Characterization of ZrO2 - Al2O3 mixed oxides support prepared by urea hydrolysis
IR@IIP: CSIR-Indian Institute of Petroleum, Dehradun
View Archive Info| Field | Value | |
| Creator |
Aberuagba,F
Manoj, Kumar Gupta,J.K Murali Dhar,G Sharma,Lakshmi Datt |
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| Date |
2009-07-03T04:02:45Z
2009-07-03T04:02:45Z 2009-07-03T04:02:45Z |
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| Identifier |
React.Kinet.Catal.Lett.Vol. 80, No. 2, 311-317 (2003)
http://hdl.handle.net/123456789/289 |
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| Description |
The characteristics of Al2O3 , ZrO2 and three binary mixtures of ZrO2 -Al2O3 were
studied by determining their BET surface areas, micropore surface area, total
pore volume, adsorption-desorption isotherms, the X-ray diffractogram, surface
acidity and catalytic functionality for cumene cracking. The XRD results show
that the incorporation of alumina into the zirconia from 50% and beyond renders
it amorphous. Furthermore, the mixed oxide containing 50% alumina and 50%
zirconia had the highest BET surface area of 199.9 m2/g whilst pure zirconia had
the lowest BET surface area of 37.19 m2/g. The pores for all the mixed oxides
were found to be monomodal and zirconia pores were more open. The results of
the acidity measurements and cumene cracking functionality indicates that whilst
pure zirconia has low total acidity, the incorporation of alumina increases its
acidity through a synergistic effect.
Keywords: ZrO2- Al2O3 , support
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| Language |
en_US
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| Subject |
ZrO2- Al2O3
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| Title |
Characterization of ZrO2 - Al2O3 mixed oxides support prepared by urea hydrolysis
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| Type |
Article
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