標題: Real Time Observation of the Formation of Hollow Nanostructures through Solid State Reactions
作者: Lai, Huang-Yen
Huang, Chun-Wei
Chiu, Chung-Hua
Wang, Chun-Wen
Chen, Jui-Yuan
Huang, Yu-Ting
Lu, Kuo-Chang
Wu, Wen-Wei
材料科學與工程學系
Department of Materials Science and Engineering
公開日期: 6-五月-2014
摘要: We demonstrate the formation of hollow nickel germanide nanostructures of Ni-Ge core-shell nanoparticles by solid state reactions. The structural evolutions of nickel germanide hollow nanostructures have been investigated in real-time ultrahigh vacuum transmission electron microscopy (UHV-TEM). Annealed above 450 degrees C, the nonequilibrium interdiffusion of core and shell species occurred at the interface; thus, Ni germanide hollow nanostructures were formed by solid state reactions involving the Kirkendall effect. In addition, the different hollow nanostructures formed from different core diameters of Ni-Ge core-shell nanoparticles have been studied. Also, we propose the mechanism with effects of the size and annealing duration on the solid state reactions based on the Kirkendall effect.
URI: http://dx.doi.org/10.1021/ac500134u
http://hdl.handle.net/11536/24430
ISSN: 0003-2700
DOI: 10.1021/ac500134u
期刊: ANALYTICAL CHEMISTRY
Volume: 86
Issue: 9
起始頁: 4348
結束頁: 4353
顯示於類別:期刊論文


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  1. 000335719900041.pdf