ABSTRACT Aluminium oxide (Al 2 O 3 , alumina) is a widely studied metal oxide with applications in adsorption, sensing, and catalysis; however, many conventional synthesis routes are energy‐intensive and environmentally unfriendly. In this study, Al 2 O 3 nanoparticles were synthesized via a novel green route using lemon peel extract as a natural reducing and stabilizing agent. The obtained Al 2 O 3 nanoparticles were preliminarily evaluated as catalytic additives in the thermal decomposition of the insensitive energetic material 5‐nitro‐1,2,4‐triazol‐3‐one (NTO). Their effect was compared with that of commercially available micron‐sized Al 2 O 3 to assess the influence of particle size. Binary mixtures of NTO with nano‐ and micron‐sized alumina were prepared at selected weight ratios and examined by differential scanning calorimetry (DSC). The preliminary DSC results indicate a shift of the NTO decomposition peak toward lower temperatures in the presence of alumina, with a more pronounced effect observed for the Al 2 O 3 nanoparticles. These findings suggest that green‐synthesized Al 2 O 3 nanoparticles may influence the thermal decomposition behavior of NTO and suggest further systematic kinetic investigations.
Atceken et al. (Thu,) studied this question.