Abstract In this work, to meet the comprehensive demands for efficiency and lightweight electromagnetic wave absorption (EWA) material, boron nitride/reduced graphene oxide (BN/RGO) nanocomposites were prepared via a one-step thermal nitridation process. The insulative BN component in the obtained nano BN/RGO hybrids realized the regulation of conductivity and thus impedance matching, and the large interface area of the hybrids facilitated the high-frequency polarization effect and contributed to the enhanced EWA performance. Remarkably, the EWA performance of optimized BN/RGO hybrids reached a strong reflection loss (RL) of −48.9 dB in a broad effective absorption bandwidth of 4.2 GHz with a low filler content of 3.0 wt. % and at a thin thickness of 2.6 mm, which well outperforms that of most other reported dielectric absorption materials. Our results may light a new way on introducing light element component to produce high-efficiency RGO-based EWA materials with facile and low-cost production process.

中文翻译：

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同时增强阻抗匹配和 BN/RGO 纳米复合材料的吸收行为以提高微波吸收效率

摘要 在这项工作中，为了满足对效率和轻质电磁波吸收 (EWA) 材料的综合需求，通过一步热氮化工艺制备了氮化硼/还原氧化石墨烯 (BN/RGO) 纳米复合材料。所得纳米BN/RGO杂化物中的绝缘BN组分实现了电导率的调节和阻抗匹配，杂化物的大界面面积有利于高频极化效应，有助于增强EWA性能。值得注意的是，优化的 BN/RGO 混合材料的 EWA 性能在 4.2 GHz 的宽有效吸收带宽内达到了 -48.9 dB 的强反射损耗（RL），并且填料含量为 3.0 wt%。% 和 2.6 毫米的薄厚度，这远远优于大多数其他报道的介电吸收材料。