Chemical Sciences Division and ‡Materials Science and Technology Division, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States.
Nano Lett. 2015 Feb 11;15(2):823-8. doi: 10.1021/nl504780j. Epub 2015 Jan 28.
Nanoporous ionic organic networks (PIONs) with a high ionic density (three cation-anion pairs per unit) have been synthesized by a facile SN2 nucleophilic substitution reaction. Owing to the electrostatic and steric effect, those ionic networks with porous channels can stabilize and support gold (Au) nanoparticles (NPs) in 1-2 nm. The Au@PION hybrid materials used as a heterogeneous catalyst were highly active, selective, and stable in the aerobic oxidation of saturated alcohols.
通过简便的 SN2 亲核取代反应合成了具有高离子密度（每个单元三个阳离子-阴离子对）的纳米多孔离子有机网络（PIONs）。由于静电和空间位阻效应，那些具有多孔通道的离子网络可以在 1-2nm 内稳定和支撑金（Au）纳米颗粒（NPs）。作为多相催化剂使用的 Au@PION 杂化材料在饱和醇的有氧氧化中具有高活性、选择性和稳定性。
