Lattice fluorination-enabled programmable energetics in metastable intermolecular composites: Atomic F/O engineering and hierarchical redox control enabling instantaneous memory chip destruction
Li J. Liu X. Ming Z. Jia Y. Sun J. Yao Y. Xie Q. Shen Y. Zhao Z. Yin G. Tursynbek S. Nazhipkyzy M. Tauanov Z. Bakkara A. Seitzhanova M.
2025KeAi Communications Co.
Defence Technology
2025
As a prototypical high-energy-density reactive material system, metastable intermolecular composites (MICs) have attracted considerable interest owing to their customizable component configurations and interfacial architectures. Nevertheless, their energy release characteristics are fundamentally constrained by the formation of condensed-phase products with elevated boiling points, thereby diminishing their efficacy in applications requiring rapid pressure generation or shock wave propagation. Herein, we demonstrate a molecular-level fluorination approach that enables oxygen substitution by fluorine within bismuth oxide crystalline frameworks, yielding ternary BixOyFz crystals with atomically precise F/O stoichiometric control through systematic solvent polarity engineering. This energetics system, designed through a multilevel regulation strategy, realizes stepwise redox reactions of Al–F and Al–O during energy release, with the partitioning between these redox pathways being precisely allocable through hierarchical regulation. Furthermore, the pre-ignition reaction (PIR) between BixOyFz and Al2O3 (the inert passivation shell of Al) weakens the passivation layer, lowering the ignition threshold. The in situ generation of low-boiling-point AlF3 promotes rapid gas expansion, leading to significantly enhanced pressurization rates and deflagration wave velocities under confinement compared to conventional strategies. To evaluate energy output capabilities and validate potential safety-protection applications, the system successfully achieved instantaneous destruction of SD chips, enabling secure data erasure. This work establishes crystalline lattice fluorination as a generalized materials design strategy to transcend intrinsic limitations of MICs systems in component selection and reaction thermodynamics, providing new paradigms for adaptive energetic architectures and transient microelectromechanical applications.
Combustion mechanism , Metastable intermolecular composites , Molecular fluorination design , Nano-structured energetic materials , Pre-ignition reaction
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State Key Laboratory of Precision Blasting, Jianghan University, Wuhan, 430056, China
Hubei Key Laboratory of Blasting Engineering, Jianghan University, Wuhan, 430056, China
Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
State Key Laboratory of Precision Blasting
Hubei Key Laboratory of Blasting Engineering
Al-Farabi Kazakh National University
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026