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DeNOx on MOF.pdf (1.96 MB)
Room Temperature Reduction of Nitrogen Oxide to Nitrogen on MetalOrganic Frameworks
Preprints are manuscripts made publicly available before they have been submitted for formal peer review and publication. They might contain new research findings or data. Preprints can be a draft or final version of an author's research but must not have been accepted for publication at the time of submission.
submitted on 07.09.2020 and posted on 08.09.2020by Marco Daturi, Vanessa BLASIN-AUBE, Ji Wong Yoon, Philippe Bazin, Alexandre Vimont, Jong-San Chang, Young Kyu Hwang, You-Kyong Seo, Seunghun Jang, Hyunju Chang, Stefan Wuttke, Masaaki Haneda, Patricia Horcajada, Christian Serre
Air pollution is an epochal concern, particularly in urban areas, and is linked to combustion
. The emission of nitrogen oxides (NOx) constitutes a critical environmental
problem, and it can affect severely human health2,3,4
. At ambient temperature and pressure
NOx decomposition is thermodynamically favoured; however, this process is kinetically
inhibited, owing to a high activation energy5,6
. To date, no reported catalysts have had the
required properties to lower the activation energy of this process without the help of coreacting agents and high temperatures7,8,9
. Here, we show that NO conversion to molecular
nitrogen can be achieved at room temperature in the presence of O2 and H2O vapour, and in
the absence of any further reducing agent, using iron-based Metal-Organic Frameworks
(MOFs). Further, we demonstrate that MOFs work similarly to enzymes, but are stable in
environments unfriendly to living matter. These findings open large perspectives on the
solution of stringent problems in chemistry, such as the removal of pollutants or the activation
of highly stable molecules.