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http://dx.doi.org/10.9713/kcer.2016.54.4.560

Study on Effects of Ni/Al2O3 Catalysts Added with Mo on Durability Improvement in Steam Reforming Reactions  

Won, Jong Min (Department of Environmental Energy Engineering, Kyonggi University)
Park, Gi Woo (Department of Environmental Energy Engineering, Kyonggi University)
Lee, Jin Woo (LIG Nex one)
Hong, Sung Chang (Department of Environmental Energy Engineering, Kyonggi University)
Publication Information
Korean Chemical Engineering Research / v.54, no.4, 2016 , pp. 560-567 More about this Journal
Abstract
In this study, we characterized steam reforming reactions and surface of $Ni/Al_2O_3$ catalysts. Ni-Mo based catalysts were prepared by loading Mo as the co-catalyst and reaction activities of the Ni-Mo based catalysts were compared with those of Ni-based catalysts. Through the $H_2$-TPR and XPS analysis it was confirmed that this characteristic efficiency. $O_2$-TPO analysis was performed to examine the deposition characteristics, bonding structures and evaporation characteristics of carbon deposited on the surface of catalysts after long run experiments were performed for steam reforming reactions. As the results, it was found that durability was improved in Ni-Mo based catalysts inhibiting formation of graphitic carbon species which reduced reaction activities of the catalysts by strongly interacting with Ni in the steam reforming reaction.
Keywords
Steam reforming; Mo; NiO species; Spinel; Graphitic carbon;
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