Administration of EMP-related Publications
| year | 2013 |
| author(s) | C. Jähne, C. Neef, C. Koo, H.-P. Meyer and R. Klingeler |
| title | A new LiCoPO4 polymorph via low temperature synthesis |
| document type | Paper |
| source | J Materials Chem. A 1, 2856-2862 (2013) |
| doi | 10.1039/C2TA00118G |
| EMP/Horizon2020 | This publication does not include a EMP/Horizon2020 acknowledgement. |
| abstract | Non-olivine LiCoPO4 microcrystals have been synthesized at low temperatures by microwave-assisted hydrothermal synthesis. The resulting octahedra-like micrometer-sized crystals exhibit a Pn21a symmetry and are isostructural to LiZnPO4. The orthorhombic lattice constants are a = 10.023(8) Å, b = 6.724(7) Å, and c = 4.963(4) Å. The microcrystals are metastable and transform to olivine LiCoPO4 upon heating above T ≈ 220 °C under an argon atmosphere. The magnetic properties confirm a phase pure material with a Co-valence of 2+, and imply long-range antiferromagnetic ordering below TN = 11 K. Electrochemical analysis by means of cyclic voltammetry displays a reversible redox couple at around 5.1 V/4.8 V vs. Li/Li+. |