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Efficient route to large arrays of CNx nanofibers by pyrolysis of ferrocene/melamine mixtures

journal contribution
posted on 2023-06-08, 00:09 authored by M Terrones, H Terrones, N Grobert, W K Hsu, Y Q Zhu, J P Hare, H W Kroto, D R M Walton, Ph Kohler-Redlich, M Ruhle, J P Zhang, A K Cheetham
We report a high-yield route to two-dimensional arrays (<400×400?µm2) of aligned C49Nx (x ? 1) nanofibers (<100 nm o.d.; <60 µm length), by pyrolyzing mixtures of ferrocene and melamine at 950–1050?°C under an Ar flow. The fibers exhibit unusual interlinked stacked-cone morphologies, ascribed to the presence of nitrogen. High-resolution electron energy-loss spectroscopy of the individual fibers reveals a 2% nitrogen content with ionization energies mainly at ~400.9 eV, corresponding to N bonded to three C atoms within a hexagonal framework. The nanofibers may be useful for the economic fabrication of field emission sources and robust composites.

History

Publication status

  • Published

Journal

Applied Physics Letters

Publisher

Applied Physics Letters

Volume

75

Page range

3932-3934

ISBN

0003-6951

Department affiliated with

  • Chemistry Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

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