通过先进的传输电子显微镜研究金属有机框架的进展
Anqi Zheng1, Kuibo Yin1, Rui Pan1
1SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, China.
Nanomaterials (Basel, Switzerland)
|June 10, 2023
概括
先进的传输电子显微镜 (TEM) 技术使金属有机框架 (MOFs) 的原子尺度表征成为可能. 本综述详细介绍了最小化电子束损伤的方法,并分析了MOF微结构,以改进材料设计.
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:
- 金属有机框架 (MOF) 具有独特的周期结构,有利于各种应用.
- 了解MOF结构-活动关系是开发新材料的关键.
- 传输电子显微镜 (TEM) 提供了对MOF微观结构的原子规模洞察力.
研究的目的:
- 审查用于MOF表征的先进TEM技术.
- 讨论在MOF中减轻电子束诱导损伤的策略.
- 突出现场TEM应用程序来研究MOF动态.
主要方法:
- 低剂量TEM和冷TEM以尽量减少辐射损伤.
- 用于结构分析的三维电子衍射.
- 直接检测电子计数摄像头和iDPC-STEM用于高分辨率成像.
主要成果:
- 展示了用于原子尺度MOF微结构分析的先进TEM技术.
- 通过现场TEM,了解在工作条件下的MOF微结构演变.
- 确定MOF结构研究中的关键研究进展和里程碑.
结论:
- 先进的TEM对于理解MOF结构-属性相关性至关重要.
- 在现场的TEM提供了对各种刺激下的MOF行为的动态洞察.
- 在MOF研究中TEM的未来前景是有希望的.
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