Magnetic resonance imaging (MRI) techniques for polymer electrolyte membrane and direct alcohol fuel cell characterization

Determination of flow patterns in a rotating disk electrode configuration by MRI

“…[25,26] and specific applications in electrochemistry in Ref. [27]. NMR is based on the fact that nuclear spins undergo a precession around the direction of the magnetic field induced by the magnet (B 0 ).…”

“…Metallic components within the sample may generate image artifacts due to changes in the rf field, magnetic susceptibility and the presence of eddy currents [17,27]. As two images are necessary to obtain the velocity map these artifacts will in principle cancel out as they are equal in both, providing that the induced distortion is not strong enough to locally cancel the signal.…”