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Influence of boron on the state and dispersion of CO/Al/sub 2/O/sub 3/ catalysts

Conference · · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)
OSTI ID:5334685
Cobalt dispersion increases as a result of boron support modification. Boron increase Co dispersion to the greatest extent at high Co loadings where Co dispersion on the unmodified support is quite poor. Thus, the effect of boron on Co dispersion depends on both Co loading and boron loading. The increase in Co dispersion results from an increase in Co/support interaction which prevents Co agglomeration. The chemical state of Co also changes when supported on a boron modified carrier, as Co/sub 3/O/sub 4/ formation is suppressed in favor of octahedral Co/sup 2 +/. The formation of Co/sub 3/O/sub 4/ resumes at Co loadings greater than 6 wt%.
Research Organization:
Dept. of Chemistry, Univ. of Pittsburgh, Pittsburgh, PA
OSTI ID:
5334685
Report Number(s):
CONF-860425-
Conference Information:
Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Journal Volume: 31:1
Country of Publication:
United States
Language:
English