Electrochemical investigation of single-walled carbon nanotubes for hydrogen storage

Abstract

Electrodes made of purified and open single walled carbon nanotubes behave like metal hydride electrodes in Ni–MH batteries, showing high electrochemical reversible charging capacity up to 800 mAh g −1 corresponding to a hydrogen storage capacity of 2.9 wt% compared to known AB 5, AB 2 metal hydride electrodes.