Gas separation using graphene nanosheet: insights from theory and simulation
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Gas separation using graphene nanosheet: insights from theory and simulation S. Mahmood Fatemi 1
&
Seyed Jamilaldin Fatemi 1 & Zeynab Abbasi 2
Received: 20 May 2020 / Accepted: 19 October 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract The investigation of porous graphene, especially experimental research, is a challenging issue in related academic and technology and has become a hot topic in recent years. It is well known that the preparation of porous graphene is a difficult problem in experimental techniques. To prepare nanoporous graphene, much attention must focus on the quality of nanoporous structures and throughput array pores. Therefore, a comprehensive summary as much as possible has been made to provide a better understanding of the progress. A summary of synthesis techniques, the properties of nanoporous graphene membranes from the synthesis point of view, and potential applications of porous graphene and graphene oxide for gas separation on the basis of theoretical studies were given attention in this paper. Gas separation, including carbon dioxide capture, gas storage, natural gas sweetening, and flue gas purification through porous graphene, is of great interest. Porous graphene with narrow pore distribution provides exciting opportunities in gas separation processes. Keywords Membrane separation . Gas purification . Graphene nanopores . Graphene oxide . Functionalized graphene nanopores . Molecular dynamics (MD) simulation
Introduction Graphene and nanoporous graphene-based membrane have been considered an ideal membrane due to atomically thin and robust materials as well as chemically stable [1]. An ideal membrane for gas separation must have two characterizations, great selectivity and flux. Selectivity states to separate a component from a mixture and flux corresponds to higher productivity. Being thin and mechanically strong is required for an ideal membrane for gas separation. These features resulted in higher selectivity and preserve graphene from fracture. These two characterizations are summarized in graphene and its derivative membranes and make them a promising candidate for gas separations [2], so the existence of holes in a single * Seyed Jamilaldin Fatemi [email protected] * Zeynab Abbasi [email protected] 1
Department of Chemistry, Shahid Bahonar University of Kerman, Kerman 76169-133, Iran
2
Faculty of Chemistry, Tehran North Branch, Islamic Azad University, Tehran, Iran
graphene sheet and functionalized nanoporous graphene are two different approaches that can be utilized for gas separation [3]. In 1966, Mermin and Wagner released their theorem about two-dimensional crystal [4]. The theorem states that a 2D crystal could not freely be existed due to thermal fluctuations [5]. Despite the odds, the theoretical and experimental investigations of graphene have progressed very rapidly [6, 7], since the first experimental evidence of 2D structure of graphite has been discovered by Geim and co-workers in 2004 [8]. The nanoporous graphene
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