mirage

Conjugated-polyelectrolyte-functionalized reduced graphene oxide with excellent solubility and stability in polar solvents.

DSpace/Manakin Repository

 

Search DR-NTU


Advanced Search Subject Search

Browse

My Account

Conjugated-polyelectrolyte-functionalized reduced graphene oxide with excellent solubility and stability in polar solvents.

Show simple item record

dc.contributor.author Qi, Xiaoying.
dc.contributor.author Pu, Kan-Yi.
dc.contributor.author Zhou, Xiaozhu.
dc.contributor.author Li, Hai.
dc.contributor.author Liu, Bin.
dc.contributor.author Boey, Yin Chiang Freddy.
dc.contributor.author Huang, Wei.
dc.contributor.author Zhang, Hua.
dc.date.accessioned 2012-09-24T01:27:20Z
dc.date.available 2012-09-24T01:27:20Z
dc.date.copyright 2010
dc.date.issued 2012-09-24
dc.identifier.citation Qi, X., Pu, K. Y., Zhou, X., Li, H., Liu, B., Boey, F. Y. C. (2010). Conjugated-polyelectrolyte-functionalized reduced graphene oxide with excellent solubility and stability in polar solvents. Small, 6(5), 663-669.
dc.identifier.issn 1613-6829
dc.identifier.uri http://hdl.handle.net/10220/8607
dc.description.abstract Conjugated-polyelectrolyte (CPE)-functionalized reduced graphene oxide (rGO) sheets are synthesized for the first time by taking advantage of a specially designed CPE, PFVSO3, with a planar backbone and charged sulfonate and oligo(ethylene glycol) side chains to assist the hydrazine-mediated reduction of graphene oxide (GO) in aqueous solution. The resulting CPE-functionalized rGO (PFVSO3-rGO) shows excellent solubility and stability in a variety of polar solvents, including water, ethanol, methanol, dimethyl sulfoxide, and dimethyl formamide. The morphology of PFVSO3-rGO is studied by atomic force microscopy, X-ray diffraction, and transmission electron microscopy, which reveal a sandwich-like nanostructure. Within this nanostructure, the backbones of PFVSO3 stack onto the basal plane of rGO sheets via strong π–π interactions, while the charged hydrophilic side chains of PFVSO3 prevent the rGO sheets from aggregating via electrostatic and steric repulsions, thus leading to the solubility and stability of PFVSO3-rGO in polar solvents. Optoelectronic studies show that the presence of PFVSO3 within rGO induces photoinduced charge transfer and p-doping of rGO. As a result, the electrical conductivity of PFVSO3-rGO is not only much better than that of GO, but also than that of the unmodified rGO.
dc.language.iso en
dc.relation.ispartofseries Small
dc.rights © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
dc.subject DRNTU::Engineering::Materials.
dc.title Conjugated-polyelectrolyte-functionalized reduced graphene oxide with excellent solubility and stability in polar solvents.
dc.type Journal Article
dc.contributor.school School of Materials Science and Engineering
dc.identifier.doi http://dx.doi.org/10.1002/smll.200902221

Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record