Catalysis of oxygen reaction on positive electrode of a lithium–oxygen cell in the presence of metallic nanosystems


Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Тек жазылушылар үшін

Аннотация

Electrocatalytic characteristics of a series of carbon materials (carbon blacks XC-72 and Super P and also multiwall nanotubes) and binary metallic nanosystems formed on carbon black XC-72 (PtRu/C and PdRu/C) are studied in the cathodic and anodic reactions of the positive electrode of a lithium–oxygen cell with nonaqueous electrolyte in the first discharge/charging cycles. It is found that a significant decrease in the cell charging overpotential is observed at a transition from carbon supports to binary systems. Overvoltage of the cathodic process also decreases when DMSO-based electrolyte is used in the case of binary systems. The obtained results are due to acceleration of oxygen reduction (cell discharge stage) and facilitation of lithium peroxide oxidation (cell charging stage) on the PtRu/C and PdRu/C systems.

Авторлар туралы

O. Korchagin

Frumkin Institute of Physical Chemistry and Electrochemistry

Email: bogd@elchem.ac.ru
Ресей, Leninskii pr. 31, Moscow, 199071

M. Tarasevich

Frumkin Institute of Physical Chemistry and Electrochemistry

Email: bogd@elchem.ac.ru
Ресей, Leninskii pr. 31, Moscow, 199071

O. Tripachev

Frumkin Institute of Physical Chemistry and Electrochemistry

Email: bogd@elchem.ac.ru
Ресей, Leninskii pr. 31, Moscow, 199071

V. Bogdanovskaya

Frumkin Institute of Physical Chemistry and Electrochemistry

Хат алмасуға жауапты Автор.
Email: bogd@elchem.ac.ru
Ресей, Leninskii pr. 31, Moscow, 199071

Қосымша файлдар

Қосымша файлдар
Әрекет
1. JATS XML

© Pleiades Publishing, Ltd., 2016