BROWSE

Related Researcher

Author's Photo

Kwak, Sang Kyu
Kyu’s MolSim Lab @ UNIST
Research Interests
  • Molecular modeling and simulation, statistical thermodynamics, molecular physics

ITEM VIEW & DOWNLOAD

Direct exfoliation and dispersion of two-dimensional materials in pure water via temperature control

Cited 1 times inthomson ciCited 0 times inthomson ci
Title
Direct exfoliation and dispersion of two-dimensional materials in pure water via temperature control
Author
Kim, JinseonKwon, SanghyukCho, Dae-HyunKang, ByunggilKwon, HyukjoonKim, YoungchanPark, Sung O.Jung, Gwan YeongShin, EunhyeKim, Wan-GuLee, HyungdongRyu, Gyeong HeeChoi, MimseokKim, Tae HyeongOh, JunghoonPark, SungjinKwak, Sang KyuYoon, Suk WangByun, DoyoungLee, ZonghoonLee, Changgu
Issue Date
2015-09
Publisher
NATURE PUBLISHING GROUP
Citation
NATURE COMMUNICATIONS, v.6, pp.8294
Abstract
The high-volume synthesis of two-dimensional (2D) materials in the form of platelets is desirable for various applications. While water is considered an ideal dispersion medium, due to its abundance and low cost, the hydrophobicity of platelet surfaces has prohibited its widespread use. Here we exfoliate 2D materials directly in pure water without using any chemicals or surfactants. In order to exfoliate and disperse the materials in water, we elevate the temperature of the sonication bath, and introduce energy via the dissipation of sonic waves. Storage stability greater than one month is achieved through the maintenance of high temperatures, and through atomic and molecular level simulations, we further discover that good solubility in water is maintained due to the presence of platelet surface charges as a result of edge functionalization or intrinsic polarity. Finally, we demonstrate inkjet printing on hard and flexible substrates as a potential application of water-dispersed 2D materials.
URI
https://scholarworks.unist.ac.kr/handle/201301/17712
URL
http://www.nature.com/ncomms/2015/150915/ncomms9294/full/ncomms9294.html
DOI
10.1038/ncomms9294
ISSN
2041-1723
Appears in Collections:
MSE_Journal Papers
ECHE_Journal Papers
Files in This Item:
ncomms9294.pdf Download

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU