Electro-oxidation of C1 molecules at Pt-based catalysts highly dispersed into a polymer matrix: effect of the method of preparation

Electrocatalytic Oxidation of Methanol at Lower Potentials on Glassy Carbon Electrode Modified by Platinum and Platinum Alloys Incorporated in Poly(o‐Aminophenol) Film

“…This confirms that the poisoning decreases when the electrocatalysts are Pt alloys and are highly dispersed into polymer film. Similar result has already been reported for methanol oxidation at a gold sheet electrode modified by polyaniline film containing dispersed platinum and platinum alloy microparticles [30].…”

Performance comparison of low-temperature direct alcohol fuel cells with different anode catalysts

“…According to literature [18,[36][37][38][39][40][41][42][43][44], Sn favors the low potential oxidation of CO and CO-like intermediates formed during the chemical adsorption of methanol and ethanol. Therefore, tin improves the electro-oxidation of methanol and ethanol at lower potentials and increases the reaction rate.…”

Methanol, Formaldehyde, and Formic Acid Adsorption/Oxidation on a Carbon‐Supported Pt Nanoparticle Fuel Cell Catalyst: A Comparative Quantitative DEMS Study

“…Formaldehyde electro-oxidation has been studied much less extensively compared with methanol and formic acid oxidation [Breiter, 1967;Loucka and Weber, 1968;Sidheswaran and Lal, 1971;Spasojevic et al, 1980;Beltowska-Brzezinska and Heitbaum, 1985;Napporn et al, 1995;Nakabayashi, 1998;Nakabayashi et al, 1998;Mishina, et al, 2002;Okamoto et al, 2005;Mai et al, 2005;Batista and Iwasita, 2006;Samjeské et al, 2007;de Lima et al, 2007]. This may partly be related to experimental problems: formaldehyde disproportionates to methanol and formic acid in the absence of methanol (the Canizzarro reaction).…”

“…The top panels show the faradaic current (solid lines), the partial currents for C 1 oxidation to CO 2 (dashed lines) and for formic acid formation (dash-dotted line), calculated from the respective ion currents, and the difference between the measured faradaic current and the partial current for CO 2 oxidation (formic acid oxidation (a), formaldehyde oxidation (b)), or the difference between faradaic current and the sum of the partial currents for CO 2 formation and formic acid oxidation (methanol oxidation, (c)) (dotted line). The solid lines in the lower panels in de Lima et al, 2007;Miki et al, 2004], and formic acid oxidation [Okamoto et al, 2004;Breiter, 1967;Loucka and Weber, 1968;Spasojevic et al, 1980;Napporn et al, 1995;Okamoto et al, 2005;Park et al, 2002b] on polycrystalline Pt and Pt nanoparticle electrodes. For all three reactants, they exhibit a distinct hysteresis between positive-going and negative-going scan, which had been associated with the different states of the catalyst prior to the onset of the reaction in the two scan directions, with the Pt surface being CO ad -covered at low potentials, before the positive-going scan, and OH ad covered/partly oxidized but CO ad -free at high potentials, before the negative-going scan [Parsons and VanderNoot, 1988;Capon and Parsons, 1973].…”