The Dispersion Characteristics of Molybdenum and Tungsten on Alumina Surface

Abstract

Abstract: After the ammonia extraction, polymeric Mo (W) species (easily forming active Mo S2(WS2) after sulfiding) and bulk MoO3(WO3) were removed, wh ile the residual metal species still have a strong interaction with alumina surf a ce. However, by further calcination, a new equilibrium, depending on th e surface characteristics of alumina, can be reached by their redispersion on al umina surface.

Key words: molybdenum, tungsten, alumina, dispersion

LI Huifeng;LI Mingfeng*;CHU Yang;XIA Guofu;NIE Hong. The Dispersion Characteristics of Molybdenum and Tungsten on Alumina Surface[J]. Chinese Journal of Catalysis, 2009, 30(2): 165-170.

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The Dispersion Characteristics of Molybdenum and Tungsten on Alumina Surface

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