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Enhanced hydrogen purification by graphene - Poly(Dimethyl siloxane) membrane
Affiliation:1. Bursa Technical University, Department of Mechanical Engineering, Yıldırım Campus, 16330, Bursa, Turkey;2. Istanbul Technical University, Energy Institute, Maslak, 34469, Istanbul, Turkey;1. Department of Marine Environmental Engineering, Gyeongsang National University, Gyeongsangnam-do, 53064, Republic of Korea;2. School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, 02841, Republic of Korea;3. Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 637141, Singapore;4. Graduate School of Water Resources, Sungkyunkwan University (SKKU), Gyeonggi-do, 2066, Republic of Korea;5. Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do, 15588, Republic of Korea;6. Department of Environmental Engineering, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
Abstract:In this study, a nanocomposite graphene oxide (GO) incorporated poly (dimethyl siloxane) (PDMS) membrane was produced and used for the purification of hydrogen (H2) 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/H2 selectivity. GO addition increased the CO2/H2 selectivity and H2 purification performance. The highest CO2 permeability of 3670 Barrer and CO2/H2 selectivity of 11.7 were obtained when the GO loading was 0.5 wt% when the trans-membrane pressure was 0.2 Mpa.
Keywords:Hydrogen separation  Membrane gas separation  Graphene oxide  Nanocomposite membrane
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