Birck Nanotechnology Center

Stanislaus S. Wong Seminar

September 9 @ 11:00 AM - 12:00 PM - Birck 1001

Stanislaus S. Wong

Professor of Chemistry, SUNY Stony Brook

Chemical Strategies in Energy-Related Nanoscience

Bio: Stanislaus S. Wong earned his Ph.D. from Harvard University in 1999 under the tutelage of Professor Charles M. Lieber. After completing a
postdoctoral fellowship at Columbia University with Professor Louis E. Brus, he is currently a full Professor of Chemistry at SUNY Stony Brook with a joint appointment at Brookhaven National Laboratory. Professor Wong is a member of the Editorial Advisory Boards of Chemistry of Materials and of ACS Applied Materials and Interfaces, and is the section editor of the ‘Materials: synthesis and self-assembly’ section of Nanotechnology. Professor Wong was recently elected as an American Association for the Advancement of Science (AAAS) Fellow for work on the covalent surface chemistry of carbon nanotubes as well as on the synthesis, characterization, and applications of non-carbonaceous nanostructures. He and his group are especially interested in developing nanomaterials for energy applications.

Abstract: In the first part of the talk, we discuss 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 nanoscale working devices such as solar cells.

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 with respect to the synthesis of metal-containing nanostructures. In particular, we describe advances in the use of template-directed techniques as sustainable and cost-effective methodologies that allow us to generate functional nanomaterials without the need to sacrifice on sample quality, purity, and 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 performance.

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