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  Polymerization driven monomer passage through monolayer chemical vapour deposition graphene

Zhang, T., Liao, Z., Sandonas, L. M., Dianat, A., Liu, X., Xiao, P., et al. (2018). Polymerization driven monomer passage through monolayer chemical vapour deposition graphene. Nature Communications, 9: 4051. doi:10.1038/s41467-018-06599-y.

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Zhang, Tao1, Author
Liao, Zhongquan1, Author
Sandonas, Leonardo Medrano2, Author           
Dianat, Arezoo1, Author
Liu, Xiaoling1, Author
Xiao, Peng1, Author
Amin, Ihsan1, Author
Gutierrez, Rafael1, Author
Chen, Tao1, Author
Zschech, Ehrenfried1, Author
Cuniberti, Gianaurelio1, Author
Jordan, Rainer1, Author
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1external, ou_persistent22              
2Max Planck Institute for the Physics of Complex Systems, Max Planck Society, ou_2117288              

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 MPIPKS: Dynamics on nanoscale systems
 Abstract: Mass transport through graphene is receiving increasing attention due to the potential for molecular sieving. Experimental studies are mostly limited to the translocation of protons, ions, and water molecules, and results for larger molecules through graphene are rare. Here, we perform controlled radical polymerization with surface-anchored self-assembled initiator monolayer in a monomer solution with single-layer graphene separating the initiator from the monomer. We demonstrate that neutral monomers are able to pass through the graphene (via native defects) and increase the graphene defects ratio (Raman I-D/I-G) from ca. 0.09 to 0.22. The translocations of anionic and cationic monomers through graphene are significantly slower due to chemical interactions of monomers with the graphene defects. Interestingly, if micropatterned initiator-monolayers are used, the translocations of anionic monomers apparently cut the graphene sheet into congruent microscopic structures. The varied interactions between monomers and graphene defects are further investigated by quantum molecular dynamics simulations.

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 Dates: 2018-10-032018-10-03
 Publication Status: Issued
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Title: Nature Communications
  Abbreviation : Nat. Commun.
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 9 Sequence Number: 4051 Start / End Page: - Identifier: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723