A versatile cooperative template-directed coating method to construct uniform microporous carbon shells for multifunctional core-shell nanocomposites
A versatile cooperative template-directed coating method to construct uniform microporous carbon shells for multifunctional core-shell nanocomposites
复制标题
一种多功能协同模板导向涂层方法，用于构建多功能核壳纳米复合材料的均匀微孔碳壳
DOI：
10.1039/c3nr34041d
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发表时间：
2013-01-01
期刊：
影响因子：
6.7
通讯作者：
Huo, Qisheng
中科院分区：
文献类型：
--
作者：
Guan, Buyuan;Wang, Xue;Huo, Qisheng
提出了一种非常简单的协同模板定向涂覆方法，用于制备核壳、空心和蛋黄壳微孔碳纳米复合材料。特别是，涂层过程中使用的阳离子表面活性剂C(16)TMA（+）中心点Br改善了反应介质中的芯分散，并作为介观结构间苯二酚-甲醛树脂形成的软模板，从而在大多数表面性能不同的功能芯上形成均匀的聚合物和微孔碳壳涂层。纳米复合材料的芯径和壳厚可以精确定制。这种方法具有高度的可重复性和可扩展性。几克聚合物和碳纳米复合材料可以通过简单的一锅反应很容易地制备出来。Au@hydrophobic微孔碳蛋黄壳催化剂比亲水的4-硝基苯酚更有利于硼氢化钠还原疏水性硝基苯，这使得这种类型的catalyst@carbon蛋黄壳复合材料有希望成为疏水性反应的选择性催化剂。
A very simple cooperative template-directed coating method is developed for the preparation of core-shell, hollow, and yolk-shell microporous carbon nanocomposites. Particularly, the cationic surfactant C(16)TMA(+)center dot Br used in the coating procedure improves the core dispersion in the reaction media and serves as the soft template for mesostructured resorcinol-formaldehyde resin formation, which results in the uniform polymer and microporous carbon shell coating on most functional cores with different surface properties. The core diameter and the shell thickness of the nanocomposites can be precisely tailored. This approach is highly reproducible and scalable. Several grams of polymer and carbon nanocomposites can be easily prepared by a facile one-pot reaction. The Au@hydrophobic microporous carbon yolk-shell catalyst favors the reduction of more hydrophobic nitrobenzene than hydrophilic 4-nitrophenol by sodium borohydride, which makes this type of catalyst@carbon yolk-shell composites promising nanomaterials as selective catalysts for hydrophobic reactants.