2026-10-27 中国科学院（CAS）
＜関連情報＞
- https://english.cas.cn/newsroom/research-news/202610/t20261026_1209412.shtml
- https://academic.oup.com/nsr/advance-article/doi/10.1093/nsr/nwag556/8788025
N₂とO₂を高付加価値のC–N–O化合物に変換する Upgrading N2 and O2 into valuable C–N–O chemicals
Di Li , Ziming Liu , Lingxing Zan , Chenxin Wu , Lei Hua , Haiyang Li , Zhang-Jie Shi , Ping Chen , Zhenfeng Xi , Liang Yu …
National Science Review Published: 08 September 2026
DOI:https://doi.org/10.1093/nsr/nwag556
Figure 5. Schematic illustration of the direct conversion of air and phenol to nitrophenol via the PUC process.
Abstract
Directly using abundant air as nitrogen and oxygen source for the co-construction of C–N and N–O bonds under mild conditions is highly significant for establishing a sustainable route of synthesizing high-value C–N–O chemicals. However, the efficient and controllable activation of N2, O2, and carbon source for the selective C–N and N–O coupling in a one-step process remains a formidable challenge. Herein, we report a plasma–ultrasound catalytic process that enables direct selective conversion of air and phenol to nitroaromatic chemicals (nitrosophenol and nitrophenol) under mild conditions, delivering an overall yield of 8.1% with a high selectivity of 92.5% using a CeO2 catalyst. Mechanistic investigations reveal a crucial effect of air plasma in generating reactive oxygen and NOx species and triggering the subsequent phenol oxidization and nitration reactions in the solution. Coupling ultrasound and CeO2 catalyst in the liquid phase further promotes the formation of reactive species and targeted nitroaromatic products combined with the enhancement of both mass transfer and reaction kinetics by the ultrasonic cavitation effect.
