Electrocatalytic properties of ultrafine platinum particles for hydrogen electrode reaction in an aqueous solution of sulfuric acid

Particle size effect of carbon-supported platinum catalysts for the electrooxidation of methanol

“…This is in agreement with Kinoshita et al [19]. The accompanying shift to higher potentials for the Pt oxide reduction with increasing particle size is in agreement with results of Takasu et al [8]. Also, the onset of oxidation is shifted to higher potentials (cf.…”

“…This is confirmed by the electrochemical measurement of Pt oxide reduction by Takasu et al [8], who observed a potential shift in the negative direction with a decrease in Pt particle size. This could imply that also the oxidation occurs at lower potentials for smaller Pt particles.…”

Reference Electrodes in Metal Corrosion

“…A carbon supported platinum catalyst is also used to produce hydrogen electrodes (GASKATEL, hydroflex electrode) [34]. This and the results of metal catalysis also confirm the catalytic character of equilibrium (10) [30][31][32][33][35][36][37][38][39][40][41][42][43][44].…”

“…In the field of metal catalysis, hydrogen electrode reaction (reaction (10)) is one of the most classic reactions studied from the beginning of the 20th century as a prototype of catalysis where electrodes act as catalysts [32]. It is well known that a hydrogen molecule (H 2 ) (sometimes called dihydrogen [37,44]) must be activated before any chemical process [30][31][32][33][35][36][37][38][39][40][41][42][43][44][45][46]. There are many catalytic processes, where activation of the hydrogen molecule is a basic process.…”

On-line characterization of platinum/graphite catalysts during liquid phase oxidations using cyclic voltammetry

“…The potential at which the platinum oxide is reduced is a function of the particle diameter. The larger the particle diameter, the easier the oxides of the particles are reduced, corresponding to a more positive reduction potential [41,42].…”