Fabrication and characteristics of composite containing HCl-doped polyaniline and Ni nanoparticles

• Published in: Synthetic metals Vol. 160; no. 23; pp. 2404 - 2408
• Main Authors: Liu, Rongcheng, Qiu, Hong, Li, Hui, Zong, Hua, Fang, Chunying
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01-12-2010; Elsevier
• Subjects: Applied sciences; Carrier transport; Composite; Composites; Conductivity; Deposition; Exact sciences and technology; Ferromagnetism; Forms of application and semi-finished materials; HCl-doped polyaniline; Nanoparticles; Ni nanoparticles; Nickel; Polyanilines; Polymer industry, paints, wood; Structure; Technology of polymers; Temperature dependence; Weight loss; Ni nanoparticles; Conductivity; Ferromagnetism; Composite; Structure; HCl-doped polyaniline; Electrical conductivity; Temperature effect; Compaction; Hydrochloric acid; Magnetic material; Nanocomposite; Magnetic properties; Aniline polymer; Electrical properties; Experimental study; Metal particle; Conducting polymers; Magnetization curve; Morphology; Preparation; Doped polymer; Nickel; Oxidative polymerization; Sputter deposition
• ISSN: 0379-6779; 1879-3290
• DOI: 10.1016/j.synthmet.2010.09.017

HCl-doped polyaniline powder (HCl-PANI) was synthesized using a polymerization procedure and then Ni nanoparticles were deposited on the HCl-PANI at room temperature by direct current magnetron sputtering. After this process the HCl-PANI–Ni composite was obtained. Ni nanoparticle size ranges from 5
nm to 20
nm in the composite. HCl-PANI structure is not influenced by the Ni nanoparticles. The composite pellet exhibits room temperature ferromagnetism and a conductivity of about 0.66
S/cm. A temperature dependence of the conductivity from 160
K to 290
K reveals that a carrier transport mechanism in the composite is three-dimensional variable range hopping. Thermogravimetric analysis reveals that a weight loss of the HCl-PANI–Ni composite is larger than that of the HCl-PANI for the same heating temperature. The weight loss difference between the composite and the HCl-PANI increases with increasing the temperature.