Enhanced electromagnetic wave absorption of Ni-C core-shell nanoparticles by HCP-Ni phase
Enhanced electromagnetic wave absorption of Ni-C core-shell nanoparticles by HCP-Ni phase
复制标题
HCP-Ni相增强Ni-C核壳纳米颗粒的电磁波吸收
DOI：
10.1088/2053-1591/aad661
复制
发表时间：
2018
影响因子：
2.3
通讯作者：
Song Min
中科院分区：
文献类型：
--
作者：
Kuang Daitao;Hou Lizhen;Wang Shiliang;Yu Bowen;Deng Lianwen;Lin Liangwu;Huang Han;He Jun;Song Min
相位控制策略在优化电磁波吸收性能方面发挥着重要作用。本文采用金属有机物化学气相沉积法制备了碳包覆的六方密排Ni（HCP-Ni）和面心立方Ni（FCC-Ni）两相Ni纳米粒子。Ni纳米核的平均尺寸约为10 nm，C壳的平均厚度约为4 nm。与石蜡以1：5的质量比共混后，Ni-C核壳纳米粒子表现出优异的电磁波吸收性能，最佳反射损耗为-52.6 dB，有效带宽较大，
The strategy of phase control has been playing an important role in optimizing the electromagnetic wave (EMW) absorption properties. Here, Ni nanoparticles (NPs) with two phases, hexagonal close-packed Ni (HCP-Ni) and face-centered cubic (FCC-Ni), coated by C shells are synthesized by metal-organic chemical vapor deposition. The average size of the Ni nanocores and thickness of C shells are about 10 and 4 nm, respectively. After blended with paraffin wax at a mass ratio of 1: 5, the Ni–C core–shell NPs exhibit excellent EMW absorption properties with an optimal reflection loss of− 52.6 dB and a large effective bandwidth (