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Gas permeation through graphdiyne-based nanoporous membranes.
Zhou, Zhihua; Tan, Yongtao; Yang, Qian; Bera, Achintya; Xiong, Zecheng; Yagmurcukardes, Mehmet; Kim, Minsoo; Zou, Yichao; Wang, Guanghua; Mishchenko, Artem; Timokhin, Ivan; Wang, Canbin; Wang, Hao; Yang, Chongyang; Lu, Yizhen; Boya, Radha; Liao, Honggang; Haigh, Sarah; Liu, Huibiao; Peeters, Francois M; Li, Yuliang; Geim, Andre K; Hu, Sheng.
Afiliação
  • Zhou Z; State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, People's Republic of China.
  • Tan Y; Department of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, UK.
  • Yang Q; National Graphene Institute, University of Manchester, Manchester, M13 9PL, UK.
  • Bera A; Department of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, UK.
  • Xiong Z; National Graphene Institute, University of Manchester, Manchester, M13 9PL, UK.
  • Yagmurcukardes M; Department of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, UK.
  • Kim M; National Graphene Institute, University of Manchester, Manchester, M13 9PL, UK.
  • Zou Y; Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China.
  • Wang G; University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
  • Mishchenko A; Department of Photonics, Izmir Institute of Technology, 35430, Izmir, Turkey.
  • Timokhin I; Department of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, UK.
  • Wang C; National Graphene Institute, University of Manchester, Manchester, M13 9PL, UK.
  • Wang H; Department of Materials, University of Manchester, Manchester, M13 9PL, UK.
  • Yang C; State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, People's Republic of China.
  • Lu Y; Department of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, UK.
  • Boya R; National Graphene Institute, University of Manchester, Manchester, M13 9PL, UK.
  • Liao H; Department of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, UK.
  • Haigh S; National Graphene Institute, University of Manchester, Manchester, M13 9PL, UK.
  • Liu H; State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, People's Republic of China.
  • Peeters FM; State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, People's Republic of China.
  • Li Y; State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, People's Republic of China.
  • Geim AK; State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, People's Republic of China.
  • Hu S; Department of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, UK.
Nat Commun ; 13(1): 4031, 2022 Jul 12.
Article em En | MEDLINE | ID: mdl-35821120
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.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article