Studies on 12-Tungstophosphoric Heteropolyacid Supported SBA-15 Catalysts

Abstract

Abstract: Aseries of SBA-15 supported H₃PW₁₂O₄₀ (PW) catalysts were prepared and characterized. PWcrystal phase was not observed in XRDpatterns at PWloading as high as 60%. PWdispersed on the supports retains its Keggin structure, but a strong chemical interaction between PWand SBA-15 supports is present. The activity of the catalysts can be adjusted by varying PWloading. PW/SBA-15 catalysts are promising mesoporous solid acid catalysts for medium strong and weak acid catalyzed reactions.

Key words: SBA-15 molecular sieve, 12 Tungstophosphoric acid, Acidity, Catalytic activity

CLC Number:

O643.1

TrendMD:

ZHANG Xue-Zheng, YUE Ying-Hong, GAO Zi . Studies on 12-Tungstophosphoric Heteropolyacid Supported SBA-15 Catalysts[J]. Chem. J. Chinese Universities, 2001, 22(7): 1169.

References

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