Large-scale synthesis of monodispersed Si–B–N–O doped carbon hollow cages with microwave absorption property
Large-scale synthesis of monodispersed Si–B–N–O doped carbon hollow cages with microwave absorption property
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DOI：
10.1016/j.materresbull.2015.08.003
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发表时间：
2015-12
影响因子：
5.4
通讯作者：
Tao Zhang;B. Zhong;L. Xia;G. Wen
中科院分区：
文献类型：
--
作者：
Tao Zhang;B. Zhong;L. Xia;G. Wen
本文提出了一种在硅片上采用单一前驱体聚合和热解相结合的方法，大规模制备了单分散Si-B-N-O掺杂的碳空心笼。产物具有中空结构（直径2-3 μm），球形壁上具有纳米孔，组成为Si0.03B0.1N0.03O0.04C0.8。该产品在12.0 GHz下的最小反射损耗为-40.9 dB（在3.8-17.5 GHz的很宽范围内获得有效反射值），表明是一种新型高品质的微波吸收剂。
A novel method, combining polymerization and pyrolysis of single precursor on a silicon wafer, has been developed to synthesize monodispersed and Si–B–N–O doped carbon hollow cages in large-scale. The products have hollow architectures (2–3 μm in diameter) with nano-pores on the spherical walls and a composition of Si0.03B0.1N0.03O0.04C0.8. The products exhibit the minimum reflection loss of −40.9 dB at 12.0 GHz (the effective reflection values are obtained in a very wide range of 3.8–17.5 GHz) suggesting a new and high quality microwave absorbent.