A Facile-Synthesized Dual-Network Multi-Ionic Integrated Explosive with Enhanced Detonation Performance and Promoted Aluminum Reactivity

Perovskite-type (ABX 3 ) oxidizer-fuel-integrated structures have been employed as a reliable platform for one-pot non-covalent assembly of emerging multi-ionic integrated explosives (MIXs) directly from non-energetic organics. Exploring non-perovskite structures to overcome the stoichiometric bottleneck is critical for unlocking design flexibility of these emerging materials, yet remains challenging without guiding principles. Herein, we propose a “interpenetrating dual networks” strategy to design a groundbreaking MIX, (H 2 eda) 2 (NH 4 )(ClO 4 ) 5 (EAP-4, H 2 eda 2+  = ethane-1,2-diaminium). In EAP-4, a scheelite-type network, where NH 4 + and ClO 4 − occupy special positions, interpenetrates with its fluorite-type counterpart (H 2 eda 2+ and the remaining ClO 4 − ions), forming a non-perovskite I 4 1 / a structure. This unique structural feature endows EAP-4 with exceptional positive oxygen balance based on CO 2 (+6.3 %, surpassing all known energetic perovskites), high synthesis efficiency (achieving over 70 % yield within 10 mins), and a high crystal density of 1.912 g·cm −3 . This innovative design establishes EAP-4 as a dual-function material: (1) an explosive with superior synthesis scalability and higher detonation capability than the widely used military explosive cyclotrimethylenetrinitramine (RDX); (2) a solid oxidizer with 24.5-fold higher thermal decomposition efficiency and significantly greater aluminum reactivity compared to the benchmark oxidizer ammonium perchlorate (AP). This work not only provides a non-perovskite paradigm for tuning energetic materials but also facilitates the systematic development of multi-ionic hybrid materials.