Research on Zr-based metal-organic frameworks for NH3 adsorption

被引：0

作者：

Wang Y. ^{[1
]}

Xiong Q. ^{[1
]}

Chen Y. ^{[1
,2
]}

Yang J. ^{[1
,2
]}

Li L. ^{[1
,2
,3
]}

Li J. ^{[1
,2
,3
]}

机构：

[1] College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan

[2] Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan

[3] Key Laboratory of Coal Science and Technology, Taiyuan University of Technology, Taiyuan

来源：

Huagong Xuebao/CIESC Journal | 2022年 / 73卷 / 04期

关键词：

Cycling ability; Metal-organic framework; NH[!sub]3[!/sub] adsorption; Stability; Zr-based series;

D O I：

10.11949/0438-1157.20220021

中图分类号：

学科分类号：

摘要：

Metal-organic framework (MOF) has been developed rapidly in the fields of gas adsorption and storage in recent years, but they are unsatisfactory in the adsorption of strong corrosive gas ammonia (NH3) due to structural instability. Considering NH3 is the only carbon-free chemical energy carrier, developing efficient ammonia storage technology to carry hydrogen is an effective technology to reduce carbon dioxide emissions. MOFs exhibit great prospects for adsorption and storage of NH3 due to their high surface area and structural diversity advantages. NH3 has a lone pair of electrons, which will attack the coordination bond formed between the metal ion and the ligand, resulting in the structural destruction of MOFs. Herein, the structural characteristics, stability, and NH3 adsorption properties of Zr-based metal-organic frameworks, including UiO-66, NU-1000, MOF-801, and MOF-808, were investigated by experiments and computational simulations. The results showed that UiO-66 has excellent structural stability in NH3 adsorption with a high uptake of 13.04, 6.38 and 9.65 mmol/g. However, Due to the limited stability and low adsorption capacity, NU-1000 and MOF-801 are not suitable for ammonia adsorption under the humid environment. Conversely, the structure of UiO-66 and MOF-808 is very stable, which can be used in NH3 adsorption and storage applications both in dry and humid NH3 environments. © 2022, Editorial Board of CIESC Journal. All right reserved.

引用

页码：1772 / 1780

页数：8

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