The review article discusses the current status and recent findings of our investigations on the synthesis and characterization of carbon-supported PtRuMo electrocatalysts for direct alcohol fuel cells. In particular, the effect of the carbon support and the composition on the structure, stability and the activity of the PtRuMo nanoparticles for the electrooxidation of CO, methanol and ethanol ...

A hierarchical N-doped carbon nanotube-graphene hybrid nanostructure (NCNT-GHN), in which the graphene layers are distributed inside the CNT inner cavities, was designed to effi ciently support noble metal (e.g., PtRu) nanoparticles. Well-dispersed PtRu nanoparticles with diameters of 2–4 nm were immobilized onto these NCNT-GHN supports by a low-temperature chemical reduction method without any...

The electrooxidation of methanol in both acidic and alkaline media on poly-crystalline platinum under the regime of cyclic voltammetry is analyzed by application of quadratic logistic equation. The current-charge curves in the anodic cycles fit the logistic differential equation reasonably well and are accounted on the basis of the non-linearity of the kinetics and the effect of positive feedba...

The electrochemical performance and carbon deposition on palladium catalyst promoted Ni/Gd0.1C0.9O1.95 (Ni/GDC) anode in methane and alcohol fuels like methanol and ethanol are investigated at open circuit potential and under dc bias using electrochemical impedance spectroscopy technique. Presence of Pd nanoparticle catalyst significantly promotes the electrocatalytic activity of Ni/GDC for the...

The present paper reports electrochemical and UV-VIS spectroscopic studies on the process of electrooxidation of quercetin 3,4'-di-O-β-glucopyranoside (Q 3,4'-diglc) molecule, at glassy carbon electrode surface in 0.1 M sodium acetate – acetic acid buffer in 90 % methanol solution. The process starts at 3'-OH group (ring B), followed by oxidation of 5,7-dihydroxyl group in ring A. As a result o...

The electrooxidation of methylhydrazine, 1,2-dirnethylhydrazine, and 1,1 -dimethylhydrazine at a platinum electrode was studied using chronopotentiometry, coulometry, and product analysis. The results show that methjJlhydrazine is oxidized in an over-all four-electron reaction to nitrogen and methanol. The oxidation of 1,2-dimethylhydvazine proceeds by an initial two-electron oxidation, followe...