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URN etd-0813109-110033 Statistics This thesis had been viewed 2602 times. Download 352 times. Author Jhih-hua Syu Author's Email Address No Public. Department Chemical Engineering Year 2008 Semester 2 Degree Master Type of Document Master's Thesis Language English Page Count 152 Title CuO/Ce0.9Zr0.1O2-TiO2 for Selective Oxidation of Carbon Monoxide in Rich-Hydrogen Stream Keyword Ce0.9Zr0.1O2-TiO2 mixed oxides CuO catalyst Selective oxidation Selective oxidation CuO catalyst Ce0.9Zr0.1O2-TiO2 mixed oxides Abstract Titanium dioxide was incorporated with the solid solutions of Ce0.9Zr0.1O2 to form Ce0.9Zr0.1O2-TiO2 mixed oxides by the suspension/co-precipitation method, which was used as the support in the CuO/Ce0.9Zr0.1O2-TiO2 catalyst. The characterization of support and catalyst were confirmed by the measurements of X-ray, SEM, Raman and BET. High surface area of titanium dioxide incorporated with the solid solutions of Ce0.9Zr0.1O2 has the best activity. Titanium dioxide incorporated with Ce0.9Zr0.1O2 provides a means for oxygen transfer and enhances the reaction activity for the CO conversion in the H2-rich stream. The promotion of CO oxidation becomes weaker as the amount of TiO2 is increased above 20%. A small amount of TiO2 such as 5%CuO/Ce0.9Zr0.1O2-TiO2(10%) can be a good candidate for oxidation (PROX) unit in a polymer electrolyte membrane fuel cell system to remove CO. Advisor Committee Rong-chi Wang - advisor
Jyh-shyong Chang - co-chair
Lii-ping Leu - co-chair
Files Date of Defense 2009-07-30 Date of Submission 2009-08-13