The Effect of Magnetic Field on Catalytic Properties in Core-Shell Type Particles
Emma Westsson (TU Delft - RST/Storage of Electrochemical Energy)
Stephen Picken (TU Delft - ChemE/Advanced Soft Matter)
Ger Koper (TU Delft - ChemE/Advanced Soft Matter)
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Abstract
Magnetic field effects can provide a handle on steering chemical reactions and manipulating yields. The presence of a magnetic field can influence the energy levels of the active species by interacting with their spin states. Here we demonstrate the effect of a magnetic field on the electrocatalytic processes taking place on platinum-based nanoparticles in fuel cell conditions. We have identified a shift in the potentials representing hydrogen adsorption and desorption, present in all measurements recorded in the presence of a magnetic field. We argue that the changes in electrochemical behavior are a result of the interactions between the magnetic field and the unpaired spin states of hydrogen.