Few-Layer Graphene Shells and Nonmagnetic Encapsulates: A Versatile and Nontoxic Carbon Nanomaterial

In this work a simple and scalable approach to coat nonmagnetic nanoparticles with few-layer graphene is presented. In addition, the easy processing of such nanoparticles to remove their core, leaving only the 3D graphene nanoshell, is demonstrated. The samples are comprehensively characterized, as...

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Bibliographic Details
Published in:ACS nano 2013-12, Vol.7 (12), p.10552-10562
Main Authors: Bachmatiuk, Alicja, Mendes, Rafael G, Hirsch, Cordula, Jähne, Carsten, Lohe, Martin R, Grothe, Julia, Kaskel, Stefan, Fu, Lei, Klingeler, Rüdiger, Eckert, Jürgen, Wick, Peter, Rümmeli, Mark H
Format: Article
Language:English
Subjects:
Battery
Carbon
Carbon - chemistry
Cell Line, Tumor
Cell Survival
Electrochemistry
Encapsulation
Graphene
Graphite - chemistry
Health
Humans
Magnetics
Nanoparticles
Nanostructure
Nanostructures - chemistry
Nanotubes, Carbon - chemistry
Oxides - chemistry
Powders
Reactive Oxygen Species
Surface Properties
Temperature
Three dimensional
Titanium - chemistry
Toxicity Tests
Versatility
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Summary:In this work a simple and scalable approach to coat nonmagnetic nanoparticles with few-layer graphene is presented. In addition, the easy processing of such nanoparticles to remove their core, leaving only the 3D graphene nanoshell, is demonstrated. The samples are comprehensively characterized, as are their versatility in terms of functionalization and as a material for electrochemical storage. Indeed, these 3D graphene nanostructures are easily functionalized much as is found with carbon nanotubes and planar graphene. Electrochemical investigations indicate these nanostructures are promising for stable long-life battery applications. Finally, initial toxicological investigations suggest no acute health risk from these 3D graphene nanostructures.
ISSN:1936-0851
1936-086X
DOI:10.1021/nn4051562