• 文献标题:   Enhanced Combustion Characteristics of Bismuth Trioxide-Aluminum Nanocomposites Prepared through Graphene Oxide Directed Self-Assembly
  • 文献类型:   Article
  • 作  者:   THIRUVENGADATHAN R, STALEY C, GEESON JM, CHUNG S, RAYMOND KE, GANGOPADHYAY K, GANGOPADHYAY S
  • 作者关键词:   graphene, directed selfassembly, combustion, nanocomposite, reactive material, thermite
  • 出版物名称:   PROPELLANTS EXPLOSIVES PYROTECHNICS
  • ISSN:   0721-3115 EI 1521-4087
  • 通讯作者地址:   Univ Missouri
  • 被引频次:   6
  • DOI:   10.1002/prep.201400238
  • 出版年:   2015

▎ 摘  要

We present a facile, spontaneous, and surfactant-free method to controllably self-assemble aluminum and bismuth trioxide nanoparticles through the introduction of graphene oxide as a self-assembly directing agent. The self-assembled nanocomposites demonstrate significant combustion performance improvements in comparison to randomly mixed aluminum and bismuth trioxide nanoparticles with enhanced pressure generation from 60 to 200 MPa, pressurization rate from 3 to 16 MPa mu s(-1), burning rate from 1.15 to 1.55 kms(-1), and specific impulse from 41 to 71 s. The sensitivity of the self-assembled aluminum and bismuth trioxide to electrostatic discharge was reduced by four orders of magnitude, without decreasing the combustion performance. Graphene oxide directed self-assembly can be used to synthesize nanocomposites with diverse combustion properties and controlled ignition sensitivity, which lays the foundation for preparing multi-functional, highly-reactive, combustion systems in the future.