CHED 164 |
| A number of nanoscience Projects have been incorporated in undergraduate courses as parts of the Learning Through Research initiative. The Instrumental Analysis course has been enhanced with AFM/STM-based nanoscience Projects focused on important nanoscale phenomena and processes having high impact on the development of new technologies. In this talk, specific features of projects introducing electrochromism of semiconductor nanoparticles, biosensors, fuel cell catalysts for methanol oxidation, nanowires, and photoanodes for pollutants remediation, will be discussed. For instance, in the Project on electrochromic transition metal oxide films, the WO3 nanoparticle size and distance are controlled by electrodeposition and etching procedures and monitored using AFM. The switching speed between optical transparency and coloring, determined in pulse voltammetric experiments, depends strongly on the size and distance between WO3 nanoparticles. The small cation ingress/egress and WO3 etching in recently developed solutions are readily confirmed by monitoring frequency shifts using Electrochemical Quartz Crystal Nanobalance (EQCN). The authors gratefully acknowledge the financial support of the NSF (DUE 0126402) for support of this project. |
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NSF Catalyzed Innovations in the Undergraduate Curriculum
1:30 PM-5:05 PM, Monday, August 20, 2007 Seaport -- Flagship Room, Oral
Division of Chemical Education |