Article Enormous CO2 Sorption Capacity of PDMS Rubbers near Condensation Pressure and at Low Temperatures

Mizuki Inoue SAMURAI ORCID (National Institute for Materials ScienceROR) ; Edhuan Ismail ; Sadaki Samitsu SAMURAI ORCID (National Institute for Materials ScienceROR) ; Hirofumi Kanoh ; Izumi Ichinose SAMURAI ORCID (National Institute for Materials ScienceROR)

Enormous CO2 Sorption Capacity of PDMS Rubbers near Condensation Pressure and at Low Temperatures.pdf
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Mizuki Inoue, Edhuan Ismail, Sadaki Samitsu, Hirofumi Kanoh, Izumi Ichinose. Enormous CO2 Sorption Capacity of PDMS Rubbers near Condensation Pressure and at Low Temperatures. CHEMISTRY LETTERS. 2022, 51 (12), 1113-1116. https://doi.org/10.1246/cl.220410
SAMURAI

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(abstract)

We report for the first time that PDMS rubber sorbs an extremely large amount of CO2 (792 mg g−1) at near the condensation pressure at a certain low temperature (−3 °C), giving the sorption enthalpy of 9.3–10.8 kJ mol−1. The sorption isotherms were evaluated by means of the Flory–Huggins equation, and the resultant χ parameters (1.3–0.2) were used to estimate the solubility parameter (SP). The CO2/CH4 and CO2/N2 selectivities were 9.6–44 at 100–3000 kPa and were far larger than those of activated carbon.

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Keyword: CO2 recovery, PDMS, sorption enthalpy, gas separation, Flory-Huggins theory, carbon dioxide, gas adsorption

Date published: 2022-12-05

Publisher: The Chemical Society of Japan

Journal:

  • CHEMISTRY LETTERS (ISSN: 03667022) vol. 51 issue. 12 p. 1113-1116

Funding:

Manuscript type: Author's version (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.3958

First published URL: https://doi.org/10.1246/cl.220410

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Updated at: 2024-01-05 22:11:26 +0900

Published on MDR: 2023-05-11 11:18:33 +0900

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