Petroleum Processing and Petrochemicals ›› 2019, Vol. 50 ›› Issue (7): 109-118.

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γ-Al2O3 PREPARATION WITH DIFFERENT MORPHOLOGIES AND ITS EFFECT ON Pt STABILITY

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  • Received:2018-06-21 Online:2019-07-12 Published:2019-07-25
  • Contact: Jian ZhiDa E-mail:dazhijian.ripp@sinopec.com
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Abstract: γ-Al2O3 is one of the most widely used heterogeneous catalyst carriers. In recent years,researchers have found that γ-Al2O3 crystallite morphologies have a great influence on the surface properties and the stability of the active metals such as Pt. The preparation and characterization techniques of boehmite with different crystallite morphologies and the effects of exposed facets of γ-Al2O3 crystallite on the surface properties of the support and the stability of Pt atoms are reviewed. The problems existing in the present research results are discussed,and the future research directions are prospected.

Key words: γ-Al2O3, boehmite, crystallite morphology, surface acidity, Platinum

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