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

doi:10.1016/j.jssc.2015.11.011

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	390-396
Number of pages	7
Journal	Journal of Solid State Chemistry
Volume	233
DOIs	https://doi.org/10.1016/j.jssc.2015.11.011
Publication status	Published - 1 Jan 2016
Externally published	Yes

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

Access to Document

10.1016/j.jssc.2015.11.011

Cite this

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

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 ",

keywords = "CuFeO, Delafossite, Low-temperature synthesis, Magnetization, Nanoparticles",

author = "Melanie John and Soraya Heuss-A{\ss}bichler and Park, {So Hyun} and Aladin Ullrich and Georg Benka and Nikolai Petersen and Daniel Rettenwander and Horn, {Siegfried R.}",

year = "2016",

month = jan,

day = "1",

doi = "10.1016/j.jssc.2015.11.011",

language = "English",

volume = "233",

pages = "390--396",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

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T1 - Low-temperature synthesis of CuFeO2 (delafossite) at 70 °c

T2 - A new process solely by precipitation and ageing

AU - John, Melanie

AU - Heuss-Aßbichler, Soraya

AU - Park, So Hyun

AU - Ullrich, Aladin

AU - Benka, Georg

AU - Petersen, Nikolai

AU - Rettenwander, Daniel

AU - Horn, Siegfried R.

PY - 2016/1/1

Y1 - 2016/1/1

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AB - 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

KW - CuFeO

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KW - Low-temperature synthesis

KW - Magnetization

KW - Nanoparticles

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