Pyrrole-added Fe2O3 films by ultrasonic spray pyrolisis



Título del documento: Pyrrole-added Fe2O3 films by ultrasonic spray pyrolisis
Revista: Superficies y vacío
Base de datos: PERIÓDICA
Número de sistema: 000365423
ISSN: 1665-3521
Autores: 1
1
Instituciones: 1Instituto Politécnico Nacional, Centro de Investigación y de Estudios Avanzados, México, Distrito Federal. México
Año:
Periodo: Dic
Volumen: 22
Número: 4
Paginación: 15-19
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés Fe2O3 thin films were grown by Ultrasonic Spray Pyrolisis from a 0.05 aqueous solution of FeCl3 added with a small amount of pyrrole monomer. Films at different substrate temperature and pyrrole content were grown. They were characterized by using x–ray diffraction (XRD), infrared spectroscopy (FTIR) and atomic force microscopy (AFM). Results indicated that at low substrate temperature (approximately < 200°C) the films mainly resemble the polypyrrole structure. At higher temperatures up to 400°C the trend is to form the hematite phase (Fe2O3) of iron oxide. Furthermore, the surface morphology exhibits nano–size features, which can be changed by using different pyrrole contents. This last feature could be useful for usage of the film as a gas sensor
Disciplinas: Ingeniería
Palabras clave: Ingeniería de materiales,
Películas compuestas,
Oxido de hierro,
Polipirrol,
Pirólisis
Keyword: Engineering,
Materials engineering,
Composite films,
Iron oxide,
Polypyrrole,
Pyrolysis
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