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Next generation hydrogen batteries
Apr. 25th, 2006 09:49 amhttp://www.newscientisttech.com/article/dn9040-bio-fuel-cells-could-power-portable-gadgets.html
Researchers have developed a new hydrogen cell battery that uses enzymes instead of expensive electrodes. Although currently generating less than 700-mV, the cell generates current from hydrogen and without the need for platinum in the electrodes. Moreover, a membrane is not required to seperate the anode and cathode regions as is required in conventional hydrogen cells. It is hoped that the resulting batteries will be smaller, more environmentally friendly, and cheaper than current models.
http://www.newscientisttech.com/article/mg18925401.600
In related news, scientists are using algea to convert sunlight and waste directly into hydrogen. Rather than compete with regular farmland, algae farms can be placed in deserts and similar regions where conventional crops don't grow. It is estimated that for hydrogen to displace gasoline use, 25,000 square kilometres of farms would be required.
Researchers have developed a new hydrogen cell battery that uses enzymes instead of expensive electrodes. Although currently generating less than 700-mV, the cell generates current from hydrogen and without the need for platinum in the electrodes. Moreover, a membrane is not required to seperate the anode and cathode regions as is required in conventional hydrogen cells. It is hoped that the resulting batteries will be smaller, more environmentally friendly, and cheaper than current models.
http://www.newscientisttech.com/article/mg18925401.600
In related news, scientists are using algea to convert sunlight and waste directly into hydrogen. Rather than compete with regular farmland, algae farms can be placed in deserts and similar regions where conventional crops don't grow. It is estimated that for hydrogen to displace gasoline use, 25,000 square kilometres of farms would be required.