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<p>The catalytic effect of nanocatalytic materials on molecular perovskite energetic materials was of great significance for promoting the development of solid propellants. The effects of nickel oxide (NiO) nanoparticles on catalytic decomposition and combustion characteristics of high-energy molecular perovskite material (H<sub>2</sub>dabco)[NH<sub>4</sub>(ClO<sub>4</sub>)<sub>3</sub> (DAP-4) were studied in this paper. With the addition of nano catalytic material NiO, the activation energy (<i>E</i><sub>a</sub>) of DAP-4/NiO composite could reduce to 103.7&#xa0;kJ·mol<sup>−1</sup>. The combustion intensity of DAP-4/NiO composites had significantly enhanced, and the combustion time of DAP-4/NiO composites was decreased by 198, 153 and 171&#xa0;ms, respectively, compared with raw DAP-4. The catalytic decomposition and combustion mechanism of DAP-4/NiO composite was proposed. It was essential to master further the catalytic characteristics of nano-oxidants on molecular perovskite energetic materials.</p>

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The effects of nickel oxide nanoparticles on catalytic decomposition and combustion characteristics of DAP-4

  • 期刊论文

  • 发表日期：

    2025年7月22日

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  • Long Guan,
  • Lin Li,
  • Zhuoyang Li,
  • Yibo Wang,
  • Xianli Zhu,
  • Binbin Zhang,
  • Hua Fang,
  • Peng Deng

摘要

The catalytic effect of nanocatalytic materials on molecular perovskite energetic materials was of great significance for promoting the development of solid propellants. The effects of nickel oxide (NiO) nanoparticles on catalytic decomposition and combustion characteristics of high-energy molecular perovskite material (H2dabco)[NH4(ClO4)3 (DAP-4) were studied in this paper. With the addition of nano catalytic material NiO, the activation energy (Ea) of DAP-4/NiO composite could reduce to 103.7 kJ·mol−1. The combustion intensity of DAP-4/NiO composites had significantly enhanced, and the combustion time of DAP-4/NiO composites was decreased by 198, 153 and 171 ms, respectively, compared with raw DAP-4. The catalytic decomposition and combustion mechanism of DAP-4/NiO composite was proposed. It was essential to master further the catalytic characteristics of nano-oxidants on molecular perovskite energetic materials.