Low-temperature synthesis of CuFeO2 (delafossite) at 70 °c: A new process solely by precipitation and ageing

Melanie John, Soraya Heuss-Aßbichler, So Hyun Park, Aladin Ullrich, Georg Benka, Nikolai Petersen, Daniel Rettenwander, Siegfried R. Horn

Research output: Contribution to journalArticleResearchpeer-review

Abstract

This study presents a new low temperature synthesis method to obtain pure delafossite (Cu1+Fe3+O2) at a temperature of 70 °C within 24 h. For the first time delafossite is synthesized solely by precipitation and subsequent ageing process and without usage of any additives controlling the oxidation state of copper. The synthesized material, called LT-delafossite, consists of pure Cu1+Fe3+O2 exclusive of any side products. Rietveld analysis confirms the presence of both 3R (space group (SG): R-3m) and 2H (SG: P63/mmc) polytypes in LT-delafossite. Electron microscopy images show nanometer-sized hexagonal plates with a diameter

Original languageEnglish
Pages (from-to)390-396
Number of pages7
JournalJournal of solid state chemistry
Volume233
DOIs
Publication statusPublished - 1 Jan 2016
Externally publishedYes

Fingerprint

Aging of materials
Rietveld analysis
synthesis
Electron microscopy
Copper
electron microscopy
copper
Oxidation
Temperature
oxidation
products
temperature

Keywords

  • CuFeO
  • Delafossite
  • Low-temperature synthesis
  • Magnetization
  • Nanoparticles

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

John, M., Heuss-Aßbichler, S., Park, S. H., Ullrich, A., Benka, G., Petersen, N., ... Horn, S. R. (2016). Low-temperature synthesis of CuFeO2 (delafossite) at 70 °c: A new process solely by precipitation and ageing. Journal of solid state chemistry, 233, 390-396. https://doi.org/10.1016/j.jssc.2015.11.011

Low-temperature synthesis of CuFeO2 (delafossite) at 70 °c : A new process solely by precipitation and ageing. / John, Melanie; Heuss-Aßbichler, Soraya; Park, So Hyun; Ullrich, Aladin; Benka, Georg; Petersen, Nikolai; Rettenwander, Daniel; Horn, Siegfried R.

In: Journal of solid state chemistry, Vol. 233, 01.01.2016, p. 390-396.

Research output: Contribution to journalArticleResearchpeer-review

John, Melanie ; Heuss-Aßbichler, Soraya ; Park, So Hyun ; Ullrich, Aladin ; Benka, Georg ; Petersen, Nikolai ; Rettenwander, Daniel ; Horn, Siegfried R. / Low-temperature synthesis of CuFeO2 (delafossite) at 70 °c : A new process solely by precipitation and ageing. In: Journal of solid state chemistry. 2016 ; Vol. 233. pp. 390-396.
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