Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Acid Structure of MgO-SiO₂Binary Oxide Catalyst and Activity for Acid Catalysis

  • Published : 1997.02.20
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Abstract

A series of MgO-SiO2 catalysts were prepared by coprecipitation from the mixed solution of magnesium chloride and sodium silicate. Some of the sample were modified with 1 N H2SO4 and used as modified catalysts. The addition of MgO to SiO2 caused the increase of acidity and the shift of O-H and Si-O stretching bands of the silanol group to a lower frequency in proportion to the MgO content. The acid structure of MgO-SiO2 agreed with that proposed by Tanabe et al.. Catalytic activity for 2-propanol dehydration increased in relation to the increase of acidity and band shift to a lower frequency.

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References

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