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- W2003965894 abstract "In this paper we report a surface science study aimed at fundamental understanding of supporting Pt on the surfaces of tungsten carbides. The reaction pathways of methanol, water, and carbon monoxide over platinum-modified surfaces are studied using temperature-programmed desorption (TPD), high-resolution electron energy loss spectroscopy (HREELS), and Auger electron spectroscopy (AES). The decomposition of methanol occurs readily on submonolayer Pt-modified surfaces. The presence of low-coverage Pt on effectively inhibits the undesirable pathway leading to production of on the unmodified surface. In addition, Pt-modified surfaces are active toward the dissociation of water. Furthermore, their surfaces display a relatively low desorption temperature for carbon monoxide at . The results on the Pt-modified surfaces are also compared to our earlier studies on the Pt-modified and PVD (physical vapor deposition) synthesized WC surfaces. Overall, the comparison of , , and surfaces confirms a synergistic effect by supporting submonolayer Pt on tungsten carbides, leading to higher activity toward the dissociation of methanol and water and a weaker bonding of carbon monoxide. Such a synergistic effect should be advantageous for the potential application of Pt-modified carbides as fuel cell electrocatalysts." @default.
- W2003965894 created "2016-06-24" @default.
- W2003965894 creator A5034358731 @default.
- W2003965894 creator A5043274376 @default.
- W2003965894 date "2005-01-01" @default.
- W2003965894 modified "2023-10-16" @default.
- W2003965894 title "Potential Application of Tungsten Carbides as Electrocatalysts: Synergistic Effect by Supporting Pt on C∕W(110) for the Reactions of Methanol, Water, and CO" @default.
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- W2003965894 doi "https://doi.org/10.1149/1.1938107" @default.
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