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Capture of nitrogen dioxide and conversion to nitric acid in a porous metal–organic framework

Capture of nitrogen dioxide and conversion to nitric acid in a porous metal–organic framework
Capture of nitrogen dioxide and conversion to nitric acid in a porous metal–organic framework

Air pollution by nitrogen oxides, NOx, is a major problem, and new capture and abatement technologies are urgently required. Here, we report a metal–organic framework (Manchester Framework Material 520 (MFM-520)) that can efficiently confine dimers of NO2, which results in a high adsorption capacity of 4.2 mmol g–1 (298 K, 0.01 bar) with full reversibility and no loss of capacity over 125 cycles. Treatment of NO2@MFM-520 with water in air leads to a quantitative conversion of the captured NO2 into HNO3, an important feedstock for fertilizer production, and fully regenerates MFM-520. The confinement of N2O4 inside nanopores was established at a molecular level, and the dynamic breakthrough experiments using both dry and humid NO2 gas streams verify the excellent stability and selectivity of MFM-520 and confirm its potential for precious-metal-free deNOx technologies.

1755-4330
1085-1090
Li, Jiangnan
968751ec-e55e-4f3d-a7fb-587965948338
Han, Xue
6fe07b0a-df76-4bc4-b9b7-8b3b4bbad3ab
Zhang, Xinran
67276c76-1d6d-4b1c-80ab-45b1856caea5
Sheveleva, Alena M.
d65fe1e6-2f92-4bbd-8e3d-79662ed52095
Cheng, Yongqiang
c2dc141e-3db9-41b6-9a9d-d8b26233b0fa
Tuna, Floriana
e2195c44-a70e-42b1-9166-4d02d24dfbcf
McInnes, Eric J.L.
bba4b839-d79c-4561-b6e7-c002cc251ff4
McCormick McPherson, Laura J.
f1c2f8cd-adcc-4bbf-9289-0b33a006d2bb
Teat, Simon J.
fd6e6d90-b0c2-4463-91d2-5c72e212d414
Daemen, Luke L.
6dee9ae1-5f14-49b0-8fb5-8f5b2566edd2
Ramirez-Cuesta, Anibal J.
34895c52-7d2f-4576-8da7-8b326efb6fbd
Schröder, Martin
467922b1-a6f5-45e0-b0b8-95f3cf76c2d5
Yang, Sihai
2b65fe19-0e5a-454a-a135-d2f13fabad79
Li, Jiangnan
968751ec-e55e-4f3d-a7fb-587965948338
Han, Xue
6fe07b0a-df76-4bc4-b9b7-8b3b4bbad3ab
Zhang, Xinran
67276c76-1d6d-4b1c-80ab-45b1856caea5
Sheveleva, Alena M.
d65fe1e6-2f92-4bbd-8e3d-79662ed52095
Cheng, Yongqiang
c2dc141e-3db9-41b6-9a9d-d8b26233b0fa
Tuna, Floriana
e2195c44-a70e-42b1-9166-4d02d24dfbcf
McInnes, Eric J.L.
bba4b839-d79c-4561-b6e7-c002cc251ff4
McCormick McPherson, Laura J.
f1c2f8cd-adcc-4bbf-9289-0b33a006d2bb
Teat, Simon J.
fd6e6d90-b0c2-4463-91d2-5c72e212d414
Daemen, Luke L.
6dee9ae1-5f14-49b0-8fb5-8f5b2566edd2
Ramirez-Cuesta, Anibal J.
34895c52-7d2f-4576-8da7-8b326efb6fbd
Schröder, Martin
467922b1-a6f5-45e0-b0b8-95f3cf76c2d5
Yang, Sihai
2b65fe19-0e5a-454a-a135-d2f13fabad79

Li, Jiangnan, Han, Xue, Zhang, Xinran, Sheveleva, Alena M., Cheng, Yongqiang, Tuna, Floriana, McInnes, Eric J.L., McCormick McPherson, Laura J., Teat, Simon J., Daemen, Luke L., Ramirez-Cuesta, Anibal J., Schröder, Martin and Yang, Sihai (2019) Capture of nitrogen dioxide and conversion to nitric acid in a porous metal–organic framework. Nature Chemistry, 11 (12), 1085-1090. (doi:10.1038/s41557-019-0356-0).

Record type: Article

Abstract

Air pollution by nitrogen oxides, NOx, is a major problem, and new capture and abatement technologies are urgently required. Here, we report a metal–organic framework (Manchester Framework Material 520 (MFM-520)) that can efficiently confine dimers of NO2, which results in a high adsorption capacity of 4.2 mmol g–1 (298 K, 0.01 bar) with full reversibility and no loss of capacity over 125 cycles. Treatment of NO2@MFM-520 with water in air leads to a quantitative conversion of the captured NO2 into HNO3, an important feedstock for fertilizer production, and fully regenerates MFM-520. The confinement of N2O4 inside nanopores was established at a molecular level, and the dynamic breakthrough experiments using both dry and humid NO2 gas streams verify the excellent stability and selectivity of MFM-520 and confirm its potential for precious-metal-free deNOx technologies.

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More information

Accepted/In Press date: 13 September 2019
e-pub ahead of print date: 22 November 2019
Published date: 1 December 2019

Identifiers

Local EPrints ID: 438091
URI: http://eprints.soton.ac.uk/id/eprint/438091
ISSN: 1755-4330
PURE UUID: d7ec975c-5619-4dbf-ad1b-0161d8fb935a
ORCID for Laura J. McCormick McPherson: ORCID iD orcid.org/0000-0002-6634-4717

Catalogue record

Date deposited: 28 Feb 2020 17:31
Last modified: 26 Nov 2021 03:21

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Contributors

Author: Jiangnan Li
Author: Xue Han
Author: Xinran Zhang
Author: Alena M. Sheveleva
Author: Yongqiang Cheng
Author: Floriana Tuna
Author: Eric J.L. McInnes
Author: Simon J. Teat
Author: Luke L. Daemen
Author: Anibal J. Ramirez-Cuesta
Author: Martin Schröder
Author: Sihai Yang

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