Published 2016 | Version v1
Miscellaneous Open

Influence of the collector and heat treatment in the structure of BiFeO3 electrospun nanofibers

Creators

  • 1. Universidade Federal de Sao Carlos (DEMa/UFSCar). SP (Brazil). Departamento de Engenharia de Materiais

Description

The objective of this work was to analyze the influence of the collector type and heat treatment on the morphology and crystalline phases of BiFeO3 electrospun nanofibers. A solution containing (Fe(NO3)3.9H2O and Bi(NO3)3.5H2O) as precursors together with a polyvinylpyrrolidone solution was electrospun using 2.8KV/cm as electrical field. The collector type was however, changed (aluminum and glass). After the electrospinning, the as-spun nanofibers were submitted to two different heat treatments: one at 550°C and the other at 750°C, both during 2h. The collector type changed the morphology of the nanofibers; while in the glass collector, a non-woven mat of flat and rough nanofibers was obtained, in the aluminum collector, mats of circular and smooth nanofibers were obtained. The thermal treatment also changed the morphology and amount of crystalline phases; at 550°C, the nanofiber morphology was maintained and only one crystalline phase (BiFeO3) was detected. On the other hand, at 750°C, flakes were obtained of two crystalline phases (BiFeO3 and Bi2Fe4O9). (author)

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Additional details

Additional titles

Original title (Portuguese)
Influencia do coletor e do tratamento termico na estrutura de nanofibras eletrofiadas de BiFeO3

Publishing Information

Imprint Pagination
12 p.
Report number
INIS-BR--18059

Conference

Title
Brazilian congress of engineering and materials science
Original Conference Title
22. CBECIMAT: congresso brasileiro de engenharia e ciencia dos materiais
Acronym
22. CBECIMAT
Dates
6-10 Nov 2016
Place
Natal, RN (Brazil)

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
48076732
Subject category
S36: MATERIALS SCIENCE; S77: NANOSCIENCE AND NANOTECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BISMUTH; CERAMICS; CRYSTAL STRUCTURE; DIFFERENTIAL THERMAL ANALYSIS; FERRITE; HEAT TREATMENTS; MORPHOLOGY; NANOFIBERS; PVP; SCANNING ELECTRON MICROSCOPY; THERMAL GRAVIMETRIC ANALYSIS; TRANSMISSION ELECTRON MICROSCOPY
Descriptors DEC
ALLOYS; AMIDES; AZOLES; BLOOD SUBSTITUTES; CARBON ADDITIONS; CHEMICAL ANALYSIS; DRUGS; ELECTRON MICROSCOPY; ELEMENTS; GRAVIMETRIC ANALYSIS; HEMATOLOGIC AGENTS; HETEROCYCLIC COMPOUNDS; IRON ALLOYS; LACTAMS; METALS; MICROSCOPY; NANOSTRUCTURES; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC POLYMERS; POLYMERS; POLYVINYLS; PYRROLES; PYRROLIDONES; QUANTITATIVE CHEMICAL ANALYSIS; THERMAL ANALYSIS; TRANSITION ELEMENT ALLOYS