Catalysis of formaldehyde oxidation by electrodeposits of PtRu

Oscillatory behaviour in Galvanostatic Formaldehyde Oxidation on Nanostructured Pt/Glassy Carbon Model Electrodes

“…[60,[65][66][67] It is important to emphasize that the reversible hydration of formaldehyde proceeds in bulk solution and thus opens a direct path towards CO 2 formation in methanol oxidation (for a detailed discussion see refs. [60,[65][66][67]). Beside CO ad blocking (coverage effect) mesoscopic mass transport effects can also play a role as discussed above due to the off-transport of formic acid which is expressed more at lower Pt nanoparticle densities.…”

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].…”

Electrocatalytic oxidation of formaldehyde on nickel modified ionic liquid carbon paste electrode as a simple and efficient electrode

“…Formaldehyde is also used in technologically important processes such as electroless copper plating and the textile industries, and thus its oxidation is relevant to waste water treatment [20]. Hence, in the past few years, many reports have been published on the oxidation of HCHO under a wide range of conditions and on various electrodes [13,[20][21][22][23][24][25][26][27]. On the other hand, the use of Ni as a catalyst for electrooxidation of this compound is of interest because it is an inexpensive metal.…”