Methanol Oxidation on Pt-based Electrodes

However, after 1980 the development of in situ infrared spectroscopic techniques have allowed the direct identification of adsorbed intermediates. In terms of methanol oxidation on R, electrochemically modulated infrared reflectance spectroscopy (EMIRS) led to the unambiguous identification of adsorbed CO as the poisoning species. Two adsorbed CO species were identified as being responsible for the poisoning phenomena (i) a linearly bonded species (IR absorption band around 2060 cm ) and (ii) a bridge-bonded species (a small band around 1850-1900 cm ). These results were 

A number of bimetallic electrocatalysts have been investigated in the context of methanol oxidation, including Pt/Sn , Pt/Rh ,Pt/Pd , and pt/Ru,85-86.87.88.89 promising bimetallic electrocatalyst identified was 

Pt/Ru which displayed a negative shift of the polarization curves and a decrease in the degree of poisoning compared with pure platinum. Pt/Sn also displays greater activity for methanol oxidation compared to pure Pt. However, it was not as promising as Pt/Ru catalyst. 

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Concerning methanol oxidation on Pt-based electrodes in acidic media, much effort was done during the last decades. For a detailed discussion, the reader is referred to several literature reviews (Iwasita, 2002 Koper et al, 2009 Markovic et al, 2002 Watanabe andUchida, 2009). To summarize, the mechanism for methanol oxidation involves two main steps ... 

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