Zirconium-Based Metal-Organic Framework with 9-Connected Nodes for Ammonia Capture

Yongwei Chen; Xuan Zhang; Kaikai Ma; Zhijie Chen; Xingjie Wang; Julia Knapp; Selim Alayoglu; Fenfen Wang; Qibin Xia; Zhong Li; Timur Islamoglu; Omar K. Farha

doi:10.1021/acsanm.9b01534

Zirconium-Based Metal-Organic Framework with 9-Connected Nodes for Ammonia Capture

Yongwei Chen, Xuan Zhang, Kaikai Ma, Zhijie Chen, Xingjie Wang, Julia Knapp, Selim Alayoglu, Fenfen Wang, Qibin Xia, Zhong Li, Timur Islamoglu, Omar K. Farha^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

Construction of multifunctional metal-organic frameworks (MOFs) with asymmetric connectivity have the potential to expand the scope of their utilization. Herein, we report a robust microporous Zr-based MOF with 9-connected Zr₆ nodes, NU-300, assembled from low symmetry tricarboxylate ligands and Zr₆ nodes. As indicated by single-crystal X-ray diffraction analysis, there exist uncoordinated carboxylate groups in the structure of NU-300 that can participate in ammonia (NH₃) sorption through acid-base interactions which yield high uptake of NH₃ at low pressure regions (<0.01 bar). In situ infrared (IR) spectroscopy shows the interactions between Brønsted acidic sites and NH₃, which suggests that NU-300 can be used as a sorbent for NH₃ capture at low pressures.

Original language	English (US)
Pages (from-to)	6098-6102
Number of pages	5
Journal	ACS Applied Nano Materials
Volume	2
Issue number	10
DOIs	https://doi.org/10.1021/acsanm.9b01534
State	Published - Oct 25 2019

Keywords

9-connected Zr nodes
MOFs
NH capture
low symmetry tricarboxylate ligand
uncoordinated carboxylate groups

ASJC Scopus subject areas

Materials Science(all)

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10.1021/acsanm.9b01534

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title = "Zirconium-Based Metal-Organic Framework with 9-Connected Nodes for Ammonia Capture",

abstract = "Construction of multifunctional metal-organic frameworks (MOFs) with asymmetric connectivity have the potential to expand the scope of their utilization. Herein, we report a robust microporous Zr-based MOF with 9-connected Zr6 nodes, NU-300, assembled from low symmetry tricarboxylate ligands and Zr6 nodes. As indicated by single-crystal X-ray diffraction analysis, there exist uncoordinated carboxylate groups in the structure of NU-300 that can participate in ammonia (NH3) sorption through acid-base interactions which yield high uptake of NH3 at low pressure regions (<0.01 bar). In situ infrared (IR) spectroscopy shows the interactions between Br{\o}nsted acidic sites and NH3, which suggests that NU-300 can be used as a sorbent for NH3 capture at low pressures.",

keywords = "9-connected Zr nodes, MOFs, NH capture, low symmetry tricarboxylate ligand, uncoordinated carboxylate groups",

author = "Yongwei Chen and Xuan Zhang and Kaikai Ma and Zhijie Chen and Xingjie Wang and Julia Knapp and Selim Alayoglu and Fenfen Wang and Qibin Xia and Zhong Li and Timur Islamoglu and Farha, {Omar K.}",

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language = "English (US)",

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journal = "ACS Applied Nano Materials",

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publisher = "American Chemical Society",

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Zirconium-Based Metal-Organic Framework with 9-Connected Nodes for Ammonia Capture. / Chen, Yongwei; Zhang, Xuan; Ma, Kaikai; Chen, Zhijie; Wang, Xingjie; Knapp, Julia; Alayoglu, Selim; Wang, Fenfen; Xia, Qibin; Li, Zhong; Islamoglu, Timur; Farha, Omar K.

In: ACS Applied Nano Materials, Vol. 2, No. 10, 25.10.2019, p. 6098-6102.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Zirconium-Based Metal-Organic Framework with 9-Connected Nodes for Ammonia Capture

AU - Chen, Yongwei

AU - Zhang, Xuan

AU - Ma, Kaikai

AU - Chen, Zhijie

AU - Wang, Xingjie

AU - Knapp, Julia

AU - Alayoglu, Selim

AU - Wang, Fenfen

AU - Xia, Qibin

AU - Li, Zhong

AU - Islamoglu, Timur

AU - Farha, Omar K.

PY - 2019/10/25

Y1 - 2019/10/25

N2 - Construction of multifunctional metal-organic frameworks (MOFs) with asymmetric connectivity have the potential to expand the scope of their utilization. Herein, we report a robust microporous Zr-based MOF with 9-connected Zr6 nodes, NU-300, assembled from low symmetry tricarboxylate ligands and Zr6 nodes. As indicated by single-crystal X-ray diffraction analysis, there exist uncoordinated carboxylate groups in the structure of NU-300 that can participate in ammonia (NH3) sorption through acid-base interactions which yield high uptake of NH3 at low pressure regions (<0.01 bar). In situ infrared (IR) spectroscopy shows the interactions between Brønsted acidic sites and NH3, which suggests that NU-300 can be used as a sorbent for NH3 capture at low pressures.

AB - Construction of multifunctional metal-organic frameworks (MOFs) with asymmetric connectivity have the potential to expand the scope of their utilization. Herein, we report a robust microporous Zr-based MOF with 9-connected Zr6 nodes, NU-300, assembled from low symmetry tricarboxylate ligands and Zr6 nodes. As indicated by single-crystal X-ray diffraction analysis, there exist uncoordinated carboxylate groups in the structure of NU-300 that can participate in ammonia (NH3) sorption through acid-base interactions which yield high uptake of NH3 at low pressure regions (<0.01 bar). In situ infrared (IR) spectroscopy shows the interactions between Brønsted acidic sites and NH3, which suggests that NU-300 can be used as a sorbent for NH3 capture at low pressures.

KW - 9-connected Zr nodes

KW - MOFs

KW - NH capture

KW - low symmetry tricarboxylate ligand

KW - uncoordinated carboxylate groups

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Zirconium-Based Metal-Organic Framework with 9-Connected Nodes for Ammonia Capture

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Keywords

ASJC Scopus subject areas

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