Abstract
Granular γ-Al2O3 support and 8 wt % CuO/γ-A2O3 catalyst were synthesized by a sol-gel granulation method. The pore structure, crush strength, hardness, and elasticity of these sol-gel-derived catalysts were studied and compared with similar commercial catalysts prepared by non-sol-gel methods. Alumina and CuO-coated alumina granular particles prepared by different methods have different macro- and microstructure. The sol-gel-derived granular γ-alumina and CuO-coated γ-alumina granular particles have a structure defined by compact packing of uniform, nanosized γ-alumina crystallites. They are characterized by a more uniform pore size distribution and larger surface area as compared to similar commercial samples with a structure defined by packing of aggregates consisting of nonuniform γ-alumina crystallites. Because of the differences in the macro- and microstructure, the sol-gel-derived granular samples offer higher crush strength and greater hardness than the commercial samples.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 442-447 |
| Number of pages | 6 |
| Journal | Industrial and Engineering Chemistry Research |
| Volume | 42 |
| Issue number | 3 |
| State | Published - Feb 5 2003 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Polymers and Plastics
- Environmental Science(all)
- Chemical Engineering (miscellaneous)
Cite this
Structural and mechanical properties of nanostructured granular alumina catalysts. / Buelna, G.; Lin, Jerry; Liu, L. X.; Litster, J. D.
In: Industrial and Engineering Chemistry Research, Vol. 42, No. 3, 05.02.2003, p. 442-447.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Structural and mechanical properties of nanostructured granular alumina catalysts
AU - Buelna, G.
AU - Lin, Jerry
AU - Liu, L. X.
AU - Litster, J. D.
PY - 2003/2/5
Y1 - 2003/2/5
N2 - Granular γ-Al2O3 support and 8 wt % CuO/γ-A2O3 catalyst were synthesized by a sol-gel granulation method. The pore structure, crush strength, hardness, and elasticity of these sol-gel-derived catalysts were studied and compared with similar commercial catalysts prepared by non-sol-gel methods. Alumina and CuO-coated alumina granular particles prepared by different methods have different macro- and microstructure. The sol-gel-derived granular γ-alumina and CuO-coated γ-alumina granular particles have a structure defined by compact packing of uniform, nanosized γ-alumina crystallites. They are characterized by a more uniform pore size distribution and larger surface area as compared to similar commercial samples with a structure defined by packing of aggregates consisting of nonuniform γ-alumina crystallites. Because of the differences in the macro- and microstructure, the sol-gel-derived granular samples offer higher crush strength and greater hardness than the commercial samples.
AB - Granular γ-Al2O3 support and 8 wt % CuO/γ-A2O3 catalyst were synthesized by a sol-gel granulation method. The pore structure, crush strength, hardness, and elasticity of these sol-gel-derived catalysts were studied and compared with similar commercial catalysts prepared by non-sol-gel methods. Alumina and CuO-coated alumina granular particles prepared by different methods have different macro- and microstructure. The sol-gel-derived granular γ-alumina and CuO-coated γ-alumina granular particles have a structure defined by compact packing of uniform, nanosized γ-alumina crystallites. They are characterized by a more uniform pore size distribution and larger surface area as compared to similar commercial samples with a structure defined by packing of aggregates consisting of nonuniform γ-alumina crystallites. Because of the differences in the macro- and microstructure, the sol-gel-derived granular samples offer higher crush strength and greater hardness than the commercial samples.
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UR - http://www.scopus.com/inward/citedby.url?scp=0037419782&partnerID=8YFLogxK
M3 - Article
VL - 42
SP - 442
EP - 447
JO - Industrial & Engineering Chemistry Product Research and Development
JF - Industrial & Engineering Chemistry Product Research and Development
SN - 0019-7890
IS - 3
ER -