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  Synthesis, characterization and p–n type gas sensing behaviour of CuFeO2 delafossite type inorganic wires using Fe and Cu complexes as single source molecular precursors

Patzsch, J., Balog, I., Krauß, P., Lehmann, C. W., & Schneider, J. J. (2014). Synthesis, characterization and p–n type gas sensing behaviour of CuFeO2 delafossite type inorganic wires using Fe and Cu complexes as single source molecular precursors. RSC Advances, 4(30), 15348-15355. doi:10.1039/c3ra47514j.

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Patzsch, Julia1, Author
Balog, Ildiko1, Author
Krauß, Peter1, Author
Lehmann, Christian W.2, Author              
Schneider, Jörg J.1, Author
Affiliations:
1Fachbereich Chemie, Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Str. 12, 64287 Darmstadt, Germany, ou_persistent22              
2Service Department Lehmann (EMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445625              

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 Abstract: CuFeO2 delafossite type nanowires with a diameter of 180 nm were successfully synthesized by electrospinning using an equimolar mixture of molecular copper and iron precursors and polyacrylnitrile as polymer template followed by calcination. This mixture was electrospun under ambient conditions. The copper and iron precursor complexes diaqua-bis[2-(methoxyimino)-propanato] M(II) (M = Cu, Fe) were fully characterized by spectroscopic and electrochemistry methods (NMR, IR, cyclovoltammetry) as well as by single crystal structure and by thermogravimetric analysis (TGA). The pre-ceramic electrospun composite fiber mats were subsequently heat treated in a two step procedure to yield the final CuFeO2 delafossite type nanowires agglomerated as microsized ceramic mats. Intermediate oxide phases as well as the finally obtained CuFeO2 fibrous mats composed of delafossite type nanowires were characterized analytically by temperature dependent powder X-ray crystallography (PXRD). Their topological morphology was studied by scanning electron microscopy (SEM). The obtained CuFeO2 fibrous mats were studied with respect to their O2 gas sensing behaviour and variable p and n-type semiconducting behaviour depending on temperature was observed.

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Language(s): eng - English
 Dates: 2013-12-112014-03-142014-03-17
 Publication Status: Published online
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1039/c3ra47514j
 Degree: -

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Title: RSC Advances
  Abbreviation : RSC Adv.
Source Genre: Journal
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Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: - Volume / Issue: 4 (30) Sequence Number: - Start / End Page: 15348 - 15355 Identifier: ISSN: 2046-2069
CoNE: https://pure.mpg.de/cone/journals/resource/2046-2069