Abstract
Recently published reports suggest that TiN may be a suitable support for Pt and Pt-based electrocatalysts in proton exchange membrane (PEM) fuel cells.[1] In particular, TiN is believed to exhibit higher corrosion resistance compared to high area carbons (HAC). This contribution seeks to gain insight into the nature of the interactions of metallic Pt and TiN using X-ray photoelectron spectroscopy (XPS) to probe the chemical state of the elements involved as the interface is formed.
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