Chemically driven energetic molecular ferroelectrics.

ABSTRACT: Chemically driven thermal wave triggers high energy release rate in covalently-bonded molecular energetic materials. Molecular ferroelectrics bridge thermal wave and electrical energy by pyroelectric associated with heating frequency, thermal mass and heat transfer. Herein we design energetic molecular ferroelectrics consisting of imidazolium cations (energetic ion) and perchlorate anions (oxidizer), and describe its thermal wave energy conversion with a specific power of 1.8 kW kg^-1. Such a molecular ferroelectric crystal shows an estimated detonation velocity of 7.20 ± 0.27 km s^-1 comparable to trinitrotoluene and hexanitrostilbene. A polarization-dependent heat transfer and specific power suggests the role of electron-phonon interaction in tuning energy density of

SUBMITTER: Hu Y 

PROVIDER: S-EPMC8481480 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature