Sosenkin V. E. RussiaMoscow Institute of Physical Chemistry and Electrochemistry of A. N. Frumkina of RAS, 31, Leninsky Ave, Moscow, 119071 Author's articles A powerful electrochemical supercapacitor on carbon nanotubes Electrochemical behavior of superfine carbon in electrolytes based on ionic liquid 1-methyl-3-butylimidazol tetrafluorborate