期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 142, 期 36, 页码 15235-15239出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.0c06414
关键词
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资金
- EPSRC [EP/I011870]
- Royal Society
- National Natural Science Foundation of China
- University of Manchester
- Peking University
- European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme [742401]
- Royal Society Newton International Fellowship
- China Scholarship Council (CSC)
- EPSRC
- EPSRC [EP/P001386/1] Funding Source: UKRI
Nitrogen dioxide (NO2) is a toxic air pollutant, and efficient abatement technologies are important to mitigate the many associated health and environmental problems. Here, we report the reactive adsorption of NO2 in a redox-active metal-organic framework (MOF), MFM-300(V). Adsorption of NO2 induces the oxidation of V(III) to V(IV) centers in MFM-300(V), and this is accompanied by the reduction of adsorbed NO2 to NO and the release of water via deprotonation of the framework hydroxyl groups, as confirmed by synchrotron X-ray diffraction and various experimental techniques. The efficient packing of {NO2 center dot N2O4}(infinity) chains in the pores of MFM-300(V-IV) results in a high isothermal NO2 uptake of 13.0 mmol g(-1) at 298 K and 1.0 bar and is retained for multiple adsorption-desorption cycles. This work will inspire the design of redox-active sorbents that exhibit reductive adsorption of NO2 for the elimination of air pollutants.
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