Work

Non‐Bonded Interaction Driven Morphology Evolution of CuMOF@MXene Energetic Composites: Synergistic Optimization of Thermal Stability and Combustion Performance

Year: 2025

Type: article

Abstract: Hybrid materials with tunable properties, particularly metal‐organic frameworks (MOFs)@MXene composites have emerged as a cutting‐edge research focus different applications. In this study, a novel energetic CuMOF composed of Cu 2+ and 3‐(tetrazol‐5‐yl) triazole is synthesized, followed by the development of CuMOF@MXene composites (CuMOF@MX x ) via a facile one‐step hydrothermal method. This approach leverages the interfacial “Ti─O···Cu” non‐bonded interactions to achieve composites with diverse morphologies. Subsequently, both experiments and theoretical calculations verify the presence of these non‐bonded interactions and their influence on morphology, thermal property, and combustion performance of the composites. The morphologies of composites transition from a flower‐like structure to a spherical shape with the addition of Ti 3 C 2 T x MXene. Furthermore, simultaneous thermogravimetry‐differential scanning calorimetry tests, along with non‐isothermal kinetic analysis, indicate that CuMOF@MX 4 has a higher initial temperature of 354.2 °C for runaway reaction and a larger activation energy of 211.58 kJ mol −1 , compared to CuMOF (314.9 °C and 202.56 kJ mol −1 ). In addition, the combustion tests demonstrate that CuMOF@MX x exhibit more intense and rapid combustion. This work demonstrates the critical role of the non‐bonded interaction between CuMOF and Ti 3 C 2 T x interfaces in regulating the structure and properties of the composites, and the possible mechanism of this process is also elucidated.

Source: Advanced Science

DOI: 10.1002/advs.202508755