Electrochemical properties of exfoliated graphite/nickel/palladium/carbon fibers composite

The goal of this work was to design a alternative material for hydrogen sorption/desorption by electrochemical devices. The investigations were focused on EG/Ni/Pd/C (exfoliated graphite/nickel/palladium/carbon fibers) composite. The deposition of carbon fibers differing in diameter and length over the EG/Ni/Pd significantly changes the electrochemical properties of the examined composite. SEM (scanning electron microscopy) analysis equipped with EDS (energy-dispersive spectrometer) detector revealed that external part of the investigated composite may involves palladium carbide.