Design and synthesis of TiO2/Co/carbon nanofibers with tunable and efficient electromagnetic absorption
Design and synthesis of TiO2/Co/carbon nanofibers with tunable and efficient electromagnetic absorption
复制标题
具有可调谐高效电磁吸收功能的TiO2/Co/碳纳米纤维的设计与合成
DOI：
10.1016/j.cej.2019.122591
复制
发表时间：
2020-01-15
影响因子：
15.1
通讯作者：
Liu, Jiurong
中科院分区：
文献类型：
--
作者：
Qiao, Jing;Zhang, Xue;Liu, Jiurong
碳材料被广泛用于电磁波吸收。然而，寻找一种更合理的方法来改善电磁波的吸收性能仍然值得关注。本文采用电纺碳化法制备了二氧化钛和金属钴修饰的纳米碳纤维，并对其微观形貌、结构、组成和磁性能进行了详细的表征。结果表明，制备的纳米复合材料具有最佳的电磁参数，具有优异的吸波性能。结果表明，不同填充比的TiO2/Co/CNFS样品的最小反射损耗(RL)均小于-50分贝，匹配厚度小于3.5 mm。最大有效吸收带宽(RL
Carbon materials are widely used for electromagnetic wave absorption. However, to find out a more rational approach to improve the electromagnetic (EM) wave absorption performance is still worthy of attention. In this work, the carbon nanofibers (CNFs) decorated by titanium oxide and metallic cobalt (TiO2/Co/CNFs) were synthesized by electrospinning and carbonizing process, and the microtopography, structure, composition and magnetic properties of which were characterized in detail. The TiO2/Co/CNFs nanocomposites acquired optimal electromagnetism parameters and exhibited superb electromagnetic wave absorption property. The results showed that the minimum reflection loss (RL) values of TiO2/Co/CNFs samples with different filling ratios are less than - 50 dB with the matching thickness less than 3.5 mm. The maximum effective absorption bandwidths (RL