CuLi2Sn and Cu2LiSn
- Author(s)
- Siegfried Furtauer, Herta S. Effenberger, Hans Flandorfer
- Abstract
The stannides CuLi 2Sn (CSD-427095) and Cu 2LiSn (CSD-427096) were synthesized by induction melting of the pure elements and annealing at 400 °C. The phases were reinvestigated by X-ray powder and single-crystal X-ray diffractometry. Within both crystal structures the ordered CuSn and Cu 2Sn lattices form channels which host Cu and Li atoms at partly mixed occupied positions exhibiting extensive vacancies. For CuLi 2Sn, the space group F-43m. was verified (structure type CuHg 2Ti; a=6.295(2) Å; wR 2(F)=0.0355 for 78 unique reflections). The 4(c) and 4(d) positions are occupied by Cu atoms and Cu+Li atoms, respectively. For Cu 2LiSn, the space group P6 3/mmc was confirmed (structure type InPt 2Gd; a=4.3022(15) Å, c=7.618(3) Å; wR 2(F)=0.060 for 199 unique reflections). The Cu and Li atoms exhibit extensive disorder; they are distributed over the partly occupied positions 2(a), 2(b) and 4(e). Both phases seem to be interesting in terms of application of Cu-Sn alloys as anode materials for Li-ion batteries.
- Organisation(s)
- Department of Functional Materials and Catalysis, Department of Mineralogy and Crystallography
- Journal
- Journal of Solid State Chemistry
- Volume
- 220
- Pages
- 198-205
- No. of pages
- 8
- ISSN
- 0022-4596
- DOI
- https://doi.org/10.1016/j.jssc.2014.08.006
- Publication date
- 08-2014
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 104003 Inorganic chemistry, 104017 Physical chemistry, 104011 Materials chemistry, 105113 Crystallography
- Keywords
- ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Ceramics and Composites, Materials Chemistry, Inorganic Chemistry, Physical and Theoretical Chemistry
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/culi2sn-and-cu2lisn(e12771cd-5678-4144-ae1f-da80fd7da746).html