Effect of Mo and Ce Additives on Redox Behavior for Hydrogen Storage and Release of Iron Oxide Mediums

Abstract:

The hydrogen reduction and water-splitting oxidation for hydrogen storage and release on the iron oxide mediums with Ce, Mo or Ce-Mo additives were carried out using a fixed bed reactor at atmospheric pressure. A sole Ce additive was an outstanding material for the improvement of the reactivity in the reduction and oxidation of iron oxide medium, even though the medium with Ce was easily deactivated during repeated cyclic reactions due to sintering. A sole Mo additive was a good material for the improvement for the durability. In the mediums with the Ce-Mo additives, therefore, the degree of deactivation and the reactivity of the mediums were gradually decreased with the increase of the amount of Mo. Among the iron oxide mediums with Ce-Mo additives, a FeCeMo-5 medium exhibited the good durability while the maintaining the considerable reactivity during the cyclic reactions.

• Periodical: Advanced Materials Research (Volumes 554-556)
• Pages: 616-619
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.554-556.616
• Online since: July 2012
• Authors: Young Ho Kim, Eun Jee Kang, Su Gyung Lee, Hyo Sub Kim, Chu Sik Park
• Keywords: Ce and Mo Additives, Chemical Hydrogen Storage, Iron Oxide Medium Redox Reaction

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