Incorporation of thermally labile additives in polyimide carbon membrane for hydrogen separation

Norazlianie, Sazali and W. N. W., Salleh and A. F., Ismail and Iwamotoe, Yuji (2021) Incorporation of thermally labile additives in polyimide carbon membrane for hydrogen separation. International Journal of Hydrogen Energy. pp. 1-9. ISSN 0360-3199. (In Press / Online First) (In Press / Online First)

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In this study, three thermally labile additives microcrystalline cellulose (MCC), nanocrystalline cellulose (NCC), and polyvinylpyrrolidone (PVP) were introduced to the P84-copolyimide (PI) solution. PI-based carbon tubular membranes were fabricated using dip-coating method, followed by sample characterizations in order to determine their structural morphologies, thermal stability and gas permeation performance. NCC was added as the membrane pore former for the hydrogen gas (H2) separation. While tests involving pure H2 and N2 permeation were carried out at room temperature, carbon membranes were carbonized at a final temperature of 800 °C, with the heating rate of 3 °C/min under the Ar flow. Excellent result of H2/N2 selectivity was obtained with value of 430.06 ± 4.16. Addition of NCC has significantly increased the number of pore channels in the membrane, hence, contributing to high gas permeance and selectivity. NCC has shown potential as a good additive for an enhanced hydrogen separation performance.

Item Type: Article
Uncontrolled Keywords: Thermally labile additives; Hydrogen separation; Membrane carbonization; Carbon membrane; Nanocrystalline cellulose
Subjects: Q Science > Q Science (General)
T Technology > T Technology (General)
Faculty/Division: Centre of Excellence: Centre of Excellence for Advanced Research in Fluid Flow
Faculty of Mechanical and Automotive Engineering Technology
Depositing User: Dr. Norazlianie Sazali
Date Deposited: 04 Feb 2021 08:47
Last Modified: 04 Feb 2021 08:47
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