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首页> 外文期刊>Nanotechnology >Host-guest energetic nanocomposites based on self-assembly of multi-nitro organic molecules in nanochannels of mesoporous materials
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Host-guest energetic nanocomposites based on self-assembly of multi-nitro organic molecules in nanochannels of mesoporous materials

机译：基于中孔材料纳米通道中多硝基有机分子自组装的客体含能纳米复合材料

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Host-guest energetic nanocomposites have been synthesized by self-assembly of the high energy density compound HNIW in nanometer-scale channels of an ordered mesoporous material SBA-15. The complete impregnation of HNIW can be achieved in acetone solvent at ambient temperature, and the maximum amount was around 70wt%. Structural characterizations were systematically provided by XRD, TEM, N_2 adsorption, TG, ~(13C) solid-state NMR and FT-IR. The tendency of multi-nitro organic molecules to self-assemble when the solvent evaporated has been described. Hydrogen bond interactions were considered as the main driving force, so the choices of matched host matrix and guest organic compounds were pivotal for implementing this process. The thermal properties of nanocomposites were measured by DSC analysis. Compared with pure HNIW and a physical mixture, the decomposition peak temperature of the confined crystals decreased about 11 °C, while the total amount of heat released slightly increased. This strategy can also be expanded to other similar host-guest systems
机译：通过在有序介孔材料SBA-15的纳米级通道中自组装高能密度化合物HNIW，合成了客体-客体高能纳米复合材料。 HNIW的完全浸渍可在环境温度下的丙酮溶剂中完成，最大用量约为70wt％。通过XRD，TEM，N_2吸附，TG，〜（13C）固态NMR和FT-IR系统地提供了结构表征。已经描述了当溶剂蒸发时多硝基有机分子自组装的趋势。氢键相互作用被认为是主要驱动力，因此选择匹配的基质和客体有机化合物对于实施该过程至关重要。纳米复合材料的热性质通过DSC分析测量。与纯HNIW和物理混合物相比，受限晶体的分解峰值温度降低了约11°C，而释放的总热量略有增加。该策略也可以扩展到其他类似的主机系统

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