Enhanced hydrogen purification by graphene - Poly(Dimethyl siloxane) membrane


Nigiz F. , Hilmioglu N. D.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol.45, no.5, pp.3549-3557, 2020 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 45 Issue: 5
  • Publication Date: 2020
  • Doi Number: 10.1016/j.ijhydene.2018.12.215
  • Title of Journal : INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Page Numbers: pp.3549-3557
  • Keywords: Hydrogen separation, Membrane gas separation, Graphene oxide, Nanocomposite membrane, MIXED-MATRIX MEMBRANES, GAS-PERMEABILITY, OXIDE, SEPARATION, CO2, PERFORMANCE, PERMEATION, COMPOSITE, CHALLENGES, DIFFUSION

Abstract

In this study, a nanocomposite graphene oxide (GO) incorporated poly (dimethyl siloxane) (PDMS) membrane was produced and used for the purification of hydrogen (H-2) by separating the (CO2). The produced membrane was characterized and the single-gas permeability test was performed. Effects of GO addition, trans-membrane pressure and membrane thickness on the gas separation performance of membrane were evaluated as a function of permeability and CO2/H-2 selectivity. GO addition increased the CO2/H-2 selectivity and H-2 purification performance. The highest CO2 permeability of 3670 Barrer and CO2/H-2 selectivity of 11.7 were obtained when the GO loading was 0.5 wt% when the trans membrane pressure was 0.2 Mpa. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.