Ordered Heterostructures of Two Strictly Alternating Types of Nanoreactors

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• 作者：Matthias St枚ter ; Bernhard Biersack ; Nele Reimer ; Markus Herling ; Norbert Stock ; Rainer Schobert ; Josef Breu
• 刊名：Chemistry of Materials
• 出版年：2014
• 出版时间：September 23, 2014
• 年：2014
• 卷：26
• 期：18
• 页码：5412-5419
• 全文大小：440K
• ISSN：1520-5002

文摘

One-dimensional crystalline heterostructures of two types of nanoreactors strictly alternating along the stacking direction are obtained by partial ion exchange into a synthetic clay mineral distinguished by an outstandingly homogeneous charge density. The driving force for the formation of these high interface architectures is proven to be founded in densely packed cationic molecules in the interlayer with a charge density deviating from the charge density of the host clay mineral. The established mechanism renders the approach generally applicable and will allow for synthesis of ordered heterostructures of any desired combination of functional molecules that moreover are separated by exactly 1 nm thick silicate walls. The ordered heterostructures were furthermore shown to represent the thermodynamic equilibrium suggesting the mechanism of formation to be robust.