期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 20, 期 33, 页码 6982-6989出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0jm00969e
关键词
-
资金
- Ministry of Education of Korea
- Korea government (MEST) [2010-0000797]
We report a method for the synthesis of Zn structures with a variety of morphologies through a spontaneous solution phase reaction without application of an electropotential under ambient conditions. We also describe, in detail, the influence of several experimental conditions on the morphology and microstructure of the Zn structures. The morphology of the Zn structures transitioned from hexagonal disks to dendritic forms as the reaction temperature was increased due to an increase in the driving force for Zn structure formation (over a temperature range from room temperature, 22 degrees C, to 95 degrees C). The size of the Zn structures was controlled by adjusting the concentration of zinc acetate dihydrate added to the reaction solution. When the concentration of zinc salt was reduced, smaller Zn structures were synthesized. Control experiments revealed that the aluminium layer, ammonia additions, and ammonia concentration were key factors for the formation of Zn metal structures. A zinc ion complex, Zn(NH3)(4)(2+), played a critical role in the formation of the Zn structures. Zn nanowires were synthesized in the presence of a 1.5 mu m thick Al layer substrate. Based on these observations, we propose possible formation mechanisms for the spontaneous assembly of the various Zn structures.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据