【摘要】：隨著石墨烯及其優(yōu)異性質被發(fā)現以來,二維層狀材料成為了材料科學領域研究的熱點.二維層狀材料每個片層內的原子通過化學鍵連接,片層間以弱范德華力相互堆垛.這種幾何結構使得二維層狀材料在晶格不匹配和生長方法不兼容的情況下,彼此之間仍然能夠相互混合和匹配,從而衍生出很多范德華層間異質結構.這種異質結構利用了不同堆垛材料迥異的物理和化學性質,在電子、光電子器件、可再生能源儲存和轉化等領域得到了廣泛的應用.需要指出的是,大面積、大疇區(qū)、可控制備本征層間異質結構是實現其實際應用的首要條件.本文總結了基于過渡金屬硫屬化合物(MX_2)和石墨烯(graphene)層間異質結構的最新研究成果,重點描述了MX_2/graphene和MX_2/MX_2層間異質結構的化學氣相沉積(CVD)可控制備、新奇物理性質探索以及這兩類異質結構在能源領域(電/光催化析氫反應)中的應用,并討論了所存在的問題和未來發(fā)展方向.
[Abstract]:With the discovery of graphene and its excellent properties, two-dimensional layered materials have become a hot topic in the field of material science. The atoms in each layer of two-dimensional layered material are connected by chemical bonds and stacked in a weak van der Waals force. This geometric structure enables two-dimensional layered materials to mix and match each other even when the lattice mismatch and growth methods are incompatible, thus deriving many van der Waals interlayer heterostructures. This kind of heterostructure takes advantage of the different physical and chemical properties of different stacking materials and has been widely used in the fields of electronics optoelectronic devices renewable energy storage and conversion and so on. It should be pointed out that large area, large domain region and controllable preparation of intrinsic interlayer heterostructure are the most important conditions for its practical application. In this paper, the latest research results based on transition metal sulfur compounds (MX2) and graphene (graphene) interlayer heterostructures are summarized, and the chemical vapor deposition (CVD) controllable devices of MX-2 / MX-2 heterostructures are described emphatically. The novel physical properties and the applications of these two kinds of heterostructures in the field of energy (electro-photocatalytic hydrogen evolution) are discussed. The existing problems and the future development are also discussed.
【作者單位】： 北京大學工學院材料科學與工程系;北京大學化學與分子工程學院納米化學研究中心;
【基金】：科技部重點研發(fā)計劃(2016YFA0200103) 國家自然科學基金(51472008,51290272,21201012,51121091,51072004,51201069) 北京市科學技術委員會(Z151100003315013) 清華大學低維量子物理國家重點實驗室開放基金(KF201601)資助
【分類號】：TB303

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