Word: hydrogenized
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Unlike an internal combustion engine, which burns its fuel so inefficiently that only 20 percent of the energy in gasoline gets used, a fuel cell can pull off at least 30 percent efficiency by reacting its special fuels--hydrogen and oxygen gas--electrochemically...
...practice, the equation isn't so spotless. Though oxygen is plentiful in the air, pure hydrogen is much harder to come by and must be obtained artificially...
...process of extracting hydrogen from more conventional fuels such as gasoline and methanol inevitably releases some carbon dioxide--but not as much as the internal combustion engine does, and therein lies...
...pollution levels of fuel cells, while seemingly their raison d'etre, is also their most damning flaw. A fuel cell is a highly efficient reactor, but is notoriously picky about what it consumes--only pure hydrogen and oxygen...
...billion program of tax credits for companies that invest in energy-saving technology, and government spending on energy research. He pointed out that many fuel-saving technologies, such as compact fluorescent light bulbs, already exist, and other breakthroughs, like practical fuel cells that generate clean energy by combining hydrogen and oxygen, are being put to greater use all the time. The government has already begun to jump start the alternative-energy industry by purchasing products like solar cells in bulk...