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http://dx.doi.org/10.7316/khnes.2011.22.5.616

Hydrogen Storage and Release by Redox Reaction of Fe/Zr/Mo Mixed Oxide Mediums  

Je, Han-Sol (Department of Fine Chemical Engineering and Applied Chemistry, Chungnam National University)
Kang, Eun-Jee (Department of Fine Chemical Engineering and Applied Chemistry, Chungnam National University)
Lee, Su-Gyung (Department of Fine Chemical Engineering and Applied Chemistry, Chungnam National University)
Park, Chu-Sik (Hydrogen Energy Research Group, Korea Institute of Energy Research)
Kim, Young-Ho (Department of Fine Chemical Engineering and Applied Chemistry, Chungnam National University)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.22, no.5, 2011 , pp. 616-624 More about this Journal
Abstract
Hydrogen storage and release of Fe/Zr/Mo mixed oxide mediums were investigated by hydrogen reduction and water splitting oxidation($Fe_3O_4+4H_2{\rightleftharpoons}3Fe+4H_2O$). As the results of TPR/O, Mo was an additive to enhance the reactivity of water splitting oxidation as well as the stability of the medium. On the other hand, it seemed that $ZrO_2$ additive provided the passway for the diffusion of gaseous chemicals on the medium in repeated redox cycles. Among the Fe/Zr/Mo mediums, a FeZrMo-7 medium (Fe/Zr/Mo=80/13/7mol%) exhibited the best performance with good durability during five repeated redox cycles. The amount of hydrogen evolved on the medium was maintained at ca. 10.7mmol-$H_2$/g-medium corresponding to the hydrogen storage amount of ca. 2.2wt%.
Keywords
Hydrogen storage and release; Magnetite; Redox reaction; Mo and Zr additives;
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Times Cited By KSCI : 3  (Citation Analysis)
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