Surfactant-assisted assembly of nanoscale zinc coordination compounds to enhance tandem conversion reactions in water
作者:Chao Huang、Kaifang Zhu、Yingying Zhang、Guizhen Lu、Zhichao Shao、Kuan Gao、Liwei Mi、Hongwei Hou
DOI:10.1039/c9dt03145f
日期:——
Zn-based CPs, [Zn3(idbt)2(4,4′-dmbpy)2]·H2O}n (1) and [Zn3(idbt)2(H2O)3]·H2O}n (2) (H3idbt = 5,5′-(1H-imidazole-4,5-diyl)-bis-(2H-tetrazole), 4,4′-dmbpy = 4,4′′-dimethyl-2,2′-bipyridine), were synthesized through solvothermal reactions. The morphologies and particle sizes of 1 and 2 could be controlled from large scale to nanoscale by regulating the amount of poly(vinyl alcohol) (PVA). Furthermore, for
精确控制配位聚合物(CP)的形态和尺寸对于将这些无机有机材料扩展到许多高级应用(尤其是非均相催化)至关重要。在这项工作中,两个基于Zn的CP,[Zn 3(idbt)2(4,4'-dmbpy)2 ]·H 2 O} n(1)和[Zn 3(idbt)2(H 2 O) )3 ]·H 2 O} n(2)(H 3 idbt = 5,5'-(1 H-咪唑-4,5-二基)-双-(2 H通过溶剂热反应合成4,4′-dmbpy = 4,4′′-二甲基-2,2′-联吡啶)。通过调节聚乙烯醇(PVA)的量,可以将1和2的形貌和粒径控制在大范围到纳米级。此外,对于硝基甲基苯向苯甲酸的转化反应,纳米级1和2的催化性能比大型1和2的高效得多。由于具有易于获得的纳米级颗粒中的活性位点的优点,该活性位点通过最小化扩散距离为转化反应提供了可调的和可功能化的平台,但对选择性却没有多大作用。