Study of water escape and invasion in nanoporous alumina using GASMAS and gravimetric methods

Okky Maryana; Abdulaziz Aljalal; Samer Qari; Watheq Al-Basheer; Khaled Gasmi

doi:10.1016/j.rinp.2025.108446

Study of water escape and invasion in nanoporous alumina using GASMAS and gravimetric methods

Okky Maryana
, Abdulaziz Aljalal^*
, Samer Qari
, Watheq Al-Basheer
, Khaled Gasmi

^*Corresponding author for this work

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

Abstract

This study investigates water escape and invasion dynamics in commercial alumina discs, which have sharp size distributions and average pore sizes of 50, 80, and 150 nm, using two different methods, namely, gravimetric and Gas in Scattering Media Absorption Spectroscopy (GASMAS). Before performing measurements in ambient air, the samples were initially placed in a water-saturated environment for the escape study, while for the invasion study, they were initially put in a vacuum environment. Both methods were found to agree and revealed that the time constants for escape and invasion processes were inversely proportional to the average pore sizes. However, the GASMAS method has the capability of distinguishing between water vapor and liquid content in the samples and assessing them simultaneously.

Original language	English
Article number	108446
Journal	Results in Physics
Volume	77
DOIs	https://doi.org/10.1016/j.rinp.2025.108446
State	Published - Oct 2025

Bibliographical note

Publisher Copyright:
© 2025 The Authors

Keywords

GASMAS
Gravimetric method
Nanoporous alumina
Water escape
Water invasion

ASJC Scopus subject areas

General Physics and Astronomy

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.rinp.2025.108446

Cite this

@article{c639642950444ec2a5f0e75dc216c836,

title = "Study of water escape and invasion in nanoporous alumina using GASMAS and gravimetric methods",

abstract = "This study investigates water escape and invasion dynamics in commercial alumina discs, which have sharp size distributions and average pore sizes of 50, 80, and 150 nm, using two different methods, namely, gravimetric and Gas in Scattering Media Absorption Spectroscopy (GASMAS). Before performing measurements in ambient air, the samples were initially placed in a water-saturated environment for the escape study, while for the invasion study, they were initially put in a vacuum environment. Both methods were found to agree and revealed that the time constants for escape and invasion processes were inversely proportional to the average pore sizes. However, the GASMAS method has the capability of distinguishing between water vapor and liquid content in the samples and assessing them simultaneously.",

keywords = "GASMAS, Gravimetric method, Nanoporous alumina, Water escape, Water invasion",

author = "Okky Maryana and Abdulaziz Aljalal and Samer Qari and Watheq Al-Basheer and Khaled Gasmi",

note = "Publisher Copyright: {\textcopyright} 2025 The Authors",

year = "2025",

month = oct,

doi = "10.1016/j.rinp.2025.108446",

language = "English",

volume = "77",

journal = "Results in Physics",

issn = "2211-3797",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Study of water escape and invasion in nanoporous alumina using GASMAS and gravimetric methods

AU - Maryana, Okky

AU - Aljalal, Abdulaziz

AU - Qari, Samer

AU - Al-Basheer, Watheq

AU - Gasmi, Khaled

PY - 2025/10

Y1 - 2025/10

N2 - This study investigates water escape and invasion dynamics in commercial alumina discs, which have sharp size distributions and average pore sizes of 50, 80, and 150 nm, using two different methods, namely, gravimetric and Gas in Scattering Media Absorption Spectroscopy (GASMAS). Before performing measurements in ambient air, the samples were initially placed in a water-saturated environment for the escape study, while for the invasion study, they were initially put in a vacuum environment. Both methods were found to agree and revealed that the time constants for escape and invasion processes were inversely proportional to the average pore sizes. However, the GASMAS method has the capability of distinguishing between water vapor and liquid content in the samples and assessing them simultaneously.

AB - This study investigates water escape and invasion dynamics in commercial alumina discs, which have sharp size distributions and average pore sizes of 50, 80, and 150 nm, using two different methods, namely, gravimetric and Gas in Scattering Media Absorption Spectroscopy (GASMAS). Before performing measurements in ambient air, the samples were initially placed in a water-saturated environment for the escape study, while for the invasion study, they were initially put in a vacuum environment. Both methods were found to agree and revealed that the time constants for escape and invasion processes were inversely proportional to the average pore sizes. However, the GASMAS method has the capability of distinguishing between water vapor and liquid content in the samples and assessing them simultaneously.

KW - GASMAS

KW - Gravimetric method

KW - Nanoporous alumina

KW - Water escape

KW - Water invasion

UR - https://www.scopus.com/pages/publications/105016822876

U2 - 10.1016/j.rinp.2025.108446

DO - 10.1016/j.rinp.2025.108446

M3 - Article

AN - SCOPUS:105016822876

SN - 2211-3797

VL - 77

JO - Results in Physics

JF - Results in Physics

M1 - 108446

ER -

Study of water escape and invasion in nanoporous alumina using GASMAS and gravimetric methods

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

Fingerprint

Cite this