The effect of La on Au-ceria catalyst for water gas shift reaction |
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Authors: | Qing Zhang Yingying Zhan Xingyi Lin Qi Zheng |
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Affiliation: | (1) National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fujian, Fuzhou, 350002, P.R. China |
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Abstract: | For Au-ceria catalysts prepared by deposition-precipitation method, catalytic performance of water gas shift reaction was studied in different La loadings. In the complete doping range, ceria retains with its cubic fluorite structures. BET, XRD, H2-TPR, HRTEM studies showed that La doping can improve the activity of Au-ceria catalyst by stabilizing ceria and modifying its morphology. In addition, the test of catalyst stability evaluation also proved a better stability performance of Au-ceria catalyst can be realized by appropriate La doping. |
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Keywords: | Au-ceria catalyst water-gas shift La doping |
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