Enhanced Microwave Absorption Properties of α-Fe2O3-Filled Ordered Mesoporous Carbon Nanorods

A novel kind of α-Fe2O3-filled ordered mesoporous carbon nanorods has been synthesized by a facial hydrothermal method. Compared with dendritic α-Fe2O3 micropines, both a broader effective absorption range—from 10.5 GHz to 16.5 GHz with reflection loss (RL) less than −10 dB—and a thinner matching thickness of 2.0 mm have been achieved in the frequency range 2–18 GHz. The enhanced microwave absorption properties evaluated by the RL are attributed to the enhanced dielectric loss resulting from the intrinsic physical properties and special structures.

[1]  Shaoli Guo,et al.  Enhanced microwave performance of highly ordered mesoporous carbon coated by Ni2O3 nanoparticles , 2012 .

[2]  Shaoli Guo,et al.  Electromagnetic and microwave-absorbing properties of highly ordered mesoporous carbon supported by gold nanoparticles , 2012 .

[3]  Shaoli Guo,et al.  Enhanced microwave absorbing properties of carbonyl iron-doped Ag/ordered mesoporous carbon nanocomposites , 2012 .

[4]  R. Che,et al.  Hierarchical magnetic yolk–shell microspheres with mixed barium silicate and barium titanium oxide shells for microwave absorption enhancement , 2012 .

[5]  Hong Bi,et al.  Enhanced microwave absorption property of bowl-like Fe3O4 hollow spheres/reduced graphene oxide composites , 2012 .

[6]  Chenghua Sun,et al.  Synthesis and electromagnetic, microwave absorbing properties of core-shell Fe3O4-poly(3, 4-ethylenedioxythiophene) microspheres. , 2011, ACS applied materials & interfaces.

[7]  K. J. Vinoy,et al.  Radar Absorbing Materials: From Theory to Design and Characterization , 2011 .

[8]  Bingqing Wei,et al.  Hierarchical Dendrite-Like Magnetic Materials of Fe3O4, γ-Fe2O3, and Fe with High Performance of Microwave Absorption , 2011 .

[9]  Wancheng Zhou,et al.  Epoxy-silicone filled with multi-walled carbon nanotubes and carbonyl iron particles as a microwave absorber , 2010 .

[10]  Tao Wang,et al.  Direct Incorporation of Magnetic Constituents within Ordered Mesoporous Carbon−Silica Nanocomposites for Highly Efficient Electromagnetic Wave Absorbers , 2010 .

[11]  Yuan-Yao Li,et al.  High Electromagnetic Wave Absorption Performance of Silicon Carbide Nanowires in the Gigahertz Range , 2010 .

[12]  M. Cao,et al.  Porous Fe3O4/Carbon Core/Shell Nanorods: Synthesis and Electromagnetic Properties , 2009 .

[13]  Jae-Hung Han,et al.  Application of MWNT-added glass fabric/epoxy composites to electromagnetic wave shielding enclosures , 2007 .

[14]  L. Deng,et al.  Microwave absorbing performances of multiwalled carbon nanotube composites with negative permeability , 2007 .

[15]  T. C. Shami,et al.  Carbon fiber and nanotube based composites with polypyrrole fabric as electromagnetic absorbers , 2004 .

[16]  I. Huynen,et al.  Magnetic photonic band-gap material at microwave frequencies based on ferromagnetic nanowires , 2003 .

[17]  Sahrim Ahmad,et al.  Electromagnetic and absorption properties of some microwave absorbers , 2002 .

[18]  K. Hatakeyama,et al.  Frequency dispersion and temperature variation of complex permeability of Ni‐Zn ferrite composite materials , 1995 .

[19]  A. M. Nicolson,et al.  Measurement of the Intrinsic Properties of Materials by Time-Domain Techniques , 1970 .

[20]  K. Suetake,et al.  Application of Ferrite to Electromagnetic Wave Absorber and its Characteristics , 1970 .