Ultrastable and Highly Catalytically Active N‐Heterocyclic‐Carbene‐Stabilized Gold Nanoparticles in Confined Spaces
作者:Xing‐Xing Gou、Tong Liu、Yao‐Yu Wang、Ying‐Feng Han
DOI:10.1002/anie.202006569
日期:2020.9.14
catalytically active, cavity‐hosted, dispersed poly‐N‐heterocyclic carbene (NHC)‐anchored gold NPs. Owing to the stabilization of the NHC ligands and the effective confinement of the cage cavities, the as‐prepared poly‐NHC‐shell‐encapsulated AuNPs displayed promising stability towards heat, pH, and chemical regents. Most notably, all the Au@PCCs (PCC=polycarbene cage) exhibited excellent catalytic activities
控制纳米粒子(NPs)的大小和表面功能化可以导致性能和适用性的提高。在本文中,我们证明了金属卡宾模板法(MCTA)合成不同大小,每个均带有多个咪唑基团的高稳固性和可溶性三维聚咪唑笼(PIC)的效率,并将它们用作模板来合成和稳定化催化活性,空洞型,分散的聚N杂环卡宾(NHC)锚定的金纳米颗粒。由于NHC配体的稳定和笼腔的有效封闭,制备的聚NHC壳包裹的AuNP对热,pH和化学试剂表现出良好的稳定性。最值得注意的是,所有Au @ PCC(PCC =聚碳烯笼)在各种化学反应中均表现出出色的催化活性,