electrooxidation of formic acid and formaldehyde on the fe3o4@pt core-shell nanoparticles/carbon-ceramic electrode

in the present work, the electrooxidation of formic acid and formaldehyde; potentially important fuels for future fuel cells, was investigated on the fe3o4@pt core-shell nanoparticles/carbon-ceramic electrode (fe3o4@pt/cce). the fe3o4@pt nanoparticles were prepared via a simple and fast chemical method and their surface morphology, nanostructure properties, chemical composition, crystal phase, and electrochemical behavior were investigated by scanning electron microscope, transmission electron microscope, x-ray diffraction, energy dispersive x-ray spectroscopy and electrochemical methods, respectively. then the electrocatalytic activity of the fe3o4@pt/cce toward the oxidation of formic acid and formaldehyde was studied in details. the primary electrochemical analysis shows that the fe3o4@pt/cce has superior catalytic activity and stability for formic acid and formaldehyde oxidation compared to pt-alone nanoparticles on the carbon-ceramic electrode (pt/cce). the present investigation demonstrates that the fe3o4@pt/cce electrocatalyst may play a significant role in future fuel cell applications.