| Ni(NO3)2浓度对Ni/还原氧化石墨微观结构及微波吸收性能的影响 |
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| 引用本文： | 祝 海,杨 丽,刘洪波,陈 惠,夏笑虹.Ni(NO3)2浓度对Ni/还原氧化石墨微观结构及微波吸收性能的影响[J].无机材料学报,2016,31(11):1223-1229. |
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| 作者姓名： | 祝 海 杨 丽 刘洪波 陈 惠 夏笑虹 |
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| 作者单位： | (湖南大学 材料科学与工程学院, 长沙 410082) |
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| 基金项目： | 湖南省科技计划(2014GK3153) Hunan Province Science and Technology Project (2014GK3153) |
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| 摘 要： | 以Ni(NO3)2为Ni源, 利用液相浸渍法在氧化石墨层间吸附Ni2+, 通过H2热还原制备出Ni/还原氧化石墨纳米复合材料。采用扫描电子显微镜(SEM)、X射线衍射仪(XRD)及网络矢量分析仪等对样品的结构及性能进行分析和表征, 研究了Ni(NO3)2浓度对材料微观形貌及电磁性能的影响。结果表明, 所制备材料为纳米级Ni颗粒与RGO的复合体, 具有优良的微波吸收性能; 当Ni(NO3)2浓度为1.5 mol/L时, 材料电磁吸收性能最佳, 在2~18 GHz频率范围内, 材料厚度为2 mm时, 反射损耗(RL)小于-5 dB的频率范围可达9 GHz, RLmax可达-40 dB。
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| 关 键 词： | Ni 氧化石墨 纳米复合材料 微波吸收 |
| 收稿时间： | 2016-01-25 |
| 修稿时间： | 2016-04-16 |
Effect of Nickel Nitrate Concentration on Microstructure and Microwave Absorbing Property of Ni/RGO Nanocomposite Material |
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| ZHU Hai,YANG Li,LIU Hong-Bo,CHEN Hui,XIA Xiao-Hong.Effect of Nickel Nitrate Concentration on Microstructure and Microwave Absorbing Property of Ni/RGO Nanocomposite Material[J].Journal of Inorganic Materials,2016,31(11):1223-1229. |
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| Authors: | ZHU Hai YANG Li LIU Hong-Bo CHEN Hui XIA Xiao-Hong |
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| Affiliation: | (College of Material Science and Engineering, Hunan University, Changsha 410082, China) |
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| Abstract: | A technique for obtaining reduced graphite oxide (RGO) with Ni nanoparticle dispersed on the surface via chemical vapor deposition (CVD) method was reported. XRD and SEM observations were carried out to confirm the microstructure of Ni/RGO composite. Magnetic property of Ni/RGO was characterized by vector network analyzer. The influence of Ni(NO3)2 concentration on micromorphology and microwave absorbing property were also discussed. As the concentration of Ni(NO3)2 is 1.5 mol/L, the range of the reflection loss (RL) less than -5 dB is 9 GHz, of which the max value reaches -40 dB. |
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| Keywords: | nickel graphite oxide nanocomposite material microwave absorbing |
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