Sol–gel electrospun mesoporous ZnMn2O4 nanofibers with superior specific surface area

ZnMn 2 O 4 has application potential in lithium ion batteries, supercapacitors, sensors, and thermistors. In this study, mesoporous spinel ZnMn 2 O 4 nanofibers were synthesized by sol–gel assisted electrospinning combined with calcination, using poly(styrene- co -acrylonitrile) as sacrificial polym...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2017-11, Vol.28 (21), p.15846-15860
Main Authors: Shamitha, C., Senthil, T., Wu, Lixin, Kumar, B. Sachin, Anandhan, S.
Format: Article
Language:English
Subjects:
Aluminum
Characterization and Evaluation of Materials
Chemistry and Materials Science
Electrospinning
Fourier transforms
High temperature
Lithium
Lithium-ion batteries
Materials Science
Metal oxides
Morphology
Nanofibers
Optical and Electronic Materials
Optical properties
Polymers
Polystyrene resins
Roasting
Sensors
Sol-gel processes
Specific surface
Spectrum analysis
Spinel
Supercapacitors
Surface area
Thermistors
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Summary:ZnMn 2 O 4 has application potential in lithium ion batteries, supercapacitors, sensors, and thermistors. In this study, mesoporous spinel ZnMn 2 O 4 nanofibers were synthesized by sol–gel assisted electrospinning combined with calcination, using poly(styrene- co -acrylonitrile) as sacrificial polymeric binder. Structural, morphological and optical properties of these ceramic nanofibers were characterized. X-ray diffraction and X-ray photoelectron spectroscopy results revealed the presence of hexagonal ZnMnO 3 and MnO phases in the ZnMn 2 O 4 nanofibers produced. Based on these observations we propose a plausible mechanism of formation of ZnMn 2 O 4 nanofibers. The nanofibers calcined at 773 K exhibit a specific surface area of 79.5 m 2  g −1 , which is higher than that of the zinc manganite nanofibers synthesized hitherto by sol–gel electrospinning. Moreover, this material exhibits four bandgaps, which is believed to be the first observation in ZnMn 2 O 4 nanofibers.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-017-7479-0