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Erschienen in: Journal of Nanoparticle Research 4/2013

01.04.2013 | Research Paper

A novel method for controlled synthesis of nanosized hematite (α-Fe2O3) thin film on liquid–vapor interface

verfasst von: Pawan Kumar, Raj Kumar Singh, Nitin Rawat, Partha Bir Barman, Subhash Chander Katyal, Hwanchol Jang, Heung-No Lee, Rajesh Kumar

Erschienen in: Journal of Nanoparticle Research | Ausgabe 4/2013

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Abstract

Hematite (α-Fe2O3) films with a high quality surface morphology have been formed at the liquid–vapor interface using a novel approach. The surface morphology/size of the nanoparticles constituting the film is tuned in a controlled manner. It is observed that the concentration of polyvinyl alcohol in the precursor Fe3+/Fe2+ solution, the concentration of ammonia (NH3) vapor, and the annealing temperature are factors influencing the surface morphology/size of nanoparticles. The diameter of the α-Fe2O3 nanoparticles inside the film is controlled to be 2–15 nm by varying the synthesis conditions, and accordingly the films have roughness in the 1.34–6.8 nm range. The prepared α-Fe2O3 films are crystalline in nature and exhibit superparamagnetic behavior at room temperature.

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Metadaten
Titel
A novel method for controlled synthesis of nanosized hematite (α-Fe2O3) thin film on liquid–vapor interface
verfasst von
Pawan Kumar
Raj Kumar Singh
Nitin Rawat
Partha Bir Barman
Subhash Chander Katyal
Hwanchol Jang
Heung-No Lee
Rajesh Kumar
Publikationsdatum
01.04.2013
Verlag
Springer Netherlands
Erschienen in
Journal of Nanoparticle Research / Ausgabe 4/2013
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI
https://doi.org/10.1007/s11051-013-1532-6

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