High adsorption of ammonia in a titanium-based metal-organic framework

被引：5

作者：

Zeng, Xiangdi ^{[1
]}

Li, Jiangnan ^{[1
,2
]}

He, Meng ^{[1
]}

Lu, Wanpeng ^{[1
]}

Crawshaw, Danielle ^{[1
]}

Guo, Lixia ^{[1
,2
]}

Ma, Yujie ^{[1
]}

Kippax-Jones, Meredydd ^{[1
,3
]}

Cheng, Yongqiang ^{[4
]}

Manuel, Pascal ^{[5
]}

Rudic, Svemir ^{[5
]}

Frogley, Mark D. ^{[3
]}

Schroder, Martin ^{[1
]}

Yang, Sihai ^{[1
,2
]}

机构：

[1] Univ Manchester, Dept Chem, Manchester M13 9PL, England

[2] Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China

[3] Diamond Light Source, Harwell Sci Campus, Didcot OX11 0DE, Oxon, England

[4] Oak Ridge Natl Lab, Neutron Sci Directorate, Neutron Scattering Div, Oak Ridge, TN 37831 USA

[5] STFC Rutherford Appleton Lab, ISIS Neutron & Muon Facil, Didcot OX11 0QX, England

来源：

CHEMICAL COMMUNICATIONS | 2024年 / 60卷 / 46期

基金：

欧洲研究理事会; 英国工程与自然科学研究理事会; 美国国家科学基金会;

关键词：

SORBENTS;

D O I：

10.1039/d4cc01449a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the high adsorption of NH3 in a titanium-based metal-organic framework, MFM-300(Ti), comprising extended [TiO6]infinity chains linked by biphenyl-3,3 ',5,5 '-tetracarboxylate ligands. At 273 K and 1 bar, MFM-300(Ti) shows an exceptional NH3 uptake of 23.4 mmol g-1 with a record-high packing density of 0.84 g cm-3. Dynamic breakthrough experiments confirm the excellent uptake and separation of NH3 at low concentration (1000 ppm). The combination of in situ neutron powder diffraction and spectroscopic studies reveal strong, yet reversible binding interactions of NH3 to the framework oxygen sites. A robust titanium-based metal-organic framework, MFM-300(Ti), exhibits an exceptional NH3 adsorption of 23.4 mmol g-1 with a record-high packing density of 0.84 g cm-3, promoted by strong binding interactions of NH3 to the framework oxygen sites.

引用

页码：5912 / 5915

页数：5

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