Abstract
A new strategy for making low cost, catalytic electrodes is being developed for fuel-cells and electrochemical sensors. The strategy is to synthesize a macrocyclic catalyst derivatized with a functional group (like phosphate or carboxylate), which has affinity for a metal-oxide/metal surface. The purpose of the functional group is to anchor the modified catalyst to the metal surface, thereby promoting the formation of a self-assembled monolayer (SAM) of catalyst on a metal support. Syntheses are given for new ferrocene compounds and métallo porphyrins with anchor groups. The ferrocenes, which are relatively easy to synthesize, were made to learn how to form a stable SAM on a metal-oxide/metal surface. The metallo porphyrins were made for catalyzing oxygen electro-reduction with no platinum. Strategies for attaining an ideal catalytic electrode are discussed.
Original language | English (US) |
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Article number | 41 |
Pages (from-to) | 220-240 |
Number of pages | 21 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 5592 |
DOIs | |
State | Published - 2005 |
Event | Nanofabrication: Technologies, Devices, and Applications - Philadelphia, PA, United States Duration: Oct 25 2004 → Oct 28 2004 |
Keywords
- Bio mimetic
- Biofuel-cell
- Electrode catalyst
- Fuel-cell
- Oxygen reduction
- Self-assembled monolayer
- Sensor
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering