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Science最新综述：层状材料的液相剥离法
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最新一期的Science杂志刊发了Jonathan N. Coleman课题组撰写的关于层状材料的液相剥离法的综述，很详细的介绍了该方法的原理以及研究进展。文章20页，引文140篇。 Not all crystals form atomic bonds in three dimensions. Layered crystals, for instance, are those that form strong chemical bonds in-plane but display weak out-of-plane bonding. This allows them to be exfoliated into so-called nanosheets, which can be micrometers wide but less than a nanometer thick. Such exfoliation leads to materials with extraordinary values of crystal surface area, in excess of 1000 square meters per gram. This can result in dramatically enhanced surface activity, leading to important applications, such as electrodes in supercapacitors or batteries. Another result of exfoliation is quantum confinement of electrons in two dimensions, transforming the electron band structure to yield new types of electronic and magnetic materials. Exfoliated materials also have a range of applications in composites as molecularly thin barriers or as reinforcing or conductive fillers. Here, we review exfoliation—especially in the liquid phase—as a transformative process in material science, yielding new and exotic materials, which are radically different from their bulk, layered counterparts. /  F1.medium.gif  F2.medium.gif [ 来自小组 材料家族 ] |
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2013-07-04 10:43:30, 4.34 M
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