Topic: Soft Carbon Sheets: Some Curiosities Driven Discoveries
Speaker: Jiaxing Huang
                  Department of Materials Science and Engineering，Northwestern University, Evanston, IL 60208 USA
                  Email: Jiaxing-huang@northwestern.edu
Time: 2014年7月13日(星期日)下午3:00
Room: Lecture Hall, Supramolecular Building
Inviter: Assoc. Prof. Yingwei Yang  
Abstract:
Graphite oxide sheets, now called graphene oxide (GO), are made by exfoliation of graphite using century-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 a two-dimensional (2D) soft material such as polymer, highly anisotropic colloid that can form liquid crystals, membrane, or 2D surfactant. In this talk, some curiosity driven discoveries will be shared such as the use of GO as surfactant to process insoluble materials in water. GO sheets are also 2D building blocks to construct massive arrays of 2D nanofluidic channels with high ionic conductivity. Next, a few problems associated with the manufacturing and processing of GO and its graphene product will be discussed, such as 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.

Bio Information:
Jiaxing Huang is an Associate Professor of Materials Science and Engineering at Northwestern University. His main research interest is in the general area of material chemistry, processing and manufacturing. Some of the examples include 2D soft materials, organic nanocrystals and metal nanostructures. He is also interested the application of these materials in energy and sustainability, as well as using them as a platform for materials education. He is a recipient of the IUPAC Young Chemists Prize, the NSF CAREER Award, the Sloan Fellowship, the Outstanding Young Manufacturing Engineer Award from the Society of Manufacturing Engineers, and the Guggenheim Fellowship. Recently, he has been named by Thompson Reuters as a “Highly Cited Researcher” in Chemistry.

Selected publications on carbon materials
See http://scholar.google.com/citations?user=sbfLJqUAAAAJ for complete list of publications and citations
1. “Pencil Drawn Strain Gauges and Chemiresistors on Paper” Sci. Rep., 2014, 4, 3812
2. “Material Processing of Chemically Modified Graphene: Some Challenges and Solutions”
    Acc. Chem. Res., 2013, 46, 2225
3. “Two Dimensional Soft Material: New Faces of Graphene Oxide” Acc. Chem. Res., 2012, 45, 1356
4. “Nanofluidic Ion Transport through Reconstructed Layered Materials” J. Am. Chem. Soc., 2012, 134, 16528
5. “Compression and Aggregation-resistant Particles of Crumpled Soft Sheets” ACS Nano, 2011, 5, 8943
6. “Self-Propagating Domino-Like Reactions in Oxidized Graphite” Adv. Funct. Mater., 2010, 20, 2867
7. “Graphene Oxide Sheets at Interfaces” J. Am. Chem. Soc., 2010, 132, 8180
8. “Visualizing Graphene Based Sheets by Fluorescence Quenching Microscopy” J. Am. Chem. Soc., 2010, 132, 260
9. “Flash Reduction and Patterning of Graphite Oxide and Its Polymer Composite”
    J. Am. Chem. Soc., 2009, 131, 11027
10. “Langmuir-Blodgett Assembly of Graphite Oxide Single Layers” J. Am. Chem. Soc., 2009, 131, 1043

WELCOME!

CV