期刊
ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 26, 页码 22545-22551出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b04317
关键词
Faraday cage; porous carbon; energetic material; electrostatic sensitivity; ignition ability
资金
- National Natural Science Foundation of China [11672040]
- State Key Laboratory of Explosion Science and Technology [YB2016-17]
- Beijing Institute of Technology Research Fund Program for Young Scholars
Research on green primary explosives with lead-free and excellent ignition performance is of significance for practical applications. In this work, we have developed a novel, green, and facile strategy for synthesizing copper azide@porous carbon hybrids (CA@PC) based on ionic cross-linked hydrogel with low-cost cellulose derivatives as the starting material, in which the CA nanoparticles are uniformly distributed in the porous carbon skeletons. The detailed characterizations and control experiments demonstrated that such an outstanding performance originates from the excellent electric conductivity of nanoscale carbon cages. With the favorable unique structures, the as-prepared hybrids can greatly benefit a new type of energetic materials, which exhibit a very low electrostatic sensitivity of 1.06 mJ. Interestingly, the hybrids possess a high ignition ability, and the flame sensitivity can even achieve 47 cm, superior to those well-developed CA-based materials reported previously. This work paves the way toward the design and development of next-generation highly efficient energetic materials.
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