The Education Ministry Key Laboratory of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China.
J Am Chem Soc. 2012 Feb 1;134(4):2325-31. doi: 10.1021/ja210270m. Epub 2012 Jan 19.
Described here is a new and highly general strategy for multiple-template (multitemplate) patterning. This process is significant because it allows us to create various unusual shapes such as solid spheres, yolk-shell spheres, flowerlike particles, and structured nanocomponents. Alcoholysis of the metal-organic precursors with mixtures of glycerol and various amounts of ethanol followed by calcination yields oxides. The glycerol plays the dual role of hierarchically assembling the metal-organic composites and stabilizing the structures during the subsequent conversions. Furthermore, we demonstrate for the first time that these metal-organic composites can be converted into oxides, nitrides, and highly graphitized carbon nanostructures. We show that these yolk-shell structures display superior photocatalytic activity and electrochemical properties.
这里描述的是一种新的、高度通用的多模板（多模版）图案形成策略。这个过程非常重要，因为它使我们能够创造出各种不同寻常的形状，如实心球体、蛋黄壳球体、花状颗粒和结构化纳米组件。金属有机前体与甘油和不同量乙醇的混合物进行醇解，然后进行煅烧，得到氧化物。甘油在分级组装金属有机复合材料和在随后的转化过程中稳定结构方面发挥了双重作用。此外，我们首次证明这些金属有机复合材料可以转化为氧化物、氮化物和高度石墨化的碳纳米结构。我们表明，这些蛋黄壳结构显示出优异的光催化活性和电化学性能。
