Preparation, characterization and photoelectrochemical property of ultrathin MoS2 nanosheets via hydrothermal intercalation and exfoliation route
Preparation, characterization and photoelectrochemical property of ultrathin MoS2 nanosheets via hydrothermal intercalation and exfoliation route
复制标题
水热插层剥离法超薄MoS2纳米片的制备、表征及光电化学性能
DOI：
10.1016/j.jallcom.2013.03.031
复制
发表时间：
2013-09-15
影响因子：
6.2
通讯作者：
Zhong, J. X.
中科院分区：
文献类型：
--
作者：
Liu, Y. D.;Ren, L.;Zhong, J. X.
发展了一种简单有效的水热插层-剥离法，以高产率制备了纳米MoS 2片。采用X射线粉末衍射、透射电子显微镜、扫描电子显微镜和原子力显微镜对产物的形貌和微观结构进行了表征。结果表明，在水热过程中，以乙二醇为还原剂和溶剂，零价锂很容易插层在MoS 2层间。随后，通过在水中剥离过程去除锂，获得具有良好质量的层状MoS 2纳米片。在模拟太阳光的照射下，所制备的片状MoS 2纳米片具有比块状MoS 2更好的光电化学和光响应活性。我们的研究结果表明，MoS_2纳米片在光电化学、多相催化、传感器和光电纳米器件等方面具有广阔的应用前景。(C)2013爱思唯尔有限公司版权所有。
A simple but effective hydrothermal intercalation and exfoliation route is developed to prepare ultrathin MoS2 nanosheets in high yield. The morphologies and microstructures of as prepared products are characterized by X-ray powder diffraction, transmission electron microscopy, scanning electron microscopy and atomic force microscopy. It is found that zerovalent lithium is readily intercalated between the layers of MoS2 using ethylene glycol as both reductant and solvent in hydrothermal process. Subsequently ultrathin MoS2 nanosheets with good quality are obtained by the removing of lithium via the exfoliating process in water. The obtained ultrathin MoS2 nanosheets exhibit preferable photoelectrochemical and photoresponse activity under the illumination of simulated sunlight compared to bulk MoS2. Our results indicate that ultrathin MoS2 nanosheets have promising applications in photo-electrochemistry, heterogeneous catalysis, sensors and optoelectronic nanodevices. (C) 2013 Elsevier B.V. All rights reserved.