学术动态
Prof. Yury Gogotsi (MXenes的发现者),Drexel University 学术报告
2017-12-12 09:33   审核人:

报告题目: MXenes on the march: beyond graphene and into the real world

报告人:Prof. Yury Gogotsi (MXenes的发现者)Drexel University

主持人:殷小玮教授

报告时间:20171215日(周五)16:00

报告地点:公字楼328

报告内容:

Two-dimensional (2D) materials with a thickness of a few nanometers or less can be used as single sheets due to their unique properties or as building blocks, to assemble a variety of structures. Graphene is the best-known example, but several other elemental 2D materials (silicene, borophene, etc.) have been discovered. Numerous compounds, ranging from clays to BN and transition metal dichalcogenides, have been produced as 2D sheets. By combining various 2D materials, unique combinations of properties, which are not available in any bulk materials, can be achieved. The family of two-dimensional (2D) transition metal carbides and nitrides, MXenes, has been expanding rapidly since the discovery of Ti3C2 in 2011 [1]. About 30 different MXenes have been synthesized, and the structure and properties of numerous other MXenes have been predicted using density functional theory calculations [2]. The availability of solid solutions on M and X sites, control of surface terminations, and a recent discovery of multi-element layered MXenes (e.g., Mo2TiC2) offer a potential for synthesis of dozens of new distinct structures. MXenes’ versatile chemistry renders their properties tunable for a large variety of applications. Oxygen or OH terminated MXenes, such as Ti3C2O2, have redox capable transition metals layers on the surface and offer a combination of high electronic conductivity with hydrophilicity, as well fast ionic transport. This makes them promising candidates for energy storage and related electrochemical applications, but their applications in optoelectronics, electromagnetic interference shielding, plasmonics, sensors, water purification and desalination, electrocatalysis, medicine and other fields are equally exciting [2].

1. M. Naguib, et al., Two-Dimensional Nanocrystals Produced by Exfoliation of Ti3AlC2, Advanced Materials, 23, 4248 (2011)

2. B. Anasori, M. R. Lukatskaya, Y. Gogotsi, 2D metal carbides and nitrides (MXenes) for energy storage, Nature Reviews Materials, 2, 16098 (2017)

Attachment【简历.pdf已下载
Close Window
推荐文章
热点文章
友情链接:

CopyRight (c)   2016-2017   通讯地址:陕西省西安市友谊西路127号西北工业大学材料学院 邮编:710072 版权所有:西北工业大学材料学院 技术支持:赵有国