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Author

Kim, Byeong-Su
Soft and Hybrid Nanomaterials Lab
Research Interests
  • Carbon materials, polymer, Layer-by-Layer (LbL) assembly, hyperbranched polymer, polyglycerol (PG), bio-applications

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Hollow Capsules of Reduced Graphene Oxide Nanosheets Assembled on a Sacrificial Colloidal Particle

Cited 37 times inthomson ciCited 34 times inthomson ci
Title
Hollow Capsules of Reduced Graphene Oxide Nanosheets Assembled on a Sacrificial Colloidal Particle
Author
Hong, JinkeeChar, KookheonKim, Byeong-Su
Keywords
Building blockes; Colloidal particle; Gold Nanoparticles; Graphene multilayers; Graphene oxides; Hollow capsules; Layer-by-layer assemblies; Positively charged; SEM and TEM
Issue Date
201012
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, v.1, no.24, pp.3442 - 3445
Abstract
We introduce a novel and versatile approach for preparing hollow multilayer capsules of graphene oxide nanosheets. Positively charged reduced graphene oxide (rGO-NH(3)(+)) and negatively charged reduced graphene oxide (rGO-COO(-)) were used as building blocks for the layer-by-layer assembly of graphene multilayer films onto polystyrene (PS) colloids. After removing the PS colloids with THF treatment, hollow graphene capsules with necessary physical and chemical stabilities were prepared successfully. Furthermore, we expand this approach in incorporating a new functionality such as gold nanoparticles into a hollow graphene capsule. SEM and TEM analyses suggest the successful preparation of multilayers of hollow graphene capsules and integration of gold nanoparticles into a hollow graphene capsule.
URI
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DOI
http://dx.doi.org/10.1021/jz101441a
ISSN
1948-7185
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