1021/jp031253s

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title = "Experimental Evidence for Pore Blocking as the Mechanism for Nitrogen Sorption Hysteresis in a Mesoporous Material",

abstract = "The theory of {"}pore blocking{"} is often used, particularly in combination with percolation theory, to develop methods of anal. for gas sorption data for the structural characterization of porous media. However, the evidence for the existence of the pore-blocking effect is conflicting and equivocal. In the work described here mercury porosimetry expts. were integrated with gas sorption to detect the existence of pore-blocking effects during the desorption of nitrogen from a mesoporous sol-gel silica material at 77 K. [on SciFinder (R)]",

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year = "2004",

doi = "10.1021/jp031253s",

language = "English",

volume = "108",

pages = "4690--4695",

journal = "Journal of Physical Chemistry B",

issn = "1520-6106",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Experimental Evidence for Pore Blocking as the Mechanism for Nitrogen Sorption Hysteresis in a Mesoporous Material

AU - Rigby, Sean P

AU - Fletcher, Robin S

PY - 2004

Y1 - 2004

N2 - The theory of "pore blocking" is often used, particularly in combination with percolation theory, to develop methods of anal. for gas sorption data for the structural characterization of porous media. However, the evidence for the existence of the pore-blocking effect is conflicting and equivocal. In the work described here mercury porosimetry expts. were integrated with gas sorption to detect the existence of pore-blocking effects during the desorption of nitrogen from a mesoporous sol-gel silica material at 77 K. [on SciFinder (R)]

AB - The theory of "pore blocking" is often used, particularly in combination with percolation theory, to develop methods of anal. for gas sorption data for the structural characterization of porous media. However, the evidence for the existence of the pore-blocking effect is conflicting and equivocal. In the work described here mercury porosimetry expts. were integrated with gas sorption to detect the existence of pore-blocking effects during the desorption of nitrogen from a mesoporous sol-gel silica material at 77 K. [on SciFinder (R)]

KW - Desorption

KW - pore blocking desorption nitrogen mesoporous silica mercury porosimetry

KW - Pore (pore blocking during desorption of nitrogen from mesoporous silica studied using mercury porosimetry)

KW - Porous materials (mesoporous

KW - pore blocking during desorption of nitrogen from mesoporous silica studied using mercury porosimetry)

U2 - 10.1021/jp031253s

DO - 10.1021/jp031253s

M3 - Article

SN - 1520-6106

VL - 108

SP - 4690

EP - 4695

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

IS - 15

ER -

Experimental Evidence for Pore Blocking as the Mechanism for Nitrogen Sorption Hysteresis in a Mesoporous Material

Abstract

Keywords

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