Electrochemical two-electron O2 reduction reaction toward H2O2 production: using cobalt porphyrin decorated carbon nanotubes as a nanohybrid catalyst

A Co-tetramethoxyphenylporphyrin/carbon nanotube hybrid efficiently electrocatalyzes H 2 O 2 production via 2e − O 2 reduction with an ultrahigh mass activity. The catalytic mechanism is revealed by in situ infrared spectroscopy and DFT calculations.