Synthesis and energy release of nitrobenzene-functionalized single-walled carbon nanotubes

Joel T. Abrahamson, Changsik Song, Jenny H. Hu, Jared M. Forman, Sayalee G. Mahajan, Nitish Nair, Wonjoon Choi, Eun Ji Lee, Michael S. Strano

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Nanomaterials offer advantages as new fuels and energetic materials because of increased surface areas, enhancement of chemical reactivity that often accompanies a reduction in particle size, and the ability to form composites. Applications include new energy storage devices and power sources. In this work, we report the synthesis of single-walled carbon nanotubes decorated with mono-, di-, and trinitrobenzenes via diazonium chemistry as a means of increasing their energy density. Differential scanning calorimetry confirms thermally initiated energy release from such systems, with no release from control materials. Analysis of calorimetric data shows a statistically lower value of activation energy at low conversion, providing evidence for nanotube-guided chain reactions. Although covalent functionalization introduces defects that tend to scatter electrons and phonons, reducing electrical and thermal conductivity, we show that thermopower waves are still able to rapidly propagate along such decorated nanotubes and produce electrical power. The results offer new ways of storing chemical energy within carbon nanotubes and new conduits for thermopower wave generators.

Original languageEnglish
Pages (from-to)4557-4562
Number of pages6
JournalChemistry of Materials
Volume23
Issue number20
DOIs
Publication statusPublished - 2011 Oct 25
Externally publishedYes

Keywords

  • carbon nanotubes
  • energy storage
  • nanoenergetic materials
  • power source
  • reaction propagation
  • thermopower waves

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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  • Cite this

    Abrahamson, J. T., Song, C., Hu, J. H., Forman, J. M., Mahajan, S. G., Nair, N., Choi, W., Lee, E. J., & Strano, M. S. (2011). Synthesis and energy release of nitrobenzene-functionalized single-walled carbon nanotubes. Chemistry of Materials, 23(20), 4557-4562. https://doi.org/10.1021/cm201947y