Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/12296
Title: Gas permeation through graphdiyne-based nanoporous membranes
Authors: Zhou, Zhihua
Tan, Yongtao
Yang, Qian
Bera, Achintya
Xiong, Zecheng
Yağmurcukardeş, Mehmet
Kim, Minsoo
Xiamen University
University of Manchester
University of Manchester
University of Manchester
University of Chinese Academy of Sciences
01. Izmir Institute of Technology
University of Manchester
Keywords: Membrane
Gas transport
Membrane permeability
Issue Date: Jul-2022
Publisher: Nature Research
Abstract: Nanoporous membranes based on two dimensional materials are predicted to provide highly selective gas transport in combination with extreme permeance. Here we investigate membranes made from multilayer graphdiyne, a graphene-like crystal with a larger unit cell. Despite being nearly a hundred of nanometers thick, the membranes allow fast, Knudsen-type permeation of light gases such as helium and hydrogen whereas heavy noble gases like xenon exhibit strongly suppressed flows. Using isotope and cryogenic temperature measurements, the seemingly conflicting characteristics are explained by a high density of straight-through holes (direct porosity of ∼0.1%), in which heavy atoms are adsorbed on the walls, partially blocking Knudsen flows. Our work offers important insights into intricate transport mechanisms playing a role at nanoscale.
URI: https://doi.org/10.1038/s41467-022-31779-2
https://hdl.handle.net/11147/12296
Appears in Collections:Photonics / Fotonik
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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