A composite based on sodium germanate and reduced graphene oxide: Synthesis from peroxogermanate and application as anode material for lithium ion batteries
| Autor: | Ovadia Lev, Dmitry A. Grishanov, Petr V. Prikhodchenko, Tatiana A. Tripol’skaya, Alexey A. Mikhaylov, E. A. Mel’nik, Alexander G. Medvedev |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Graphene Materials Science (miscellaneous) Sodium Oxide chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Anode law.invention Inorganic Chemistry chemistry.chemical_compound chemistry Chemical engineering law Lithium Physical and Theoretical Chemistry Thin film 0210 nano-technology Sodium germanate |
| Zdroj: | Russian Journal of Inorganic Chemistry. 62:1624-1631 |
| ISSN: | 1531-8613 0036-0236 |
| DOI: | 10.1134/s0036023617120142 |
| Popis: | A composite based on sodium germanate and reduced graphene oxide was obtained for the first time by precipitating the initial peroxogermanate on a graphene oxide followed by heat treatment in vacuum. According to powder X-ray diffraction, sodium germanate crystallizes during the heat treatment in vacuum at 500°C. Scanning transmission electron microscopy examination showed that sodium peroxogermanate nanoparticles form a thin film on the surface of graphene oxide flakes. The electrochemical characteristics of composites obtained with different heat treatment conditions were studied as the anodes of lithium ion batteries. |
| Databáze: | OpenAIRE |
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