Improved thermal stability and reduced sublimation rate of pentaerythritol tetranitrate through doping graphene oxide

Xin Zhang, Brandon L. Weeks

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Various graphene oxide (GO)-pentaerythritol tetranitrate (PETN) micro-composites were prepared in this study to investigate the influence of nanomaterials on the stability of PETN. Differential scanning calorimetry analysis showed that PETN microcrystals become more stable after doping with GO. Additionally, thermogravimetric analysis indicated that sublimation rates and vapor pressures of various GO-PETN micro-composites were significantly reduced compared to pure PETN microcrystals. Scanning electron microscopy images indicated that PETN microcrystals were at least partially covered with GO, which may explain the increased thermal stability and reduced sublimation rate.

Original languageEnglish
Pages (from-to)1061-1067
Number of pages7
JournalJournal of Thermal Analysis and Calorimetry
Volume122
Issue number3
DOIs
StatePublished - Dec 1 2015

Keywords

  • Graphene oxide (GO)
  • Organic energetic materials
  • Pentaerythritol tetranitrate (PETN)
  • Sublimation rate
  • Thermal stability
  • Vapor pressure

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