[Analysis Case] Analysis of Catalysts for Fuel Cells
Chemical state analysis using XPS and morphological observation using TEM.
The electrodes of fuel cells have a structure in which Pt particles, serving as the catalyst, are supported on a carbon carrier. For the evaluation of Pt, XPS analysis is effective for state analysis, while TEM observation is useful for morphological observation. These methods can also be used to assess the degradation of Pt catalysts, such as oxidation (poisoning) and aggregation (decrease in specific surface area). By reconstructing images taken from different angles, a three-dimensional image of the Pt particles is obtained.
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Applications/Examples of results
Analysis of fuel cells.