Size control of carbon-supported platinum nanoparticles made using polyol method for low temperature fuel cells
نویسندگان
چکیده
منابع مشابه
Instability of Supported Platinum Nanoparticles in Low-Temperature Fuel Cells
This paper discusses the mechanisms of surface area loss of supported platinum (Pt) electrocatalysts in lowtemperature fuel cells. It is argued that submonolayer dissolution of Pt nanoparticles governs the surface area loss at high voltages by increasing the loss of Pt from carbon and coarsening of Pt nanoparticles on carbon.
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The oxygen reduction reaction (ORR) is the oldest studied and most challenging of the electrochemical reactions. Due to its sluggish kinetics, ORR became the major contemporary technological hurdle for electrochemists, as it hampers the commercialization of fuel cell (FC) technologies. Downsizing the metal particles to nanoscale introduces unexpected fundamental modifications compared to the co...
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Performance of low temperature fuel cells depends critically on the nanostructures of the material components in the electrodes and membranes. Some studies are reported here for 1) mixed metal nanoparticles supported on mesoporous carbon and 2) modification of nanopores of Nafion via in-situ polymerization of furfuryl alcohol. The anodic oxidation of small organic molecules such as alcohols in ...
متن کاملFormation of Platinum Catalyst on Carbon Black Using an In-Liquid Plasma Method for Fuel Cells
Platinum (Pt) catalyst was formed on the surface of carbon black using an in-liquid plasma method. The formed Pt catalyst showed the average particle size of 4.1 nm. This Pt catalyst was applied to a polymer electrolyte membrane fuel cell (PEMFC). The PEMFC showed an open voltage of 0.85 V and a maximum output power density of 216 mW/cm2.
متن کاملLow Platinum Loading Catalysts for Fuel Cells
Objectives • Further improve the new catalyst consisting of a submonolayer of Pt on carbon-supported Ru nanoparticles (1%Pt/10%Ru/C) to come close to the DOE’s 2010 target of 100 μg/cm2 noble metal loading. • Further elucidate the inhibition mechanism of CO on H2 oxidation on Pt. • Reduce Ru loadings in Pt-Ru electrocatalysts. • Explore monolayer-level-supported Pt electrocatalysts for O2 reduc...
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ژورنال
عنوان ژورنال: Chemical Engineering Science
سال: 2013
ISSN: 0009-2509
DOI: 10.1016/j.ces.2013.05.067