Details
| Original language | English |
|---|---|
| Pages (from-to) | 326-333 |
| Number of pages | 8 |
| Journal | Zeitschrift fur Anorganische und Allgemeine Chemie |
| Volume | 639 |
| Issue number | 2 |
| Publication status | Published - Feb 2013 |
Abstract
A new synthesis route to Li2NiF4 based on a fluorolytic process using Ni(acac)2 or Ni(OAc)2· 4H2O as precursor is presented. Variation of the synthesis conditions allows crystallite size control of the obtained powders. 6Li and 7Li MAS NMR experiments were carried out to study local environments of the lithium ions. Several attempts were made to synthesize Li 2CoF4, which are, unfortunately, hitherto not successful. Nevertheless, our studies clearly reveal that solid solutions Li 2NiF4-Li2CoF4 are stable up to ca. 30 % cobalt. High-temperature X-ray diffraction measurements also show no evidence for the existence of pure Li2CoF4. These findings are supported by quantum chemical calculations.
Keywords
- Cobalt, Nickel, NMR spectroscopy, Synthesis, X-ray diffraction
ASJC Scopus subject areas
- Chemistry(all)
- Inorganic Chemistry
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Zeitschrift fur Anorganische und Allgemeine Chemie, Vol. 639, No. 2, 02.2013, p. 326-333.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Low-temperature synthesis, characterization, and stability of spinel-type Li2NiF4 and solid-solutions Li2Ni 1-xCoxF4
AU - Kohl, Julia
AU - Nakhal, Suliman
AU - Ferro, Noel
AU - Bottke, Patrick
AU - Wilkening, Martin
AU - Bredow, Thomas
AU - Heitjans, Paul
AU - Lerch, Martin
PY - 2013/2
Y1 - 2013/2
N2 - A new synthesis route to Li2NiF4 based on a fluorolytic process using Ni(acac)2 or Ni(OAc)2· 4H2O as precursor is presented. Variation of the synthesis conditions allows crystallite size control of the obtained powders. 6Li and 7Li MAS NMR experiments were carried out to study local environments of the lithium ions. Several attempts were made to synthesize Li 2CoF4, which are, unfortunately, hitherto not successful. Nevertheless, our studies clearly reveal that solid solutions Li 2NiF4-Li2CoF4 are stable up to ca. 30 % cobalt. High-temperature X-ray diffraction measurements also show no evidence for the existence of pure Li2CoF4. These findings are supported by quantum chemical calculations.
AB - A new synthesis route to Li2NiF4 based on a fluorolytic process using Ni(acac)2 or Ni(OAc)2· 4H2O as precursor is presented. Variation of the synthesis conditions allows crystallite size control of the obtained powders. 6Li and 7Li MAS NMR experiments were carried out to study local environments of the lithium ions. Several attempts were made to synthesize Li 2CoF4, which are, unfortunately, hitherto not successful. Nevertheless, our studies clearly reveal that solid solutions Li 2NiF4-Li2CoF4 are stable up to ca. 30 % cobalt. High-temperature X-ray diffraction measurements also show no evidence for the existence of pure Li2CoF4. These findings are supported by quantum chemical calculations.
KW - Cobalt
KW - Nickel
KW - NMR spectroscopy
KW - Synthesis
KW - X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=84873958626&partnerID=8YFLogxK
U2 - 10.1002/zaac.201200455
DO - 10.1002/zaac.201200455
M3 - Article
AN - SCOPUS:84873958626
VL - 639
SP - 326
EP - 333
JO - Zeitschrift fur Anorganische und Allgemeine Chemie
JF - Zeitschrift fur Anorganische und Allgemeine Chemie
SN - 0044-2313
IS - 2
ER -