Water-splitting using photocatalytic porphyrin-nanotube composite devices
| DWPI Title: Hydrogen generation involves illuminating porphyrin nanotube composite with light having wavelength that is absorbed by porphyrin nanotube to generate free electrons, and reducing hydrogen ion(s) at reduction catalyst using free electrons |
| Abstract: A method for generating hydrogen by photocatalytic decomposition of water using porphyrin nanotube composites. In some embodiments, both hydrogen and oxygen are generated by photocatalytic decomposition of water. |
| Use: The method is used for generating hydrogen. |
| Advantage: The method provides an energy-efficient way to generate hydrogen from water. |
| Novelty: Hydrogen generation includes illuminating a porphyrin nanotube composite with light having a wavelength that is absorbed by a porphyrin nanotube of the porphyrin nanotube composite to generate free electrons; and reducing hydrogen ion(s) at a reduction catalyst. The reduction catalyst is affixed to the porphyrin nanotube. The reducing step uses the free electrons generated by illuminating the porphyrin nanotube. |
| Filed: 10/25/2005 |
| Application Number: US2005256808A |
| Tech ID: SD 7763.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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