One of the biggest hindrances to the development of fuel cell technology is its cost. In order to work properly, polymer electrolyte fuel cells require a catalyst. So far, though, the most efficient catalyst for use with these fuel cells is platinum. And, as you probably know, platinum is one of the most expensive materials out there. The high cost of platinum is stunting the further development of fuel cells for use on a broader basis. Help may be coming, however, in the form of niobium and titanium.
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