Graphene oxide-fullerene nanocomposite laminates for efficient hydrogen purification

Qi Guo; Behnam Ghalei; Detao Qin; Daizu Mizutani; Ikumi Joko; Habib Al-Aziz; Tomohiro Higashino; Masateru M Ito; Hiroshi Imahori; Easan Sivaniah

doi:10.1039/d3cc02175k

Graphene oxide-fullerene nanocomposite laminates for efficient hydrogen purification

Chem Commun (Camb). 2023 Aug 15;59(66):10012-10015. doi: 10.1039/d3cc02175k.

Authors

Qi Guo¹, Behnam Ghalei^{1

2}, Detao Qin^{1

2}, Daizu Mizutani¹, Ikumi Joko^{1

2}, Habib Al-Aziz^{1

2}, Tomohiro Higashino¹, Masateru M Ito^{1

2}, Hiroshi Imahori^{1

2

3}, Easan Sivaniah^{1

2}

Affiliations

¹ Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan. imahori@scl.kyoto-u.ac.jp.
² Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Kyoto, 606-8501, Japan. bghalei@icems.kyoto-u.ac.jp.
³ Institute for Liberal Arts and Sciences (ILAS), Kyoto University, Kyoto, 606-8316, Japan.

PMID: 37523152
DOI: 10.1039/d3cc02175k

Abstract

Graphene oxide (GO) with its unique two-dimensional structure offers an emerging platform for designing advanced gas separation membranes that allow for highly selective transport of hydrogen molecules. Nevertheless, further tuning of the interlayer spacing of GO laminates and its effect on membrane separation efficiency remains to be explored. Here, positively charged fullerene C₆₀ derivatives are electrostatically bonded to the surface of GO sheets in order to manipulate the interlayer spacing between GO nanolaminates. The as-prepared GO-C₆₀ membranes have a high H₂ permeance of 3370 GPU (gas permeance units) and an H₂/CO₂ selectivity of 59. The gas separation selectivity is almost twice that of flat GO membranes because of the role of fullerene.