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The adsorption of Au on Zr-doped CeO2(110) surface: A first-principle study

Wei Yan-Wei Yang Zong-Xian

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The adsorption of Au on Zr-doped CeO2(110) surface: A first-principle study

Wei Yan-Wei, Yang Zong-Xian
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  • The adsorption of Au on the (110) surfaces of CeO2 and Zr-doped CeO2 were studied using projector-augmented wave (PAW) method based density-functional theory (DFT) within the gradient approximation (GGA) and with the inclusion of on-site Coulomb interaction (DFT+U). It is found that, due to the doping of Zr, the adsorption energies of Au are increased and the strongest adsorption geometry is altered. The doping of Zr results in larger distortion in the structure of the substrate, and enhances the catalytic activity of the Au/CeO2(110) system and the oxidization of Au. These results may lead to a better understanding for the Au/Zr-doped CeO2 catalysts and give some clues for improving the efficiency of the three-way catalysts (TWC).
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  • Abstract views:  6801
  • PDF Downloads:  1055
  • Cited By: 0
Publishing process
  • Received Date:  20 December 2007
  • Accepted Date:  19 May 2008
  • Published Online:  20 November 2008

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