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聚胺覆盖的18环通道酸具有高容量吸和二氧化碳捕获

Ming-Jhe Sie¹, Chia-Her Lin², Sue-Lein Wang¹

¹Department of Chemistry, National Tsing Hua University , Hsinchu 30013, Taiwan.

Journal of the American Chemical Society

|May 17, 2016

概括

研究人员开发了一种新型酸盐NTHU-15, 这种材料具有出色的和二氧化碳吸附性,可用于烟气清洁.

科学领域:

材料科学
无机化学
纳米技术

背景情况:

开发具有大通道的多孔无机框架是一个挑战.
现有的超大通道结构经常受到有机模板的孔隙堵塞.
金属酸盐具有气体吸附应用的潜力.

研究的目的:

合成一种具有异常大通道的新型无机框架.
为了研究新材料的气体吸附特性.
评估其碳捕获应用的潜力.

主要方法:

一个独特的酸框架的合成,NTHU-15.
使用"模板覆盖"策略来最大限度地利用道空间.
在不同温度下对H2和CO2进行气体吸附测量.

主要成果:

在酸中,NTHU-15具有最大的18个环通道.
达到高H2吸收 (3.8 mmol/g在77K) 和CO2吸附 (2.4 mmol/g在298K).
与其他超大通道无机框架相比,表现出更高的性能.

结论:

NTHU-15克服了模板材料中的"真正的开放"框架挑战.
该材料具有实际的气体吸附功能.
高稳定性和二氧化碳选择性表明烟气清洁的潜力.

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