Stable aqueous suspension and self-assembly of graphite nanoplatelets coated with various polyelectrolytes

Jue Lu, Inhwan Do, Hiroyuki Fukushima, Ilsoon Lee, Lawrence T. Drzal

Research output: Contribution to journalArticle

  • 15 Citations

Abstract

Exfoliated graphite nanoplatelets (xGnPs) with an average thickness of 110nm present an inexpensive alternative to carbon nanotubes in many applications. In this paper, stable aqueous suspension of xGnP was achieved by noncovalent functionalization of xGnP with polyelectrolytes. The surfactants and polyelectrolytes were compared with respect to their ability to suspend graphite nanoplatelets. The surface charge of the nanoplatelets was characterized with zeta potential measurements, and the bonding strength of the polymer chains to the surface of xGnP was characterized with Raman spectroscopy. This robust method opens up the possibility of using this inexpensive nanomaterial in many applications, including electrochemical devices, and leads to simple processing techniques such as layer-by-layer deposition. Therefore, the formation of xGnP conductive coatings using layer-by-layer deposition was also demonstrated.

LanguageEnglish (US)
Article number186486
JournalJournal of Nanomaterials
Volume2010
DOIs
StatePublished - 2010

Profile

Graphite
Polyelectrolytes
Self assembly
Suspensions
Carbon Nanotubes
Zeta potential
Surface charge
Nanostructured materials
Surface-Active Agents
Raman spectroscopy
Carbon nanotubes
Polymers
Surface active agents
Coatings
Processing

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Stable aqueous suspension and self-assembly of graphite nanoplatelets coated with various polyelectrolytes. / Lu, Jue; Do, Inhwan; Fukushima, Hiroyuki; Lee, Ilsoon; Drzal, Lawrence T.

In: Journal of Nanomaterials, Vol. 2010, 186486, 2010.

Research output: Contribution to journalArticle

@article{a9eff8cd90444e349ba01d7c81f5f11d,
title = "Stable aqueous suspension and self-assembly of graphite nanoplatelets coated with various polyelectrolytes",
abstract = "Exfoliated graphite nanoplatelets (xGnPs) with an average thickness of 110nm present an inexpensive alternative to carbon nanotubes in many applications. In this paper, stable aqueous suspension of xGnP was achieved by noncovalent functionalization of xGnP with polyelectrolytes. The surfactants and polyelectrolytes were compared with respect to their ability to suspend graphite nanoplatelets. The surface charge of the nanoplatelets was characterized with zeta potential measurements, and the bonding strength of the polymer chains to the surface of xGnP was characterized with Raman spectroscopy. This robust method opens up the possibility of using this inexpensive nanomaterial in many applications, including electrochemical devices, and leads to simple processing techniques such as layer-by-layer deposition. Therefore, the formation of xGnP conductive coatings using layer-by-layer deposition was also demonstrated.",
author = "Jue Lu and Inhwan Do and Hiroyuki Fukushima and Ilsoon Lee and Drzal, {Lawrence T.}",
year = "2010",
doi = "10.1155/2010/186486",
language = "English (US)",
volume = "2010",
journal = "Journal of Nanomaterials",
issn = "1687-4110",
publisher = "Hindawi Publishing Corporation",

}

TY - JOUR

T1 - Stable aqueous suspension and self-assembly of graphite nanoplatelets coated with various polyelectrolytes

AU - Lu,Jue

AU - Do,Inhwan

AU - Fukushima,Hiroyuki

AU - Lee,Ilsoon

AU - Drzal,Lawrence T.

PY - 2010

Y1 - 2010

N2 - Exfoliated graphite nanoplatelets (xGnPs) with an average thickness of 110nm present an inexpensive alternative to carbon nanotubes in many applications. In this paper, stable aqueous suspension of xGnP was achieved by noncovalent functionalization of xGnP with polyelectrolytes. The surfactants and polyelectrolytes were compared with respect to their ability to suspend graphite nanoplatelets. The surface charge of the nanoplatelets was characterized with zeta potential measurements, and the bonding strength of the polymer chains to the surface of xGnP was characterized with Raman spectroscopy. This robust method opens up the possibility of using this inexpensive nanomaterial in many applications, including electrochemical devices, and leads to simple processing techniques such as layer-by-layer deposition. Therefore, the formation of xGnP conductive coatings using layer-by-layer deposition was also demonstrated.

AB - Exfoliated graphite nanoplatelets (xGnPs) with an average thickness of 110nm present an inexpensive alternative to carbon nanotubes in many applications. In this paper, stable aqueous suspension of xGnP was achieved by noncovalent functionalization of xGnP with polyelectrolytes. The surfactants and polyelectrolytes were compared with respect to their ability to suspend graphite nanoplatelets. The surface charge of the nanoplatelets was characterized with zeta potential measurements, and the bonding strength of the polymer chains to the surface of xGnP was characterized with Raman spectroscopy. This robust method opens up the possibility of using this inexpensive nanomaterial in many applications, including electrochemical devices, and leads to simple processing techniques such as layer-by-layer deposition. Therefore, the formation of xGnP conductive coatings using layer-by-layer deposition was also demonstrated.

UR - http://www.scopus.com/inward/record.url?scp=77956867182&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77956867182&partnerID=8YFLogxK

U2 - 10.1155/2010/186486

DO - 10.1155/2010/186486

M3 - Article

VL - 2010

JO - Journal of Nanomaterials

T2 - Journal of Nanomaterials

JF - Journal of Nanomaterials

SN - 1687-4110

M1 - 186486

ER -