4.6 Article

Tube-rolling and formation of mechanically robust micro-tubes in graphene oxide aqueous dispersions during shear flow

Journal

SOFT MATTER
Volume 15, Issue 21, Pages 4238-4243

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c9sm00564a

Keywords

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Funding

  1. Nano-Material Technology Development Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT, and Future Planning [2016M3A7B4027796]
  2. Technology Innovation Program - Ministry of Trade, Industry & Energy (MOTIE, Korea) [2000479]
  3. Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [2017R1D1A1B03032865]
  4. National Research Foundation of Korea [2017R1D1A1B03032865] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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We showed that GO domains at low pH are under a tube-rolling motion with a vorticity alignment at low shear rates. Mechanically robust micro-tubes were formed during tube-rolling. The microtubes were highly bendable and exhibited excellent elastic recovery. There was no restacking of GO sheets to graphitic structures for the GO micro-tube wall in a wet state.

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