Preparation and characterization of composite polyaniline materials for catalytic purposes
| Autor: | Marcela Alejandra Bavio, A.M. Castro Luna, Teresita Kessler |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
Materials science
Físico-Química Ciencia de los Polímeros Electroquímica Composite number chemistry.chemical_element Nanoparticle Carbon nanotube Catalysis law.invention Biomaterials CARBON NANOPARTICLES chemistry.chemical_compound Colloid and Surface Chemistry POLYANILINE law Polyaniline Polymer chemistry Nichrome NICHROME PLATINUM Ciencias Químicas CARBON MONOXIDE Carbon black Surfaces Coatings and Films Electronic Optical and Magnetic Materials Chemical engineering chemistry METHANOL Carbon CIENCIAS NATURALES Y EXACTAS |
| Popis: | Composite film electrodes were prepared by open-circuit Pt deposition on polymeric PANI films that were electrosynthesized from aniline acid solutions with suspended carbon particles (CPs). Gold, nickel and Ni-based alloy, Nichrome, were used as substrates, and carbon particles, carbon nanotubes (CNT) and Vulcan XC-72R carbon black, suspended in the monomer acid solution, were incorporated into the film. Pt particles were dispersed on films grown on Ni-based substrates by deposition from a Pt (IV) acid solution at open circuit (OC). CNT trapped into the PANI films have a favorable influence on Pt dispersion. The novel composite electrodes showed a significant catalytic activity for methanol oxidation. Fil: Bavio, Marcela Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ingeniería Olavarría; Argentina Fil: Kessler, Teresita. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ingeniería Olavarría; Argentina Fil: Castro Luna Berenguer, Ana Maria del Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina |
| Databáze: | OpenAIRE |
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