TY - JOUR
T1 - Preparation and electromagnetic properties of Polyaniline(polypyrrole)- BaFe 12 O 19 /Ni 0.8 Zn 0.2 Fe 2 O 4 ferrite nanocomposites
AU - Wang, Yan
AU - Huang, Ying
AU - Wang, Qiufen
AU - He, Qian
AU - Chen, Lin
PY - 2012/10/15
Y1 - 2012/10/15
N2 - The nanocomposite of hard (BaFe 12 O 19 )/soft ferrite (Ni 0.8 Zn 0.2 Fe 2 O 4 ) was prepared by the sol-gel process, and then the polyaniline(PANI)/polypyrrole(PPY)-BaFe 12 O 19 /Ni 0.8 Zn 0.2 Fe 2 O 4 was produced by in situ polymerization method. The structures, morphology and electromagnetic properties of the samples were characterized by various instruments. XRD, TEM, and FTIR analysis indicated that BaFe 12 O 19 /Ni 0.8 Zn 0.2 Fe 2 O 4 ferrite were homogenously enwrapped by PANI(PPY) coating. The VSM and SDY-4 measurement show that the magnetic properties of the composites decreased with the increase in PANI(PPY) amount, However, the electrical conductivity is on the contrary. The electromagnetic properties of the composites were much better than BaFe 12 O 19 /Ni 0.8 Zn 0.2 Fe 2 O 4 in the frequency range of 2-15 GHz, which mainly depends on the dielectric loss of PANI(PPY). A minimum reflection loss of the PANI(PPY)-BaFe 12 O 19 /Ni 0.8 Zn 0.2 Fe 2 O 4 ferrite nanocomposite is -19.7 dB(-21.5 dB) at the frequency of 7.3 GHz (10.7 GHz).
AB - The nanocomposite of hard (BaFe 12 O 19 )/soft ferrite (Ni 0.8 Zn 0.2 Fe 2 O 4 ) was prepared by the sol-gel process, and then the polyaniline(PANI)/polypyrrole(PPY)-BaFe 12 O 19 /Ni 0.8 Zn 0.2 Fe 2 O 4 was produced by in situ polymerization method. The structures, morphology and electromagnetic properties of the samples were characterized by various instruments. XRD, TEM, and FTIR analysis indicated that BaFe 12 O 19 /Ni 0.8 Zn 0.2 Fe 2 O 4 ferrite were homogenously enwrapped by PANI(PPY) coating. The VSM and SDY-4 measurement show that the magnetic properties of the composites decreased with the increase in PANI(PPY) amount, However, the electrical conductivity is on the contrary. The electromagnetic properties of the composites were much better than BaFe 12 O 19 /Ni 0.8 Zn 0.2 Fe 2 O 4 in the frequency range of 2-15 GHz, which mainly depends on the dielectric loss of PANI(PPY). A minimum reflection loss of the PANI(PPY)-BaFe 12 O 19 /Ni 0.8 Zn 0.2 Fe 2 O 4 ferrite nanocomposite is -19.7 dB(-21.5 dB) at the frequency of 7.3 GHz (10.7 GHz).
KW - Electromagnetic properties
KW - In situ polymerization
KW - Polyaniline
KW - Polypyrrole
UR - http://www.scopus.com/inward/record.url?scp=84866043044&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2012.07.072
DO - 10.1016/j.apsusc.2012.07.072
M3 - 文章
AN - SCOPUS:84866043044
SN - 0169-4332
VL - 259
SP - 486
EP - 493
JO - Applied Surface Science
JF - Applied Surface Science
ER -