ScienceDaily: Energy Technology News |
- Barrier to faster graphene devices identified and suppressed
- Hydrogen power in real life: Clean and energy efficient
- Artificially structured metamaterials may boost wireless power transfer
| Barrier to faster graphene devices identified and suppressed Posted: 13 Mar 2012 03:52 PM PDT Physicists report that they have nailed down the source of the interference inhibiting the rapid flow of electrons through graphene-based devices and found a way to suppress it.  |
| Hydrogen power in real life: Clean and energy efficient Posted: 13 Mar 2012 09:15 AM PDT Since 2009, a hydrogen powered street cleaning vehicle has been undergoing testing on the streets of Basel. The project is intended to take hydrogen drives out of the laboratory and onto the streets in order to gain experience on using them under practical conditions. The result of the pilot trial: hydrogen as a fuel for municipal utility vehicles saves energy, is environmentally friendly and is technically feasible. In order to make it cost-effective, however, the prices of fuel cells, pressurized storage tanks and electric drives must all drop significantly.  |
| Artificially structured metamaterials may boost wireless power transfer Posted: 12 Mar 2012 04:27 PM PDT More than one hundred years after the pioneering inventor Nikola Tesla first became fascinated with wireless energy transfer, the spread of mobile electronic devices has sparked renewed interest in the ability to power up without plugging in. Now researchers have proposed a way to enhance the efficiency of wireless power transfer systems by incorporating a lens made from a new class of artificial materials.  |
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