Abstract
Catalytic combustion of benzene over CuO-CeO2 mixed oxides has been investigated. The CuO-CeO2 mixed oxides were prepared using various methods and characterized by XRD, BET and TPR. For the CuO-CeO2 catalysts with a Cu/(Cu + Ce) molar ratio of more than 0.5, highly dispersed copper oxide species were shown at 2θ = 35.5 degrees and 38.8 degrees. The CuO-CeO2 catalyst prepared using co-precipitation method showed the highest activity. In addition, the highest activity is shown on Cu0.35 (the index denotes the molar ratio Cu/(Cu + Ce)) sample and then it decreases on Cu0.5 and Cu0.6 samples.
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