Preparation, characterization and electromagnetic properties of polyaniline/carbon nanotubes/nickel ferrite nanocomposites

被引：19

作者：

El-Shishtawy, Reda M. ^{[1
]}

Salam, M. Abdel ^{[1
]}

Gabal, M. A. ^{[1
]}

Asiri, Abdullah M. ^{[1
,2
]}

机构：

[1] King Abdulaziz Univ, Fac Sci, Dept Chem, Jeddah 21589, Saudi Arabia

[2] King Abdulaziz Univ, Ctr Excellence Adv Mat Res, Jeddah 21589, Saudi Arabia

来源：

POLYMER COMPOSITES | 2012年 / 33卷 / 04期

关键词：

WALLED CARBON NANOTUBES; OXIDATIVE POLYMERIZATION; MICROWAVE-ABSORPTION; CONDUCTING POLYMERS; TEMPERATURE; ANILINE; FUNCTIONALIZATION; DISSOLUTION; COMPOSITES; EMERALDINE;

D O I：

10.1002/pc.22186

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

New electromagnetic nanocomposites were prepared from polyaniline (PANI)/oxidized single-walled carbon nanotubes (OxSWCNTs)/NiFe2O4 by in situ polymerization of aniline using hexanoic acid as a soft template. OxSWCNT and NiFe2O4 were prepared first so as to be used in the formulation of PANI composites. Transmission electron microscope (TEM) results revealed the formation of PANI nanoparticles of 60 nm diameter, OxSWCNT of 24 nm, and NiFe2O4 of 54 nm. Also, TEM image of the ternary composite indicated agglomerative coating of PANI appearing as a gray shells and black core of NiFe2O4 with widening the diameter of OxSWCNT to be around 66 nm. Dc conductivity was measured as a function of temperature. Magnetic susceptibility was measured as a function of temperature and magnetic field intensity. All samples revealed NiFe2O4-dependent ferromagnetism. The activation energies for dc conductivity suggest that the conductivity is owing to hopping conduction mechanism. A synergistic effect between NiFe2O4 and PANI/OxSWCNT is observed. POLYM. COMPOS.,, 2012. (c) 2012 Society of Plastics Engineers

引用

页码：532 / 539

页数：8

共 57 条

[1] Investigation of the physico-chemical properties of nanometric NiLa ferrite/PST matrix [J].

Ahmed, M. A. ;

Mansour, S. F. ;

El-Dek, S. I. .

SOLID STATE IONICS, 2010, 181 (25-26) :1149-1155

[2] Influence of yttrium ions on the magnetic properties of Ni-Zn ferrites [J].

Ahmed, MA ;

Okasha, N ;

Salah, L .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2003, 264 (2-3) :241-250

[3] Nanotubes from carbon [J].

Ajayan, PM .

CHEMICAL REVIEWS, 1999, 99 (07) :1787-1799

[4] Covalent functionalization of single-walled carbon nanotubes by aniline electrochemical polymerization [J].

Baibarac, M ;

Baltog, I ;

Godon, C ;

Lefrant, S ;

Chauvet, O .

CARBON, 2004, 42 (15) :3143-3152

[5]

Basahel S. N., 2009, INT J NANOPART, V2, P221

[6] Finite size effect and influence of temperature on electrical properties of nanocrystalline Ni-Cd ferrites [J].

Batoo, Khalid Mujasam ;

Kumar, Shalendra ;

Lee, Chan Gyu ;

Alimuddin .

CURRENT APPLIED PHYSICS, 2009, 9 (05) :1072-1078

[7] CHEMICAL TUNING OF ELECTROLUMINESCENT COPOLYMERS TO IMPROVE EMISSION EFFICIENCIES AND ALLOW PATTERNING [J].

BURN, PL ;

HOLMES, AB ;

KRAFT, A ;

BRADLEY, DDC ;

BROWN, AR ;

FRIEND, RH ;

GYMER, RW .

NATURE, 1992, 356 (6364) :47-49

[8] Carbon nanotube/CdS core-shell nanowires prepared by a simple room-temperature chemical reduction method [J].

Cao, J ;

Sun, JZ ;

Hong, J ;

Li, HY ;

Chen, HZ ;

Wang, M .

ADVANCED MATERIALS, 2004, 16 (01) :84-+

[9] Synthesis of a new polyaniline/nanotube composite:: "in-situ" polymerisation and charge transfer through site-selective interaction [J].

Cochet, M ;

Maser, WK ;

Benito, AM ;

Callejas, MA ;

Martínez, MT ;

Benoit, JM ;

Schreiber, J ;

Chauvet, O .

CHEMICAL COMMUNICATIONS, 2001, (16) :1450-1451

[10] Percolation-dominated conductivity in a conjugated-polymer-carbon-nanotube composite [J].

Coleman, JN ;

Curran, S ;

Dalton, AB ;

Davey, AP ;

McCarthy, B ;

Blau, W ;

Barklie, RC .

PHYSICAL REVIEW B, 1998, 58 (12) :R7492-R7495

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