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To prepare potassium titanate catalyst, a novel citrate acid complex-combustion method using CH3COOK and Ti(OC4H9 ) 4 as raw materials was developed. The crystalline phase and surface morphology of K2Ti2O5 were investigated by X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM) and transmission electron microscope (TEM). The impact of some factors, such as the type of contact between K2Ti2O5 and soot, the content of water vapor and SO2 in exhaust, and the repeated use on catalytic activity of K2Ti2O5 were studied by temperature programmed reaction (TPR). A comparison between the new method and the reported ones on catalytic activity of potassium titanate was investigated. The results showed that K2Ti2O5 had high catalytic activity and good stability.
To prepare potassium titanate catalyst, a novel citrate acid complex-combustion method using CH3COOK and Ti (OC4H9) 4 as raw materials was developed. The crystalline phase and surface morphology of K2Ti2O5 were investigated by X-ray diffraction (XRD) The impact of some factors, such as the type of contact between K2Ti2O5 and soot, the content of water vapor and SO2 in exhaust, and the repeated use on catalytic activity of K2Ti2O5 were studied by temperature programmed reaction (TPR). A comparison between the new method and the reported ones on catalytic activity of potassium titanate was investigated. The results showed that K2Ti2O5 had high catalytic activity and good stability.