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重新审视斯托伯方法:二氧化外中的不均性
Yi Jian Wong1, Liangfang Zhu, Wei Shan Teo
1Division of Chemistry and Biological Chemistry, Nanyang Technological University, Singapore 637371.
Journal of the American Chemical Society
|July 8, 2011
概括
纳米颗粒上的贝并不均. 一种新的方法使这些外变硬,使得可以在没有模板的情况下创建先进的黄纳米结构.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 化学 化学 化学
背景情况:
- 斯托伯方法是合成二氧化纳米颗粒的常用技术.
- 了解二氧化外的化学特性对于先进的纳米材料制造至关重要.
研究的目的:
- 为了研究由斯托贝尔方法形成的二氧化贝的不均性质.
- 开发用于硬化二氧化外和创建新型纳米结构的方法.
主要方法:
- 外的特性不均性.
- 使用热水对内部的二氧化层进行选择性蚀刻.
- 硬化技术的发展.
- 使用开发的方法制造黄纳米结构.
主要成果:
- 贝表现出不均的结构,外层更坚固,内层更软.
- 热水可以选择性地蚀刻内部的层.
- 开发了有效的硬化的方法.
- 建立了多功能,无模板的方法来制造黄皮纳米结构.
结论:
- 斯托伯衍生的贝的化学不均性可以被利用用于控制的纳米结构制造.
- 硬化贝和选择性蚀刻为创建复杂的黄架构提供了新的途径.
- 这些发现为先进的纳米材料设计提供了多功能和无模板的策略.
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