Postsynthetic Modification of a Network Polymer of Intrinsic Microporosity and Its Hydrogen Adsorption Properties

2019 ◽  
Vol 123 (12) ◽  
pp. 6998-7009 ◽  
Author(s):  
D. Ramimoghadam ◽  
L. Naheed ◽  
S. E. Boyd ◽  
C. L. Brown ◽  
T. A. Webb ◽  
...  
Keyword(s):  
Hydrogen Adsorption ◽  
Adsorption Properties ◽  
Network Polymer ◽  
Postsynthetic Modification ◽  
Polymer Of Intrinsic Microporosity ◽  
Intrinsic Microporosity

scholarly journals Chemical modification of the polymer of intrinsic microporosity PIM-1 for enhanced hydrogen storage

Adsorption ◽  
2020 ◽  
Vol 26 (7) ◽  
pp. 1083-1091
Author(s):  
Mi Tian ◽  
Sébastien Rochat ◽  
Hamish Fawcett ◽  
Andrew D. Burrows ◽  
Christopher R. Bowen ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Surface Area ◽  
Hydrogen Adsorption ◽  
Sorption Properties ◽  
Bet Surface Area ◽  
Polymer Modification ◽  
Gas Sorption ◽  
Chemically Modified ◽  
Polymer Of Intrinsic Microporosity ◽  
Intrinsic Microporosity

Abstract A detailed investigation has been carried out of the pre-polymerisation modification of the polymer of intrinsic microporosity PIM-1 by the addition of two methyl (Me) groups to its spirobisindane unit to create a new chemically modified PIM-1 analogue, termed MePIM. Our work explores the effects of this modification on the porosity of PIM-1 and hence on its gas sorption properties. MePIM was successfully synthesised using either low (338 K) or high (423 K) temperature syntheses. It was observed that introduction of methyl groups to the spirobisindane part of PIM-1 generates additional microporous spaces, which significantly increases both surface area and hydrogen storage capacity. The BET surface area (N2 at 77 K) was increased by ~ 12.5%, resulting in a ~ 25% increase of hydrogen adsorption after modification. MePIM also maintains the advantages of good processability and thermal stability. This work provides new insights on a facile polymer modification that enables enhanced gas sorption properties.

scholarly journals Adsorption of H2 on Penta-Octa-Penta Graphene: Grand Canonical Monte Carlo Study

2020 ◽  
Vol 6 (2) ◽  
pp. 20
Author(s):  
Maxim N. Popov ◽  
Thomas Dengg ◽  
Dominik Gehringer ◽  
David Holec
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Hydrogen Adsorption ◽  
Monte Carlo Study ◽  
Adsorption Properties ◽  
Cryogenic Temperatures ◽  
Grand Canonical Monte Carlo ◽  
New Material ◽  
Grand Canonical ◽  
Carbon Based

In this paper, we report the results of hydrogen adsorption properties of a new 2D carbon-based material, consisting of pentagons and octagons (Penta-Octa-Penta-graphene or POP-graphene), based on the Grand-Canonical Monte Carlo simulations. The new material exhibits a moderately higher gravimetric uptake at cryogenic temperatures (77 K), as compared to the regular graphene. We discuss the origin of the enhanced uptake of POP-graphene and offer a consistent explanation.

scholarly journals Polymer of Intrinsic Microporosity Induces Host-Guest Substrate Selectivity in Heterogeneous 4-Benzoyloxy-TEMPO-Catalysed Alcohol Oxidations

2015 ◽  
Vol 7 (1) ◽  
pp. 70-78 ◽  
Author(s):  
Sunyhik D. Ahn ◽  
Adam Kolodziej ◽  
Richard Malpass-Evans ◽  
Mariolino Carta ◽  
Neil B. McKeown ◽  
...  
Keyword(s):  
Substrate Selectivity ◽  
Polymer Of Intrinsic Microporosity ◽  
Intrinsic Microporosity

scholarly journals Redox reactivity at silver microparticle—glassy carbon contacts under a coating of polymer of intrinsic microporosity (PIM)

2017 ◽  
Vol 21 (7) ◽  
pp. 2141-2146 ◽  
Author(s):  
Daping He ◽  
Erwan Rauwel ◽  
Richard Malpass-Evans ◽  
Mariolino Carta ◽  
Neil B. McKeown ◽  
...  
Keyword(s):  
Glassy Carbon ◽  
Polymer Of Intrinsic Microporosity ◽  
Redox Reactivity ◽  
Intrinsic Microporosity

Hydrogen adsorption properties of polymer-derived nanoporous SiCx fibers

2010 ◽  
Vol 35 (7) ◽  
pp. 3165-3169 ◽  
Author(s):  
Zengyong Chu ◽  
Rongan He ◽  
Xiaobin Zhang ◽  
Haifeng Cheng ◽  
Xiaodong Li ◽  
...  
Keyword(s):  
Hydrogen Adsorption ◽  
Adsorption Properties

Hydrogen adsorption properties based on holey graphene sheets

2018 ◽  
Author(s):  
Amanpreet Kaur ◽  
Jasmeet Kaur ◽  
Anita Hastir ◽  
Virpal ◽  
Ravi Chand Singh
Keyword(s):  
Hydrogen Adsorption ◽  
Adsorption Properties ◽  
Graphene Sheets
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