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Nanostructured Fe2O3/TiO2 thick films: Analysis of structural and electronic properties

Authorized Users Only
2015
Authors
Vasiljević, Zorka Ž.
Luković, Miloljub D.
Nikolić, Maria Vesna
Tasić, Nikola B.
Mitrić, Miodrag
Aleksić, Obrad S.
Article (Published version)
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Abstract
Thick films using starting nanopowders of TiO2 (anatase 99.7%) and α-Fe2O3 (hematite) mixed in the weight ratios 60:40 and 40:60 for thick film paste were fabricated by screen printing technology on an alumina substrate. Samples were sintered at temperatures of 800-950 °C for 60 min. Structural and electronic properties were analyzed by XRD and SEM analysis, UV/vis spectroscopy and current-voltage analysis in view of potential application as gas sensors and anodes in photoelectrochemical cells for hydrogen generation and water splitting. XRD analysis showed that at 800 °C monoclinic pseudobrookite formed and anatase had transformed into rutile. Increase in sintering temperature lead to a gradual transformation of monoclinic pseudobrookite into the orthorhombic phase. SEM analysis showed that a homogenous small grain structure was obtained especially in the case of thick film samples with the 40:60 ratio of starting anatase and hematite sintered at 850 °C. © 2015 Elsevier Ltd and Techna... Group S.r.l.

Keywords:
films / sintering / optical properties / pseudobrookite
Source:
Ceramics International, 2015, 41, 5, 6889-6897
Publisher:
  • Elsevier
Projects:
  • Zero- to Three-Dimensional Nanostructures for Application in Electronics and Renewable Energy Sources: Synthesis, Characterization and Processing (RS-45007)

DOI: 10.1016/j.ceramint.2015.01.141

ISSN: 0272-8842

WoS: 000353176400029

Scopus: 2-s2.0-84925182708
[ Google Scholar ]
7
7
URI
http://dais.sanu.ac.rs/123456789/3540
Collections
  • ITN SANU - Opšta kolekcija / ITS SASA - General collection
Institution
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - JOUR
AU  - Vasiljević, Zorka Ž.
AU  - Luković, Miloljub D.
AU  - Nikolić, Maria Vesna
AU  - Tasić, Nikola B.
AU  - Mitrić, Miodrag
AU  - Aleksić, Obrad S.
PY  - 2015
UR  - http://dais.sanu.ac.rs/123456789/3540
AB  - Thick films using starting nanopowders of TiO2 (anatase 99.7%) and α-Fe2O3 (hematite) mixed in the weight ratios 60:40 and 40:60 for thick film paste were fabricated by screen printing technology on an alumina substrate. Samples were sintered at temperatures of 800-950 °C for 60 min. Structural and electronic properties were analyzed by XRD and SEM analysis, UV/vis spectroscopy and current-voltage analysis in view of potential application as gas sensors and anodes in photoelectrochemical cells for hydrogen generation and water splitting. XRD analysis showed that at 800 °C monoclinic pseudobrookite formed and anatase had transformed into rutile. Increase in sintering temperature lead to a gradual transformation of monoclinic pseudobrookite into the orthorhombic phase. SEM analysis showed that a homogenous small grain structure was obtained especially in the case of thick film samples with the 40:60 ratio of starting anatase and hematite sintered at 850 °C. © 2015 Elsevier Ltd and Techna Group S.r.l.
PB  - Elsevier
T2  - Ceramics International
T1  - Nanostructured Fe2O3/TiO2 thick films: Analysis of structural and electronic properties
SP  - 6889
EP  - 6897
VL  - 41
IS  - 5
DO  - 10.1016/j.ceramint.2015.01.141
ER  - 
@article{
author = "Vasiljević, Zorka Ž. and Luković, Miloljub D. and Nikolić, Maria Vesna and Tasić, Nikola B. and Mitrić, Miodrag and Aleksić, Obrad S.",
year = "2015",
url = "http://dais.sanu.ac.rs/123456789/3540",
abstract = "Thick films using starting nanopowders of TiO2 (anatase 99.7%) and α-Fe2O3 (hematite) mixed in the weight ratios 60:40 and 40:60 for thick film paste were fabricated by screen printing technology on an alumina substrate. Samples were sintered at temperatures of 800-950 °C for 60 min. Structural and electronic properties were analyzed by XRD and SEM analysis, UV/vis spectroscopy and current-voltage analysis in view of potential application as gas sensors and anodes in photoelectrochemical cells for hydrogen generation and water splitting. XRD analysis showed that at 800 °C monoclinic pseudobrookite formed and anatase had transformed into rutile. Increase in sintering temperature lead to a gradual transformation of monoclinic pseudobrookite into the orthorhombic phase. SEM analysis showed that a homogenous small grain structure was obtained especially in the case of thick film samples with the 40:60 ratio of starting anatase and hematite sintered at 850 °C. © 2015 Elsevier Ltd and Techna Group S.r.l.",
publisher = "Elsevier",
journal = "Ceramics International",
title = "Nanostructured Fe2O3/TiO2 thick films: Analysis of structural and electronic properties",
pages = "6889-6897",
volume = "41",
number = "5",
doi = "10.1016/j.ceramint.2015.01.141"
}
Vasiljević ZŽ, Luković MD, Nikolić MV, Tasić NB, Mitrić M, Aleksić OS. Nanostructured Fe2O3/TiO2 thick films: Analysis of structural and electronic properties. Ceramics International. 2015;41(5):6889-6897
Vasiljević, Z. Ž., Luković, M. D., Nikolić, M. V., Tasić, N. B., Mitrić, M.,& Aleksić, O. S. (2015). Nanostructured Fe2O3/TiO2 thick films: Analysis of structural and electronic properties.
Ceramics InternationalElsevier., 41(5), 6889-6897.
https://doi.org/10.1016/j.ceramint.2015.01.141
Vasiljević Zorka Ž., Luković Miloljub D., Nikolić Maria Vesna, Tasić Nikola B., Mitrić Miodrag, Aleksić Obrad S., "Nanostructured Fe2O3/TiO2 thick films: Analysis of structural and electronic properties" 41, no. 5 (2015):6889-6897,
https://doi.org/10.1016/j.ceramint.2015.01.141 .

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