✦ LIBER ✦
Aberdeen chemists working on CO-tolerant electrodes for PEMFCs
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 96 KB
- Volume
- 2009
- Category
- Article
- ISSN
- 1464-2859
No coin nor oath required. For personal study only.
✦ Synopsis
Because the device is so small -just 3 mm × 3 mm × 1 mm -the flow of water through the system is controlled by surface tension, rather than gravity. This means that the cell operates even if moved and rotated -perfect for life inside a pocket gadget.
The first designs generated 0.7 V and a current of 0.1 mA for 30 h before the fuel ran out, but Moghaddam says the latest versions give currents of around 1 mA at a similar voltage. This isn't enough yet to drive cell phones, which use batteries typically rated at a few volts, but it is enough for simpler electronic systems or microbots, he says.