江得恩研究员10月21日上午学术报告

发布时间:2010-10-19访问量:28设置

江得恩研究员1021日上午学术报告

 

演讲人:江得恩

        Chemical Sciences Division,

Oak Ridge National Laboratory, Tennessee, USA

 

题目:  Chemical and Physical Properties of Graphene from First Principles

 

时间:  20101021日(星期四)上午10:00

地点:  910-208 学术报告室

摘要:sp2 carbon is unique in that it forms a stable two-dimensional honeycomb lattice in a three-dimensional world. Although this fact has been known for many decades, fruitful exploration of this uniqueness has become mainstream only recently. In this talk, I will discuss our work in this area in the past four years by using first principles density functional theory. I will address chemical functionalization of graphene, the p electronic structure of nanographenes and graphene nanoribbons, the metal-graphene interface, and porous graphene for gas separation. Seemingly simple, the interplay of p electrons in a two-dimensional lattice turns out to be complicated, especially when zigzag edges are present. The p electrons can also chemically interact with a metal surface, leading to a buckled up graphene sheet. If one creates a hole in the graphene lattice, this hole can be very selective for certain molecules to pass through. You will hear all these interesting properties of graphene in this talk.

 

 江得恩简历:

 


DE-EN  JIANG, Ph.D.

Member of R&D staff
Nanomaterials Chemistry Group

Chemical Sciences DivisionOak Ridge National Laboratory

Mailing address: P.O. Box 2008, MS 6201, Oak Ridge, Tennessee 37831-6201, USA

Phone: +1 (865) 574-5199 (work); Fax: +1 (865) 576-5235

E-mail: jiangd@ornl.gov

 


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