Engaging Two Anions with Single Cation in Energetic Salts: Approach for Optimization of Oxygen Balance in Energetic Materials DOI
Prachi Bhatia, Priyanka Das, Dheeraj Kumar

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(47), P. 64846 - 64857

Published: Nov. 12, 2024

The field of high energy density materials faces a long-standing challenge to achieve an optimum balance between and stability. While energetic salt formation via combination oxygen- nitrogen-rich anions (providing energy) with nitrogen-containing cations stability) has been proven approach for improving physical stability, constraints such as lowering performance remain unresolved. This can be addressed by utilizing oxygen-containing formation. However, this is rarely explored because its synthesis challenging. In work, we have designed oxygen-rich cationic precursor

Language: Английский

Intramolecular Cyclization and Energetic Group Modifications for Thermally Stable and Low-Sensitivity Monocyclic Dinitromethyl Zwitterionic Pyrazoles DOI
Changlin Zhou,

Qingshan Xie,

Junqi Wang

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

Zwitterionic energetic materials offer a unique combination of high performance and stability, yet their synthesis stability enhancement remain key challenges. In this study, we report the highly stable (dinitromethyl-functionalized zwitterionic compound, 1-(amino(iminio)methyl)-4,5-dihydro-1H-pyrazol-5-yl)dinitromethanide (4), with thermal decomposition temperature 215 °C, surpassing that most previously reported monocyclic zwitterions (Td < 150 °C). This compound was synthesized via intramolecular cyclization trinitromethyl-functionalized hydrazone precursor. Further chemical modifications, including nitration fluorination, enabled zwitterion-to-zwitterion transformations, resulting in formation nitramines 10 12. Additionally, perchlorate salt (8) 4 synthesized, along ammonium (13), guanidinium (14), potassium (15) salts derived from 10, all retaining properties. Physicochemical evaluations reveal zwitterion 12 exhibits excellent = 181 °C) an optimal balance between energy output (detonation velocity: 8329 m s-1, detonation pressure: 29.4 GPa) reduced sensitivity (impact sensitivity: 35 J, friction 320 N). Notably, 15 demonstrates superior 233 °C), exceeding RDX. These results expand design framework for contribute to development high-energy, low-sensitivity materials.

Language: Английский

Citations

0
Engaging Two Anions with Single Cation in Energetic Salts: Approach for Optimization of Oxygen Balance in Energetic Materials DOI
Prachi Bhatia, Priyanka Das, Dheeraj Kumar

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(47), P. 64846 - 64857

Published: Nov. 12, 2024

The field of high energy density materials faces a long-standing challenge to achieve an optimum balance between and stability. While energetic salt formation via combination oxygen- nitrogen-rich anions (providing energy) with nitrogen-containing cations stability) has been proven approach for improving physical stability, constraints such as lowering performance remain unresolved. This can be addressed by utilizing oxygen-containing formation. However, this is rarely explored because its synthesis challenging. In work, we have designed oxygen-rich cationic precursor

Language: Английский

Citations

2