TY - JOUR
T1 - Designing energetic covalent organic frameworks for stabilizing high-energy compounds
AU - Shi, Yansong
AU - Song, Jian
AU - Cui, Fengchao
AU - Duli, Xiaosong
AU - Tian, Yuyang
AU - Jin, Shaohua
AU - Shu, Qinghai
AU - Zhu, Guangshan
N1 - Publisher Copyright:
© 2022, Tsinghua University Press.
PY - 2023/1
Y1 - 2023/1
N2 - As an emerging high-energy compound, 3-nitro-1,2,4-triazol-5-one (NTO) is used in military explosives and rocket propellants. However, the strong acidic corrosion of NTO, and the high sensitivity and poor thermostability of its salts, severely restrict their practical applications. Therefore, a novel strategy to design and construct energetic covalent organic frameworks (COFs) is proposed in this study. We have successfully prepared a two-dimensional crystalline energetic COF (named ECOF-1) assembled from triaminoguanidine salt, in which NTO anions are trapped in the porous framework via the ionic interaction and hydrogen bonds. The results show that ECOF-1 exhibits superior thermal stability than energetic salt of NTO. It also exhibits insensitivity and excellent heat of detonation of 7,971.71 kJ·kg−1. ECOF-1 greatly inhibits the corrosiveness of NTO. In prospect, energetic COFs are promising as a functional platform to design high-energy and insensitive energetic materials.[Figure not available: see fulltext.]
AB - As an emerging high-energy compound, 3-nitro-1,2,4-triazol-5-one (NTO) is used in military explosives and rocket propellants. However, the strong acidic corrosion of NTO, and the high sensitivity and poor thermostability of its salts, severely restrict their practical applications. Therefore, a novel strategy to design and construct energetic covalent organic frameworks (COFs) is proposed in this study. We have successfully prepared a two-dimensional crystalline energetic COF (named ECOF-1) assembled from triaminoguanidine salt, in which NTO anions are trapped in the porous framework via the ionic interaction and hydrogen bonds. The results show that ECOF-1 exhibits superior thermal stability than energetic salt of NTO. It also exhibits insensitivity and excellent heat of detonation of 7,971.71 kJ·kg−1. ECOF-1 greatly inhibits the corrosiveness of NTO. In prospect, energetic COFs are promising as a functional platform to design high-energy and insensitive energetic materials.[Figure not available: see fulltext.]
KW - 3-nitro-1,2,4-triazol-5-one (NTO)
KW - covalent organic frameworks (COFs)
KW - energetic materials
KW - high-energy insensitive materials
UR - http://www.scopus.com/inward/record.url?scp=85140821873&partnerID=8YFLogxK
U2 - 10.1007/s12274-022-4697-4
DO - 10.1007/s12274-022-4697-4
M3 - Article
AN - SCOPUS:85140821873
SN - 1998-0124
VL - 16
SP - 1507
EP - 1512
JO - Nano Research
JF - Nano Research
IS - 1
ER -
