Carbon letters

Korean Carbon Society (한국탄소학회)
권호 표지
DOI QR코드

DOI QR Code

Size sorting of chemically modified graphene nanoplatelets

  • Han, Joong Tark (Nano Carbon Materials Research Group, Creative and Fundamental Research Division, Korea Electrotechnology Research Institute) ;
  • Jang, Jeong In (Nano Carbon Materials Research Group, Creative and Fundamental Research Division, Korea Electrotechnology Research Institute) ;
  • Kim, Sung Hun (Nano Carbon Materials Research Group, Creative and Fundamental Research Division, Korea Electrotechnology Research Institute) ;
  • Jeong, Seung Yol (Nano Carbon Materials Research Group, Creative and Fundamental Research Division, Korea Electrotechnology Research Institute) ;
  • Jeong, Hee Jin (Nano Carbon Materials Research Group, Creative and Fundamental Research Division, Korea Electrotechnology Research Institute) ;
  • Lee, Geon-Woong (Nano Carbon Materials Research Group, Creative and Fundamental Research Division, Korea Electrotechnology Research Institute)
  • Received : 2013.02.18
  • Accepted : 2013.03.25
  • Published : 2013.04.30
Download PDF
⟨ Previous Next ⟩

Abstract

Size-sorted graphene nanoplatelets are highly desired for fundamental research and technological applications of graphene. Here we show a facile approach for fabricating size-sorted graphene oxide (GO) nanoplatelets by a simple centrifugal method using different dispersion solvents. We found that the small-sized GO nanoplatelets were more effectively separated when dispersed in water or dimethylformamide (DMF) than in an alkali aqueous solution. After several iterations of the centrifugation, the sizes of GO in the supernatant solution were mostly several micrometers. We found that the GO area was not strongly correlated with the C-O content of the GO dispersed in water. However, the size-sorted GO nanoplatelets in DMF showed different C-O content, since DMF can reduce GO nanoplatelets during exfoliation and centrifugation processes.

Keywords

References

  1. Stankovich S, Dikin DA, Dommett GHB, Kohlhaas KM, Zimney EJ, Stach EA, Piner RD, Nguyen ST, Ruoff RS. Graphenebased composite materials. Nature 442, 282 (2006). http://dx.doi. org/10.1038/nature04969.
  2. Gilje S, Han S, Wang M, Wang KL, Kaner RB. A chemical route to graphene for device applications. Nano Lett, 7, 3394 (2007). http:// dx.doi.org/10.1021/nl0717715.
  3. Wang G, Yang J, Park J, Gou X, Wang B, Liu H, Yao J. Facile synthesis and characterization of graphene nanosheets. J Phys Chem C, 112, 8192 (2008). http://dx.doi.org/10.1021/jp710931h.
  4. Eda G, Fanchini G, Chhowalla M. Large-area ultrathin films of reduced graphene oxide as a transparent and flexible electronic material. Nat Nanotechnol, 3, 270 (2008). http://dx.doi.org/10.1038/nnano.2008.83.
  5. Becerril HA, Mao J, Liu Z, Stoltenberg RM, Bao Z, Chen Y. Evaluation of solution-processed reduced graphene oxide films as transparent conductors. ACS Nano, 2, 463 (2008). http://dx.doi. org/10.1021/nn700375n.
  6. Si Y, Samulski ET. Synthesis of water soluble graphene. Nano Lett, 8, 1679 (2008). http://dx.doi.org/10.1021/nl080604h.
  7. Park S, Ruoff RS. Chemical methods for the production of graphenes. Nat Nanotechnol, 4, 217 (2009). http://dx.doi.org/10.1038/nnano.2009.58.
  8. Han JT, Kim BJ, Kim BG, Kim JS, Jeong BH, Jeong, SY, Jeong HJ, Cho JH, Lee GW. Enhanced electrical properties of reduced graphene oxide multilayer films by in-situ insertion of a $TiO_2$ layer. ACS Nano, 5, 8884 (2011). http://dx.doi.org/10.1021/nn203054t.
  9. Jeong SY, Kim SH, Han JT, Jeong HJ, Yang SH, Lee GW. Highperformance transparent conductive films using rheologically derived reduced graphene oxide. ACS Nano, 5, 870 (2011). http:// dx.doi.org/10.1021/nn102017f.
  10. Jeong SY, Kim SH, Han JT, Jeong HJ, Jeong SY, Lee GW. Highly concentrated and conductive reduced graphene oxide nanosheets by monovalent cation-${\pi}$ interaction: toward printed electronics. Adv Funct Mater, 22, 3307 (2012). http://dx.doi.org/10.1002/adfm.20.
  11. Han JT, Jang JI, Jeong BH, Kim BJ, Jeong SY, Jeong HJ, Cho JH, Lee GW. Spontaneous reduction and dispersion of graphene nano-platelets with in situ synthesized hydrazine assisted by hexamethyldisilazane. J Mater Chem, 22, 20477 (2012). http://dx.doi. org/10.1039/c2jm34691e.
  12. Jeong HJ, Jeong HD, Kim HY, Kim SH, Kim JS, Jeong SY, Han JT, Lee GW. Flexible field emission from thermally welded chemically doped graphene thin films. Small, 8, 272 (2012). http://dx.doi. org/10.1002/smll.201101696.
  13. Zhu J, Lee CH, Joh HI, Kim HC, Lee S. Synthesis and properties of polyimide composites containing graphene oxide via insitu polymerization. Carbon Lett, 13, 230 (2012). http://dx.doi. org/10.5714/CL.2012.13.4.230.
  14. Kim J, Park SJ, Kim S. Capacitance behaviors of polyaniline/ graphene nanosheet composites prepared by aniline chemical polymerization. Carbon Lett 14, 51 (2013). http://dx.doi.org/10.5714/CL.2013.14.1.051.
  15. Park S, Hu Y, Hwang JO, Lee ES, Casabianca LB, Cai W, Potts JR, Ha HW, Chen S, Oh J, Kim SO, Kim YH, Ishii Y, Ruoff RS. Chemical structures of hydrazine-treated graphene oxide and generation of aromatic nitrogen doping. Nat Commun, 3, 638 (2012). http://dx.doi.org/10.1038/ncomms1643.
  16. Han JT, Kim JS, Jo SB, Kim SH, Kim JS, Kang B, Jeong HJ, Jeong SY, Lee GW, Cho K. Graphene oxide as a multi-functional p-dopant of transparent single-walled carbon nanotube films for optoelectronic devices. Nanoscale, 4, 7735 (2012). http://dx.doi. org/10.1039/c2nr31923c.
  17. Ai K, Liu Y, Lu L, Cheng X, Huo L. A novel strategy for making soluble reduced graphene oxide sheets cheaply by adopting an endogenous reducing agent. J Mater Chem, 21, 3365 (2011). http:// dx.doi.org/10.1039/c0jm02865g.
  18. Dreyer DR, Murali S, Zhu Y, Ruoff RS, Bielawski CW. Reduction of graphite oxide using alcohols. J Mater Chem, 21, 3443 (2011). http://dx.doi.org/10.1039/c0jm02704a .
  19. Fan X, Peng W, Li Y, Li X, Wang S, Zhang G, Zhang F. Deoxygenation of exfoliated graphite oxide under alkaline conditions: a green route to graphene preparation. Adv Mater, 20, 4490 (2008). http://dx.doi.org/10.1002/adma.200801306.
  20. Lin X, Shen X, Zheng Q, Yousefi N, Ye L, Mai YW, Kim JK. Fabrication of highly-aligned conductive and strong graphene papers using ultralarge graphene oxide sheets. ACS Nano, 6, 10708 (2012). http://dx.doi.org/10.1021/nn303904z.

Cited by

  1. Flexural properties, interlaminar shear strength and morphology of phenolic matrix composites reinforced with xGnP-coated carbon fibers vol.17, pp.1, 2016, https://doi.org/10.5714/CL.2016.17.1.033
  2. Sheet Size-Induced Evaporation Behaviors of Inkjet-Printed Graphene Oxide for Printed Electronics vol.8, pp.5, 2016, https://doi.org/10.1021/acsami.5b10704