Brede F A, Mandel K, Schneider M, Sextl G, Müller-Buschbaum K
Institute for Inorganic Chemistry, Am Hubland, 97074 Wuerzburg, Germany.
Chem Commun (Camb). 2015 May 21;51(41):8687-90. doi: 10.1039/c5cc01961c.
An innovative mechanochemical method is reported for the in situ formation of crystalline metal-complexes on the surface of superparamagnetic nanocomposite microparticles. The process is demonstrated for coating Fe3O4 multicore-silica matrix particles with the 1,2,4-1H-triazole complex [ZnCl2(TzH)2]. The use of mechanochemistry demonstrates a flexible process to obtain functional shells on magnetic particle cores without the need for complicated surface-functionalisation reactions in solution. Simple mixing of the desired shell-precursors ZnCl2 and 1,2,4-1H-triazole (TzH) with the magnetic particles in a ball mill is sufficient to tailor the particle surfaces with novel functionalities while retaining the superparamagnetic behaviour.
报道了一种创新的机械化学方法，用于在超顺磁性纳米复合微粒表面原位形成结晶金属配合物。该方法通过用1,2,4-1H-三唑配合物[ZnCl2(TzH)2]包覆Fe3O4多核-二氧化硅基质颗粒得以证明。机械化学的应用展示了一种灵活的方法，可在磁性颗粒核上获得功能壳层，而无需在溶液中进行复杂的表面功能化反应。在球磨机中将所需的壳层前体ZnCl2和1,2,4-1H-三唑（TzH）与磁性颗粒简单混合，就足以在保留超顺磁性行为的同时，用新功能定制颗粒表面。
