Ordered Porous Pd Octahedra Covered with Monolayer Ru Atoms

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• 作者：Jingjie Ge ; Dongsheng He ; Lei Bai ; Rui You ; Haiyuan Lu ; Yue Lin ; Chaoliang Tan ; Yan-Biao Kang ; Bin Xiao ; Yuen Wu ; Zhaoxiang Deng ; Weixin Huang ; Hua Zhang ; Xun Hong ; Yadong Li
• 刊名：Journal of the American Chemical Society
• 出版年：2015
• 出版时间：November 25, 2015
• 年：2015
• 卷：137
• 期：46
• 页码：14566-14569
• 全文大小：306K
• ISSN：1520-5126

文摘

Monolayer Ru atoms covered highly ordered porous Pd octahedra have been synthesized via the underpotential deposition and thermodynamic control. Shape evolution from concave nanocube to octahedron with six hollow cavities was observed. Using aberration-corrected high-resolution transmission electron microscopy and X-ray photoelectron spectroscopy, we provide quantitative evidence to prove that only a monolayer of Ru atoms was deposited on the surface of porous Pd octahedra. The as-prepared monolayer Ru atoms covered Pd nanostructures exhibited excellent catalytic property in terms of semihydrogenation of alkynes.