有序介孔材料是上世紀90年代迅速興起的新型納米結(jié)構(gòu)材料,它一誕生就得到國際物理學、化學與材料學界的高度重視,并迅速發(fā)展成為跨學科的研究熱點之一。有序介孔材料雖然目前尚未獲得大規(guī)模的工業(yè)化應(yīng)用,但它所具有的孔道大小均勻、排列有序、孔徑可在2-50nm范圍內(nèi)連續(xù)調(diào)節(jié)等特性,使其在分離提純、生物材料、催化、新型組裝材料等方面有著巨大的應(yīng)用潛力。文章18頁,引文60篇,值得一讀。
文章題目:Carbon nanotube-based heterostructures for solar energy application Controlling macro- and mesostructures with hierarchical porosity through combined hard and soft templatings
文章摘要:Rigid, porous objects and surfactants serve as powerful templates for the formation of mesoporous and macroporous materials. When both types of template are combined in a single synthesis, materials with intricate architectures and hierarchical porosity can be obtained. In this tutorial review, we explain how to conduct syntheses with both soft and hard templates; moreover, we describe methods to control the final structure present in the templated material. Much of the foundation for multiple templating lies in the study of materials made with only one type of template. To establish a foundation in this area, a description of hard and soft templating is given, delving into the templates available and the steps required for effective templating. This leads into an extended discussion about materials templated with both hard and soft templates. Through the use of recent examples in the literature, we aim to show the diversity of structures possible through multiple templating and the advantages these structures can provide for a wide range of applications. An emphasis is placed on how various factors—such as the type of template, type of precursor, heat-treatment temperature, confinement within a small space, and template–template interactions-impact morphology.![Chem. Soc. Rev. 最新綜述:軟、硬模板結(jié)合控制合成介孔-大孔材料]()
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![Chem. Soc. Rev. 最新綜述:軟、硬模板結(jié)合控制合成介孔-大孔材料-1]()
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[ Last edited by smile1022 on 2013-8-11 at 14:39 ] |