CHI-YUAN LU2026-10-162026-10-162013-01-11Pure ID: 15196001Pure UUID: 5a9ef011-1539-4a12-a72d-cf0073b135e810.1016/j.ijhydene.2012.10.039https://www.scopus.com/pages/publications/84871948957https://scholars.csmu.edu.tw/handle/123456789/27349The purposes of this study were to prepare a copper catalyst by the microwave-heated polyol (MP) process and subsequently to evaluate the feasibility of the preferential oxidation of CO (CO-PROX) in excess H 2. A CeO2-TD support was firstly prepared by the thermal decomposition from Ce(NO3)3·6H2O precursor. For comparison, commercial ceria (CeO2-C) and activated carbon (AC) selected as support materials. Experimental results of CO-PROX indicated that the highest catalytic activity is achieved when the Cu/CeO 2-TD used as catalysts. Correlating to the characteristic results, it is found that the CeO2-TD support prepared by the thermal decomposition has a large surface area and high mesoporosity; these properties contribute to the easy adsorption of pollutants and the effective dispersion of metal particles. Further investigation of feed composition found that Cu/CeO2-TD catalysts possess 100% CO conversion even existence of CO2 and H2O in H2-rich streams at 150°C. Besides, a decrease in CO conversion was clearly observed above 175°C for Cu/CeO2-TD catalysts due to the reverse water gas shift reaction tending to reform CO from CO2 and H2.9enjournal article