| dc.description.abstract | Abstract
Fuel cell shows excellent ability in power-transformation as a result of high efficiency, little noise, few pollutants, and so forth. Among all the fuel cells, direct methanol fuel cell (DMFC) is the best choice for mobile power supply, replacing the application of Li-ion battery at present. Although DMFC has attracted many research groups’ attention because of owning such a variety of superior properties, there are still some problems badly to be solved. The developing barriers are involved in electro-oxidation performance of catalysts and methanol cross-over between electrodes, blocking the accomplishment of DMFC commercialized products.
The present study was focused on improving the electrochemical performance of the anodic catalyst to enhance the potency of anode. For this purpose, various procedures and reduction conditions were used for self-made Pt(/PtRu)-catalysts preparation, including pH-adjusting, temperature-control, different support materials, altered Pt-loading content as well as fuel concentration in the electrochemical tests.
The electro-catalytical activity to methanol oxidation and the tolerance for CO-poisoning effect of self-made Pt(/PtRu)-catalysts were both measured with not only cyclic voltammetry (CV) but also chronoamperometry (CA), and afterwards the data were correlated with the results of XRD, BET, TEM, SEM, and XPS for the sake of confirming the relation between all of them. The self-made Pt(/PtRu)-catalysts, which behave better performance, were compared to the commercial ones namely E-tek Pt/C and also Pt-Ru/C. | en_US |