Journal
CHEMISTRY OF MATERIALS
Volume 21, Issue 21, Pages 5284-5291Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cm902939n
Keywords
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Funding
- US Department of Energy's Office of Energy Efficiency and Renewable Energy within the Hydrogen Sorpuon Center of Excellence [DE-FC-36-05GO15073]
- Federal Aviation Administration [07-G-010]
- Office of Naval Research through a MURI with the University of California, Berkeley [00006766]
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Using diazonium chemistry, two different covalent functionalization methods for graphene nanoribbons (GNRs) were developed In addition to direct diazonium salt addition, which has been reported previously for functionalization of graphene sheets and single-walled carbon nanotubes, an in situ route using all organic nitrite Was Successfully applied This new method broadens the possibilities of functionality type since anilines call be used instead of preprepared diazonium salts The resulting functionalized GNRs (f-GNRs) are readily soluble in organic solvents such as N,N-dimethylformamide and N-methyl-2-pyrrolidinone, which increases their solution processability The f-GNRs were also found to be in a reduced state, with minimal sp(2) carbon disruption, while keeping the ribbon shape. These organic-soluble ribbons might find applications in composites and thin film materials.
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