I'm looking for some fast oxidizing materials that are cheap to deoxidize. For example: For my experiment I could use aluminum since it oxidizes very fast, but "aluminum oxide" is pretty expensive to turn back to aluminum as far as I know. What other material attracts oxygen and (oxidizes fast) BUT yet are pretty cheap/easy to deoxidize? There must me some material out there that we have found a cheap deoxidizing process for. Thanks for your help guys.