Friday, September 30, 2011
9:00 am- 10:00 am
Smith Seminar Room, 1080 Physics Research Building
Stanislaus S. Wong
Professor, Department of Chemistry, State University of New York (SUNY) at Stony Brook
and Condensed Matter Physics and Materials Sciences Department, Brookhaven National Laboratory
http://www.chem.stonybrook.edu/faculty/wong.shtml
Chemical Strategies in Nanoscience
In the first part of the talk, we update selected chemical strategies used for the focused functionalization of single walled carbon nanotube (SWNT) surfaces. In recent years, SWNTs have been treated as legitimate nanoscale chemical reagents. Hence, herein we seek to understand, from a structural and mechanistic perspective, the breadth and types of controlled covalent reactions SWNTs can undergo in solution phase, not only at ends and defect sites but also along sidewalls. Controllable chemical functionalization suggests that the unique optical, electronic and mechanical properties of SWNTs can be much more readily tuned than ever before, with key implications for the generation of truly functional nanoscale working devices.
In the second part of the talk, environmentally friendly synthetic methodologies have gradually been implemented as viable techniques in the synthesis of a range of nanostructures. In this work, we focus on the applications of green chemistry principles to the synthesis of metal-containing nanostructures. In particular, we describe advances in the use of template-directed techniques as environmentally sound, socially responsible, and cost-effective methodologies that allow us to generate nanomaterials without the need to sacrifice on sample quality, purity, crystallinity, in addition to control over size and shape. We have subsequently created a number of different potential architecture systems for gaining valuable insights into fuel cell and photovoltaic performance.
Individual Meetings with Dr. Wong are available between 10 am and 1pm. Please contact Angie Dockery at 247-4670 or dockery.9@osu.edu for reservations