Selective oxidation of Pd and compositional reconstruction in Pd70Ag30 alloy nanoparticles

Kuan Wen Wang, Shu Ru Chung, Tsong P. Perng

研究成果: 雜誌貢獻期刊論文同行評審

8 引文 斯高帕斯(Scopus)

摘要

The Pd70Ag30 alloy nanoparticles were heated in air at 250-450 °C. During heating, segregation of Ag to the surface driven by its lower surface energy competes with the oxidation of Pd. At 250 °C, selective oxidation of Pd occurred preferentially, and the formation of large free Ag crystallites was observed. As temperature increased, oxidation of Pd became more intensive and dominating, which attracted more Pd to the surface for reaction, resulting in fewer and smaller free Ag particles on the surface.

原文???core.languages.en_GB???
頁(從 - 到)60-62
頁數3
期刊Journal of Alloys and Compounds
417
發行號1-2
DOIs
出版狀態已出版 - 29 6月 2006

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