Preparation and performance evaluation of stabilized porous silicon and its composite energy-containing materials based on stabilization

• 1、School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400000, China

Abstract：Porous silica-based nanoenergy-containing materials have become a research hotspot in the field of energy-containing materials due to their unique energy-releasing properties, and electrochemical anodic oxidation technology has been widely used to prepare porous silica substrates, but its tendency to react with oxygen in air leads to a serious limitation on the practical application of the materials. In this paper, two stabilization treatment schemes, cathodic reduction method and anodic oxidation method, are used to observe and study using scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR), fiber optic spectrometer and high-speed camera. The experiments show that: (1) after 5 months of air storage, the surface pore structure retention rate of the two stabilized treatments of porous silicon is enhanced by more than 40% compared with the untreated specimen; (2) FTIR analysis confirms that the stabilized treatments effectively inhibit the oxidation reaction, and the surface hydroxyl content is ranked as anodic oxidation anodic oxidation > unstabilized.

Keywords： Porous silicon stabilisation composite energy-containing materials storage stability explosive properties