Nano‐Electrochemical Detection of Hydrogen or Protons Using Palladium Nanoparticles: Distinguishing Surface and Bulk Hydrogen

Abstract

The benefits of using nanoparticle‐modified electrodes are exemplified through the electrochemical detection of protons and/or hydrogen. It is shown that a palladium‐nanoparticle‐modified boron‐doped diamond allows voltammetric information relating to the relative roles played by the surface and the bulk metal to be obtained for the proton–hydrogen system at palladium surfaces which is not accessible using palladium macroelectrodes or microelectrodes.