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使用金属氧化物颗粒和原子层沉积薄膜模板,轻松将氧双盐转化为金属有机框架

Junjie Zhao¹, William T Nunn¹, Paul C Lemaire¹

¹Department of Chemical and Biomolecular Engineering, North Carolina State University , Raleigh, North Carolina 27695, United States.

Journal of the American Chemical Society

|October 13, 2015

概括

一种新的氧双盐 (HDS) 中间体使金属有机框架 (MOF) 在室温下快速合成. 这一突破为工业应用实现了前所未有的时空产量.

科学领域:

材料科学
化学工程
纳米技术

背景情况:

金属有机框架 (MOF) 的工业应用受到缓慢的合成方法的阻碍.
可扩展和高效的MOF生产需要快速的室温合成技术.

研究的目的:

为MOF开发一个快速的室温合成方法.
展示新合成方法的多功能性和工业潜力.

主要方法:

在现场从ZnO中形成 (Zn,Cu) 二盐 (HDS) 的中间体.
使用HDS进行HKUST-1 (Cu3(BTC) 的快速 (<1分钟) 室温增长.
与其他MOF (Cu-BDC,ZIF-8,IRMOF-3) 和各种基质显示合成通用性.

主要成果:

对于HKUST-1,实现的时空产量>3 × 10^4 kg·m^-3·d^-1,一个数量级的改进.
由HDS的高离子交换率驱动的超快速MOF形成.
在各种材料上制造的MOF图案和密集涂层,包括具有高毒气吸附能力的功能化纤维.

结论:

HDS中间体为室温MOF合成提供了通用和快速的途径.
这种方法显著提高了工业实施的MOF生产效率.
开发的MOF涂层对气体吸附和复合材料应用具有前景.

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