Graphene oxide sheets chemically cross-linked by polyallylamine

Sungjin Park; Dmitriy A. Dikin; Sonbinh T. Nguyen; Rodney S. Ruoff

doi:10.1021/jp907613s

Graphene oxide sheets chemically cross-linked by polyallylamine

Sungjin Park, Dmitriy A. Dikin, Sonbinh T. Nguyen, Rodney S. Ruoff

Chemistry

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485 Scopus citations

Abstract

We report that a homogeneous aqueous colloidal suspension of chemically cross-linked graphene oxide sheets was generated by addition of polyallylamine to an aqueous suspension of graphene oxide sheets followed by sonication of the mixture. This is the first example for producing a homogeneous colloidal suspension of cross-linked graphene sheets. As a demonstration of the utility of such a colloidal suspension, "paper" material samples made by simple filtration from such a suspension of cross-linked graphene oxide sheets showed excellent mechanical stiffness and strength.

Original language	English (US)
Pages (from-to)	15801-15804
Number of pages	4
Journal	Journal of Physical Chemistry C
Volume	113
Issue number	36
DOIs	https://doi.org/10.1021/jp907613s
State	Published - Sep 10 2009

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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10.1021/jp907613s

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AU - Nguyen, Sonbinh T.

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AB - We report that a homogeneous aqueous colloidal suspension of chemically cross-linked graphene oxide sheets was generated by addition of polyallylamine to an aqueous suspension of graphene oxide sheets followed by sonication of the mixture. This is the first example for producing a homogeneous colloidal suspension of cross-linked graphene sheets. As a demonstration of the utility of such a colloidal suspension, "paper" material samples made by simple filtration from such a suspension of cross-linked graphene oxide sheets showed excellent mechanical stiffness and strength.

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Graphene oxide sheets chemically cross-linked by polyallylamine

Abstract

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