Co-Precipitation of Fe—Cu Bimetal Oxalates in an Aqueous Solution and Their Thermally Induced Decomposition
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F21%3A73607917" target="_blank" >RIV/61989592:15310/21:73607917 - isvavai.cz</a>
Result on the web
<a href="https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202100581" target="_blank" >https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202100581</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ejic.202100581" target="_blank" >10.1002/ejic.202100581</a>
Alternative languages
Result language
angličtina
Original language name
Co-Precipitation of Fe—Cu Bimetal Oxalates in an Aqueous Solution and Their Thermally Induced Decomposition
Original language description
This work focuses on the preparation of bimetal Fe−Cu oxalates by a co-precipitation reaction in an aqueous solution and subsequently on their thermally induced decomposition. The formation of solid solutions of Fe−Cu oxalates with various Fe/Cu ratios was studied by energy dispersive X-ray analysis, X-ray powder diffraction, transmission 57Fe Mössbauer spectroscopy, and scanning electron microscopy. The results suggest that the bimetal Fe−Cu oxalate precipitated in a structure similar to β-FeC2O4 ⋅ 2H2O. The maximum relative amount of Cu obtained within the bimetal oxalate was approximately 40 %. However, the single bimetal phase composition was obtained only for a limited range of Fe/Cu ratios. The Fe-rich samples contained also β-FeC2O4 ⋅ 2H2O, while the Cu-rich samples were predominantly composed of CuC2O4 ⋅ nH2O and contained much lower amounts of Fe than expected. The thermal decomposition of the prepared oxalate with the nominal Fe/Cu ratio of 65/35 was studied by in-situ X-ray powder diffraction in combination with ex-situ Mössbauer spectroscopy. The mixing of both metals at the molecular level allowed the preparation of copper ferrite particles at a relatively low temperature of 470 °C.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
21001 - Nano-materials (production and properties)
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
ISSN
1434-1948
e-ISSN
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Volume of the periodical
2021
Issue of the periodical within the volume
37
Country of publishing house
DE - GERMANY
Number of pages
10
Pages from-to
3886-3895
UT code for WoS article
000693316600001
EID of the result in the Scopus database
2-s2.0-85114159322