Ge 10 cluster, Na 4 (Ge,Si) 9 O 20 , hydrothermal. A Si modified Ge 10 cluster with structure Na 4 (Ge,Si) 9 O 20 (denoted as HUT-1) was synthesized by hydrothermal synthesis at 160 Β°C with a sodium silicate source. The compound was characterized by single crystal, powder X-ray diffraction and TGA-
Gel synthesis and crystallization of glass powders in the Li2Ge4O9-Na2Ge4O9composition range
β Scribed by M. Catauro; A. Aronne; P. Pernice; A. Marotta
- Publisher
- Springer
- Year
- 1996
- Tongue
- English
- Weight
- 183 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0261-8028
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## Abstract The title compound with approximate composition Na~4~Ge~7.68~Si~1.32~O~20~ is hydrothermally prepared from a GeO~2~/xH~2~O/5en/2βmethyl pentanethylenediamine/yNaSiO~3~Β·9H~2~O (x = 35β46; y = 0.1β0.5) mixture (autoclave, 160 Β°C, 7 d) and characterized by powder and single crystal XRD.
packed structures was further extended by Goodenough's group to 3-D materials with the spinel structure (3). It was Lithium manganospinels belonging to the LiMn 2 O 4 -Li 2 Mn 4 O 9 -Li 4 Mn 5 O 12 system were prepared by solid-state reac-shown that lithium could be intercalated into the spinels tio