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

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

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

32 Цитирования (Scopus)


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.

Язык оригиналаанглийский
Страницы (с-по)1085-1090
Число страниц6
ЖурналNature Chemistry
Номер выпуска12
СостояниеОпубликовано - 1 дек 2019


Подробные сведения о темах исследования «Capture of nitrogen dioxide and conversion to nitric acid in a porous metal–organic framework». Вместе они формируют уникальный семантический отпечаток (fingerprint).