石墨烯/SnO_2纳米纤维复合材料的制备及吸波性能的研究
|
摘要
采用静电纺丝、超声混合和热处理等方法制备石墨烯/SnO_2纳米纤维复合材料,然后使用X射线衍射(XRD)、电子显微镜(SEM/TEM)和矢量网络分析仪(VNA)等设备对其微观结构和吸波性能进行表征。结果表明:当厚度为3.0mm时,石墨烯/SnO_2纳米复合纤维材料在11.7GHz频率下的反射损耗(RL)可以达到极值-48.1dB,且低于-10dB的频宽可以达到6.1GHz。由于RL值低于-10dB,表示超过90%的入射电磁波可以被吸收,故石墨烯/SnO_2纳米纤维复合材料具有较好的吸波性能。
Graphene/SnO_2 nanofiber hybrids have been successfully fabricated by electrospinning,ultrasonic mixing and heat treatment,etc.,and then characterized by X-ray diffraction(XRD),electron microscopy(SEM/TEM)and vector network analyzer(VNA).The experiments show that when the thickness is 3.0 mm,the reflection loss(RL)of the graphene/SnO_2 nanofiber hybrids reaches -48.1 dB at 11.7 GHz,and the absorption bandwidth with reflection loss exceeding -10 dB is 6.1 GHz.It suggests that graphene/SnO_2 nanofiber hybrids present potential in the field of microwave absorption materials.
Graphene/SnO_2 nanofiber hybrids have been successfully fabricated by electrospinning,ultrasonic mixing and heat treatment,etc.,and then characterized by X-ray diffraction(XRD),electron microscopy(SEM/TEM)and vector network analyzer(VNA).The experiments show that when the thickness is 3.0 mm,the reflection loss(RL)of the graphene/SnO_2 nanofiber hybrids reaches -48.1 dB at 11.7 GHz,and the absorption bandwidth with reflection loss exceeding -10 dB is 6.1 GHz.It suggests that graphene/SnO_2 nanofiber hybrids present potential in the field of microwave absorption materials.
引文
[1]Wu H,Wu G,Ren Y,et al.Co2+/Co3+ratio dependence of electromagnetic wave absorption in hierarchical NiCo2O4-CoNiO2hybrids[J].Journal of Materials Chemistry C,2015,3(29):7677.
[2]Liu P,Yao Z,Zhou J.Preparation of reduced graphene oxide/Ni0.4Zn0.4Co0.2Fe2O4nanocomposites and their excellent microwave absorption properties[J].Ceramics International,2015,41(10):13409.
[3]Tian C H,Du Y C,Xu P,et al.Constructing uniform coreshell PPy@PANI composites with tunable shell thickness toward enhancement in microwave absorption[J].ACS Applied Materials&Interfaces,2015,7(36):20090.
[4]张雪峰,李哲男,王威娜,等.磁性Fe、Co、Ni纳米粒子的吸波性能研究[J].粉末冶金工业,2006,16(1):11.
[5]刘开煌,李德仁,刘天成,等.扁平型铁基非晶粉末的取向对吸波材料电磁性能的影响[J].金属功能材料,2010,17(5):1.
[6]邓联文,江建军,范少春,等.非晶态CoFeZr合金的制备及其微波吸收性能研究[J].金属功能材料,2003,10(5):9.
[7]Ding X,Huang Y,Wang J.Synthesis of FeNi3nanocrystals encapsulated in carbon nanospheres/reduced graphene oxide as a light weight electromagnetic wave absorbent[J].Rsc Advances,2015,5(80):64878.
[8]Zong M,Huang Y,Zhao Y,et al.Facile preparation,high microwave absorption and microwave absorbing mechanism of RGO-Fe3O4composites[J].RSC Advances,2013,3(45):23638.
[9]赵存树,王福,郝斌.氧化石墨烯/氧化铕复合粉体的制备及性能研究[J].粉末冶金工业,2017,27(3):11.
[10]Sun D,Zou Q,Qian G,et al.Controlled synthesis of porous Fe3O4-decorated graphene with extraordinary electromagnetic wave absorption properties[J].Acta Materialia,2013,61(15):5829.
[11]Longgang Y,Jianbo W,Xianghua H,et al.Enhanced microwave absorption of Fe nanoflakes after coating with SiO2nanoshell[J].Nanotechnology,2010,21(9):095708.
[12]Zhu Z T,Sun X,Li G X,et al.Microwave-assisted synthesis of graphene-Ni composites with enhanced microwave absorption properties in Ku-band[J].Journal of Magnetism and Magnetic Materials,2015,377(3):95.
[13]Lin L,Xing H,Shu R,et al.Preparation and microwave absorption properties of multi-walled carbon nanotubes decorated with Ni-doped SnO2nanocrystal[J].RSC Adv.2015:115(10):94539.
[14]Zhao B,Fan B,Shao G,et al.Facile synthesis of novel heterostructure based on SnO2nanorods grown on submicron Ni walnut with tunable electromagnetic wave absorption capabilities[J].Acs Applied Materials&Interfaces,2015,7(33):18815.
[15]Wang Y,Peng Z,Jiang W.Controlled synthesis of Fe3O4@SnO2/RGO nanocomposite for microwave absorption enhancement[J].Ceramics International,2016,42(9):10682.
[16]Deng D,Pan X,Yu L,et al.Toward N-doped graphene via solvothermal synthesis[J].Chemistry of Materials,2011,23(5):1188.
[17]宋鑫华,闫鸿浩,马征征,等.基于传输线理论的电磁波反射系数正交分析[J].研究简报-物理学,2018,12(1):348.
[18]吴锵,黄洁雯,唐国栋.材料物理基础[C].北京:国防工业出版社,2016.
[2]Liu P,Yao Z,Zhou J.Preparation of reduced graphene oxide/Ni0.4Zn0.4Co0.2Fe2O4nanocomposites and their excellent microwave absorption properties[J].Ceramics International,2015,41(10):13409.
[3]Tian C H,Du Y C,Xu P,et al.Constructing uniform coreshell PPy@PANI composites with tunable shell thickness toward enhancement in microwave absorption[J].ACS Applied Materials&Interfaces,2015,7(36):20090.
[4]张雪峰,李哲男,王威娜,等.磁性Fe、Co、Ni纳米粒子的吸波性能研究[J].粉末冶金工业,2006,16(1):11.
[5]刘开煌,李德仁,刘天成,等.扁平型铁基非晶粉末的取向对吸波材料电磁性能的影响[J].金属功能材料,2010,17(5):1.
[6]邓联文,江建军,范少春,等.非晶态CoFeZr合金的制备及其微波吸收性能研究[J].金属功能材料,2003,10(5):9.
[7]Ding X,Huang Y,Wang J.Synthesis of FeNi3nanocrystals encapsulated in carbon nanospheres/reduced graphene oxide as a light weight electromagnetic wave absorbent[J].Rsc Advances,2015,5(80):64878.
[8]Zong M,Huang Y,Zhao Y,et al.Facile preparation,high microwave absorption and microwave absorbing mechanism of RGO-Fe3O4composites[J].RSC Advances,2013,3(45):23638.
[9]赵存树,王福,郝斌.氧化石墨烯/氧化铕复合粉体的制备及性能研究[J].粉末冶金工业,2017,27(3):11.
[10]Sun D,Zou Q,Qian G,et al.Controlled synthesis of porous Fe3O4-decorated graphene with extraordinary electromagnetic wave absorption properties[J].Acta Materialia,2013,61(15):5829.
[11]Longgang Y,Jianbo W,Xianghua H,et al.Enhanced microwave absorption of Fe nanoflakes after coating with SiO2nanoshell[J].Nanotechnology,2010,21(9):095708.
[12]Zhu Z T,Sun X,Li G X,et al.Microwave-assisted synthesis of graphene-Ni composites with enhanced microwave absorption properties in Ku-band[J].Journal of Magnetism and Magnetic Materials,2015,377(3):95.
[13]Lin L,Xing H,Shu R,et al.Preparation and microwave absorption properties of multi-walled carbon nanotubes decorated with Ni-doped SnO2nanocrystal[J].RSC Adv.2015:115(10):94539.
[14]Zhao B,Fan B,Shao G,et al.Facile synthesis of novel heterostructure based on SnO2nanorods grown on submicron Ni walnut with tunable electromagnetic wave absorption capabilities[J].Acs Applied Materials&Interfaces,2015,7(33):18815.
[15]Wang Y,Peng Z,Jiang W.Controlled synthesis of Fe3O4@SnO2/RGO nanocomposite for microwave absorption enhancement[J].Ceramics International,2016,42(9):10682.
[16]Deng D,Pan X,Yu L,et al.Toward N-doped graphene via solvothermal synthesis[J].Chemistry of Materials,2011,23(5):1188.
[17]宋鑫华,闫鸿浩,马征征,等.基于传输线理论的电磁波反射系数正交分析[J].研究简报-物理学,2018,12(1):348.
[18]吴锵,黄洁雯,唐国栋.材料物理基础[C].北京:国防工业出版社,2016.