RESEARCH PAPER
Au/Fe2O3 Water-Gas Shift Catalyst Prepared by Modified Deposition-Precipitation Method

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Abstract

The Au/Fe2O3 catalyst was prepared by co-precipitation, deposition-precipitation, and modified deposition-precipitation methods and was characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and transmission electron microscopy. The catalyst activity for the water-gas shift (WGS) reaction was discussed. Under strictly controlled conditions, the Au/Fe2O3 catalyst prepared by modified deposition-precipitation displayed higher activity for the WGS reaction than that prepared by co-precipitation and deposition-precipitation. In the former case, the CO conversion of 82.3% was obtained with a feed gas of 10% CO/N2 at 150 °C. Wherein, gold particles of 3–5 nm were highly dispersed on the surface of the Fe2O3 support that existed in an amorphous and crystalline state. A relatively strong interaction between gold particles and the support occurred, which was beneficial for the WGS reaction.

References (16)

  • D Andreeva et al.

    Appl Catal A

    (1996)
  • M Haruta et al.

    J Catal

    (1989)
  • T Tabakova et al.

    Appl Catal A

    (2000)
  • D Andreeva et al.

    Appl Catal A

    (1998)
  • C-T Wang et al.

    J Non-Cryst Solids

    (2006)
  • BM Weckhuysen et al.

    J Catal

    (1998)
  • TC Lin et al.

    Appl Surf Sci

    (1997)
  • DH Wang et al.

    Prog Natur Sci

    (2002)
There are more references available in the full text version of this article.

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Foundation item: Supported by the National Natural Science Foundation of China (20771025) and the Science and Technology Program Foundation of Fujian Province (2002H026).

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