| http://www.w3.org/ns/prov#value | - ity for use whenever needed.Catalysts are typically made from rare and expensive metals in a crystalline structure.However, Berlinguette and Trudel deviated from this principle by using common metal compounds or oxides, such as rust, which achieved the same results as more expensive metals.The researchers expect to have a commercial product in the market by 2014, with a prototype electrolyzer desi
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