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ACS Appl Mater Interfaces. 2013 May;5(9):3952-8. doi: 10.1021/am4006918. Epub 2013 Apr 23.

Fabrication of noble-metal catalysts with a desired surface wettability and their applications in deciphering multiphase reactions.

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  • 1Nano-materials and Chemistry Key Laboratory, Wenzhou University, Wenzhou, Zhejiang 325027, People's Republic of China.


Noble-metal Pd and Pt catalysts with a wide range of surface wettability were fabricated through an electrochemical approach and were characterized with scanning electron microscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, and atomic force microscopy. The importance of surface wettability of solid catalysts in multiphase reactions-especially their correlation to the nature of the studied chemical system-was investigated by reducing oxygen in an alkaline solution and oxidizing hydrogen peroxide and sodium formate in alkaline or buffered solutions at the as-prepared catalysts. These experiments illustrate that the nature of a multiphase reaction plays a critical role in determining the influence of surface wettability on the catalyst performance, providing a unique approach to decipher the reaction process. The investigation allows us to gain new insights into the electrochemical oxidation of sodium formate.

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