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|Title:||Metal-organic-frameworks-derived general formation of hollow structures with high complexity|
|Citation:||Journal of the American Chemical Society, 2013; 135(29):10664-10672|
|Publisher:||American Chemical Society|
|Lei Zhang, Hao Bin Wu and Xiong Wen (David) Lou|
|Abstract:||Increasing the complexity of hollow structures, in terms of chemical composition and shell architecture, is highly desirable for both fundamental studies and realization of various functionalities. Starting with metal-organic frameworks (MOFs), we demonstrate a general approach toward the large-scale and facile synthesis of complex hollow microboxes via manipulation of the template-engaged reactions between the Prussian blue (PB) template and different alkaline substances. The reaction between PB microcubes with NaOH solution leads to the formation of Fe(OH)₃ microboxes with controllable multishelled structure. In addition, PB microcubes will react with the conjugate bases of metal oxide based weak acids, generating multicompositional microboxes (Fe₂O₃/SnO₂, Fe₂O₃/SiO₂, Fe₂O₃/GeO₂, Fe₂O₃/Al₂O₃, and Fe₂O₃/B₂O₃), which consist of uniformly dispersed oxides/hydroxides of iron and another designed element. Such complex hollow structures and atomically integrated multiple compositions might bring the usual physiochemical properties. As an example, we demonstrate that these complex hollow microboxes, especially the Fe₂O₃/SnO₂ composite microboxes, exhibit remarkable electrochemical performance as anode materials for lithium ion batteries.|
|Rights:||© 2013 American Chemical Society|
|Appears in Collections:||Chemical Engineering publications|
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