Impact electrochemistry of individual molybdenum nanoparticles

• Molybdenum nanoparticle direct oxidation upon the impact to carbon electrode was recorded.
• The chronoamperometry was used to record impacting nanoparticles.
• The size determination by electrochemistry and SEM showed consistent results.

Detection of individual nanoparticles is of high importance to basic science as well as to applied one, i.e., for remediation efforts. Electrochemistry was shown previously to play an important role in detection, counting and measuring individual nanoparticles. Here we show that individual molybdenum nanoparticles can be detected and counted by chronoamperometry upon their impact on the carbon electrode surface. The size determination of individual nanoparticles by electrochemical measurement is consistent with the size determination by scanning electron microscopy.