Electrochemical synthesis of lithium fullerides
Chem. Met. Alloys 6 (2013) 40-42
A.O. ZUL’FIGAROV, V.A. POTASKALOV, A.P. POMYTKIN, A.A. ANDRIIKO, D.V. SHCHUR, O.A. KRIUKOVA, V.G. KHOMENKO
The electrochemical reaction of Li with fullerene in an aprotic electrolyte was studied. It was found that a lithium-rich fulleride with approximate formula Li10C60 can be obtained in the presence of a catalyst. This amount of Li is irreversibly incorporated into the structure. Additionally, 4-5 atoms can be introduced reversibly, thus allowing cycling the material with an initial reversible capacity of about 180 mAh·g-1. The pyrolysis product of a heterometal complex with monoaminoethanol ligands is shown to be a good catalyst for this process.
Galvanostatic curves of Li+ reduction on fullerene C60 at a specific current of 40 mA·g-1.
1 – initial sample; 2 – fullerene with grafted 2Co-Ni complex with monoethanol amine;
3 – the same with the complex pyrolized in argon at 500°C
Fullerene / Lithium fulleride / Electrochemical synthesis