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Lecture Stanislaus S. Wong

Rooster

WanneerWaar
14 juni 2011 FWN-Building 5118.-153, Nijenborgh 4, 9747 AG, Groningen
Speaker: Prof. Dr. Stanislaus S. Wong
Affiliation: Department of Chemistry, State University of New York at Stony Brook / Condensed Matter Physics and Materials Sciences Department, Brookhaven National Laboratory, USA
Title: Chemical strategies in nanoscience
Date: Tue Jun 14, 2011
Start: 15.00
Location: FWN-Building 5118.-152
Host: M.A. Loi
Telephone: +31 50 363 4119

Abstract

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 application of green chemistry principles to the synthesis of complex metal oxide as well as metal fluoride, phosphate, titanate, and sulfide nanostructures. In particular, we describe advances in the use of the hydrothermal protocols and 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. 

Laatst gewijzigd:22 oktober 2012 14:31