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Air pollution has been a known problem for a very long time There have numerous measures to try to lower the levels of pollutants that factories chemical plants incinerators and power generating facilities create These facilities are now regulated strictly by governments around the world There is still an even greater threat to our atmosphere the pollutants that come out the exhausts of internal combustion engines ICE of automobiles Cars are our a permanent part of our society they cannot be eliminated or even substituted An alternative to the ICE has to be universally accepted and must be used by all of our society One Type of Alternative is the hydrogen fuel cell The hydrogen fuel cell works similar to that of a battery yet it doesnt need replacing or charging Hydrogen Fuel Cells combine elemental H2 gas with oxygen from air to create an electric current and pure H2O As with the nitrogen this is a very efficient reaction The fuel cells many of which are put next to each other to make a stack each have two semi-porous electrodes separated by a liquid electrolyte The interior side of the electrodes are coated in a platinum catalyst When the two elements come in contact with the catalyst and the electrolyte as they seep through the semi-porous electrode they each ionize The H ion is is then attracted to the 2-minus charged oxygen ion They combine to form pure water and this is drained from the fuel cell The electricity created runs through the circuit connected to the electrodes One of the biggest developers of the fuel cells is the US Department of Energy Through the DOE fuel cells were used on space missions astronauts could even drink the water produced and with their funding fuel cells are being tested and implemented as stationary power stations Ballard Power Systems is one of the largest companies in the field of fuel cells They develop
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