Abstract

Polymers of intrinsic microporosity, such as PIM-1, advantageously combine high surface areas with good processability, which are attractive properties for hydrogen storage applications. Here we address the lack of data on the long-term mechanical stability and hydrogen uptake capacity of PIM-1 in a study carried out over 400 days. Our results show that most mechanical and surface properties of PIM-1 remain stable over this time. In particular, the mechanical strength and elasticity are maintained, and the surface area remains constant over the course of our observations. In contrast, we detected a small but statistically significant decrease of the hydrogen storage capacity of the material over time, particularly in the first stages of aging. We attribute this phenomenon to the slow rearrangement of the polymer scaffold in the solid state. Taken together, our experiments demonstrate that PIM-1 possesses the long-term stability required for realistic applications in hydrogen storage or in gas separation.
LanguageEnglish
JournalInternational Journal of Hydrogen Energy
Early online date30 Mar 2018
DOIs
StatusE-pub ahead of print - 30 Mar 2018

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microporosity
Microporosity
Hydrogen storage
polymers
Polymers
hydrogen
Mechanical stability
Scaffolds
Strength of materials
Surface properties
Elasticity
Aging of materials
surface properties
Mechanical properties
Hydrogen
elastic properties
mechanical properties
solid state
Gases
Experiments

Cite this

@article{652143f56a29405cb685c58045a00809,
title = "Assessment of the long-term stability of the polymer of intrinsic microporosity PIM-1 for hydrogen storage applications",
abstract = "Polymers of intrinsic microporosity, such as PIM-1, advantageously combine high surface areas with good processability, which are attractive properties for hydrogen storage applications. Here we address the lack of data on the long-term mechanical stability and hydrogen uptake capacity of PIM-1 in a study carried out over 400 days. Our results show that most mechanical and surface properties of PIM-1 remain stable over this time. In particular, the mechanical strength and elasticity are maintained, and the surface area remains constant over the course of our observations. In contrast, we detected a small but statistically significant decrease of the hydrogen storage capacity of the material over time, particularly in the first stages of aging. We attribute this phenomenon to the slow rearrangement of the polymer scaffold in the solid state. Taken together, our experiments demonstrate that PIM-1 possesses the long-term stability required for realistic applications in hydrogen storage or in gas separation.",
author = "Sebastien Rochat and Katarzyna Polak-Kraśna and Mi Tian and Timothy Mays and Christopher Bowen and Andrew Burrows",
year = "2018",
month = "3",
day = "30",
doi = "10.1016/j.ijhydene.2018.02.175",
language = "English",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
publisher = "Elsevier",

}

TY - JOUR

T1 - Assessment of the long-term stability of the polymer of intrinsic microporosity PIM-1 for hydrogen storage applications

AU - Rochat, Sebastien

AU - Polak-Kraśna, Katarzyna

AU - Tian, Mi

AU - Mays, Timothy

AU - Bowen, Christopher

AU - Burrows, Andrew

PY - 2018/3/30

Y1 - 2018/3/30

N2 - Polymers of intrinsic microporosity, such as PIM-1, advantageously combine high surface areas with good processability, which are attractive properties for hydrogen storage applications. Here we address the lack of data on the long-term mechanical stability and hydrogen uptake capacity of PIM-1 in a study carried out over 400 days. Our results show that most mechanical and surface properties of PIM-1 remain stable over this time. In particular, the mechanical strength and elasticity are maintained, and the surface area remains constant over the course of our observations. In contrast, we detected a small but statistically significant decrease of the hydrogen storage capacity of the material over time, particularly in the first stages of aging. We attribute this phenomenon to the slow rearrangement of the polymer scaffold in the solid state. Taken together, our experiments demonstrate that PIM-1 possesses the long-term stability required for realistic applications in hydrogen storage or in gas separation.

AB - Polymers of intrinsic microporosity, such as PIM-1, advantageously combine high surface areas with good processability, which are attractive properties for hydrogen storage applications. Here we address the lack of data on the long-term mechanical stability and hydrogen uptake capacity of PIM-1 in a study carried out over 400 days. Our results show that most mechanical and surface properties of PIM-1 remain stable over this time. In particular, the mechanical strength and elasticity are maintained, and the surface area remains constant over the course of our observations. In contrast, we detected a small but statistically significant decrease of the hydrogen storage capacity of the material over time, particularly in the first stages of aging. We attribute this phenomenon to the slow rearrangement of the polymer scaffold in the solid state. Taken together, our experiments demonstrate that PIM-1 possesses the long-term stability required for realistic applications in hydrogen storage or in gas separation.

U2 - 10.1016/j.ijhydene.2018.02.175

DO - 10.1016/j.ijhydene.2018.02.175

M3 - Article

JO - International Journal of Hydrogen Energy

T2 - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

ER -