CHED 312 |
| Recent work in our lab has focused on exploring various methods for grafting organic molecules onto porous silicon via thermal, Lewis acid, carbocation, and microwave mediated pathways. While many studies have explored the stability of functionalized porous silicon in aqueous solutions, none have attempted analogous experiments in organic solvent environments. This study presents preliminary data to show that many common organic solvents are benign with respect to porous silicon degradation, yet tetrahydrofuran and dimethyl sulfoxide were two solvents that caused significant oxidation. Porous silicon functionalized with a C6 monolayer demonstrated enhanced resistance to oxidation in the case of tetrahydrofuran in comparison to unfunctionalized controls. However, the C6 functionalized porous silicon provided no protection against oxidation when exposed to dimethyl sulfoxide. Oxidation was monitored using FTIR. |
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Undergraduate Research Poster Session: Nanotechnology
11:00 AM-1:00 PM, Monday, April 7, 2008 Morial Convention Center -- Hall A, Poster
Division of Chemical Education |