Polyaniline nanofibers supported on titanium as templates for immobilization of Pd nanoparticles: A new electro-catalyst for hydrazine oxidation

• Published in: Journal of applied polymer science Vol. 124; no. 6; pp. 4671 - 4677
• Main Authors: Hosseini, M. G., Zeynali, S., Momeni, M. M., Najjar, R.
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 15-06-2012; Wiley; Wiley Subscription Services, Inc
• Subjects: Applied sciences; Catalysis; Catalysts; Composites; conducting polymers; direct hydrazine fuel cells; electro-polymerization; Electrodes; Exact sciences and technology; Fibers and threads; Forms of application and semi-finished materials; Hydrazines; Materials science; Oxidation; Palladium; palladium nanoparticles; polyaniline; Polyanilines; Polymer industry, paints, wood; Polymers; Technology of polymers; Titanium; Synthetic fiber; Aromatic polymer; Nanofiber; Electrochemical polymerization; Composite material; Electrocatalysis; Polymeric catalyst; direct hydrazine fuel cells; Titanium; electro-polymerization; palladium nanoparticles; Nanocomposite; Oxidation; polyaniline; Hydrazine; Fuel cell; Aniline polymer; Palladium; Experimental study; Metal particle; Conducting polymers; Electrochemical properties; Morphology; Catalyst activity; Electroless plating
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/app.35506

Palladium nanoparticles (Pd‐NPs)/polyaniline (PAni)/titanium (Ti) catalysts were prepared using electroless deposition of Pd‐NPs on PAni matrixes coated on Ti substrate. PAni/Ti electrodes were synthesized by electro‐polymerization of aniline on Ti. The morphology of Pd‐NPs on PAni/Ti electrodes were characterized by scanning electron microscopy technique and results indicated that Pd‐NPs were uniformly dispersed on the surface of PAni film. The electro‐catalytic properties of Pd‐NPs/PAni/Ti catalysts toward oxidation of hydrazine were investigated by different electrochemical methods and results showed that Pd‐NPs/PAni/Ti catalysts have high electrochemical activity. In addition, the mechanism of hydrazine electrochemical oxidation catalyzed by Pd‐NPs/PAni/Ti was investigated. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011