Synthesis, Characterization, and Physicochemical Properties of Well-Coupled Y2O3 Nanobelt−Ag Nanocrystals Nanocomposites

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• 作者：Min Han ; Xun Li ; Baojun Li ; Naien Shi ; Kunji Chen ; Jianming Zhu ; Zheng Xu
• 刊名：Journal of Physical Chemistry C
• 出版年：2008
• 出版时间：November 20, 2008
• 年：2008
• 卷：112
• 期：46
• 页码：17893-17898
• 全文大小：315K
• 年卷期：v.112,no.46(November 20, 2008)
• ISSN：1932-7455

文摘

In this paper, Y₂O₃ nanobelt−Ag nanocrystals multifunctional nanocomposites have been prepared by thermal decomposition of solid metal nitrate salts in dodecylamine and 1-octadecene mixed solvents from room temperature to 320 °C. For each synthesis, gram-scale nanocomposites can be easily produced. Microstructure characterization results demonstrate that Ag nanocrystals are well-dispersed and partially embedded in Y₂O₃ nanobelts to form well-coupled nanocomposites. Significant enhancement of dielectric performance and modification of optical absorption as well as the excellent catalytic hydrogenation performance are observed in the synthesized nanocomposites compared with those of bare Y₂O₃ nanobelts or pure Ag nanocrystals.