Shock-compression of C-N precursors for possible synthesis of β-C3N4

Charles Collins, Naresh Thadhani, Zafar Iqbal

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


We report on the possible synthesis of the theoretically predicted β-phase of carbon nitride (C3N4) by shock compression of sodium dicyanamide mixed with sodium azide and carbon tetra-iodide. Shock-compression experiments were performed on starting precursor blended with ∼95 wt.% Cu powder, statically pressed in steel capsules. The capsules were impacted under conditions of constant shock amplitude, but varying shock-pulse duration. TEM analysis of the recovered shock-compressed residue showed crystallites of a cubic C-N compound dispersed in an amorphous matrix, with overall yield of the crystalline phase being a function of the shock-pulse duration. Parallel-detection electron energy loss spectroscopy of the nitrogen-containing crystallites revealed diamond-like sp3 bonding. Infra-red spectroscopy indicated absorption lines in regions calculated to be appropriate for β-C3N4.

Original languageEnglish (US)
Pages (from-to)1175-1181
Number of pages7
Issue number8
StatePublished - Jul 2001

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Materials Science


  • C. Transmission electron microscopy
  • Electron energy loss spectroscopy
  • Infrared spectroscopy


Dive into the research topics of 'Shock-compression of C-N precursors for possible synthesis of β-C3N4'. Together they form a unique fingerprint.

Cite this