Copper-Based Mixed Oxides Catalyst of Water-Gas Shift Reaction for Fuel Cells: The Role of Alkali Charge

Abstract:

The effects of alkali charge on the activity and stability of copper-based mixed oxides catalyst for the water-gas shift reaction (WGSR) were investigated. Activity tests showed that the copper-based mixed oxides catalyst while the 2[NaOH]/[Cu²⁺+Mn²⁺] is above 1.2 displayed higher activity and better stability than that of others catalysts. The BET , XRD and TPR results revealed that the Cu-Mn catalyst while the 2[NaOH]/[Cu²⁺+Mn²⁺] is above 1.2 led to higher surface area, a more stable catalyst structure and suitable reduction performance, in turn leading to better catalytic behavior for the Cu-Mn catalyst.

• Periodical: Applied Mechanics and Materials (Volumes 268-270)
• Pages: 538-541
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.268-270.538
• Online since: December 2012
• Authors: Ke Duan Zhi, Quan Sheng Liu, Run Xia He, Fang Wu, Ya Gang Zhang, Li Yang
• Keywords: Activity, Alkali Charge, Copper-Based, Thermal Stability, Water Gas Shift Reaction

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