题目：Graphene Oxide: Curiosities, Challenges and Solutions
报告人:
Jiaxing Huang (Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208 USA, Email:
Jiaxing-huang@northwestern.edu)地点: 博彩平台
907-1445
时间: 2013年6月28日下午2:30-3:30
Abstract：
Graphite oxide sheets, now called graphene oxide (GO), are made by exfoliation of graphite usingcentury-old chemical reactions. Interest in this old material has resurged with the rapid development of graphene since 2004, as GO is considered to be a promising precursor for bulk production of graphene. Apart from making graphene, GO itself also has many intriguing properties. For example, GO can be viewed as soft material such as two-dimensional (2D) polymers, highly anisotropic colloids that can form liquid crystals, membranes, or 2D surfactants.
In this talk, I will share some curiosity driven discoveries such as the use of GO as surfactant, which has led to all-carbon composites for solar cells.GO sheets can also re-stack to construct nanofluidic ion channels. Next, I will highlight a few problems associated with the manufacturing and processing of GO and its graphene product, including the potential fire risk of GO, the difficulties of imaging these single atomic layers and their ease of aggregation during processing. Strategies and solutions to address these problems will be introduced. Some applications in photovoltaics and energy storage will be discussed.
Bio Information:
Jiaxing Huang is an Associate Professor of Materials Science and Engineering and the Morris E. Fine Junior Professor in Materials and Manufacturing at Northwestern University. He received a B.S. in Chemical Physics from University of Science and Technology of China in 2000, a Ph.D. in chemistry from the University of California, Los Angeles (UCLA) in 2004, and became a Miller Research Fellow at the University of California, Berkeley before joining Northwestern in 2007. His main research interest is in the general area of material chemistry and processing. Some of the examples include 2D soft materials, organic nanocrystals and metal nanostructures. He is also interested the application of these materials in energy conversion and storage, as well as using them as a platform for materials education. He is a recipient of the Alfred P. Sloan Research Fellowship, the NSF CAREER Award and the SME Outstanding Young Manufacturing Engineer Award.
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