金属有机骨架
氢
金属
工作(物理)
材料科学
纳米技术
化学
有机化学
冶金
工程类
机械工程
吸附
作者
Zongjing Xiao,Pengfei Li,Beibei Sun,Xinhe Bao,Lei Gan,Huajun Yang
出处
期刊:Chemical Science
[Royal Society of Chemistry]
日期:2025-01-01
卷期号:16 (33): 14919-14923
摘要
The integration of different types of frameworks into one would provide a unique opportunity for the development of crystalline frameworks that can combine the unique advantages of each. In this work, we successfully realize the integration of metal-organic frameworks (MOFs) and hydrogen-bonded organic frameworks (HOFs) through the synthesis of two hydrogen-bonded metal-organic frameworks, namely NNM-1(M) (M = Cu or Ni). The structures of NNM-1 are built on (4, 4)-squared coordinative metal-organic layers. Between the layers, two adjacent protonated carboxylic groups serve as both hydrogen donors and acceptors, leading to the formation of hydrogen-bonded pillars with R 2 2(8) dimeric hydrogen bonding, the most common hydrogen-bonded motif in HOFs. It was found that water plays a vital role in the structural transformation from 3D MOFs to H-MOFs here. Under a low pressure of 0.1 bar, the material NNM-1(Cu) can adsorb 4.84 mmol g-1 of NH3, making it a promising adsorbent for ammonia capture.
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