Abstract
Characterization of both the acidic and basic sites of αLiAIO2, γLiAIO2, and calcined "HAIO2" was carried out with the isopropyl alcohol probe reaction. All three materials catalyzed the formation of both propylene and acetone. The formation of propylene is indicative of acidic-basic pair sites, while the presence of acetone is indicative of basic sites. In addition to the formation of both propylene and acetone, base-catalyzed acetone aldol condensation products were formed on both αLiAIO2 and calcined "HAIO2." Both materials produced a C6DIENE (2-methyl-1,3-pentadiene or 4-methyl-1,3-pentadiene) aldol condensation product, while αLiAIO2 also produced the aldol condensation products 4M2PONE (4-methyl-2-pentanone) and 4M2POL (4-methyl-2-pentanol). The reaction pathways that describe the formation of the various C6 products were used to infer the nature of the basic sites on the materials. Additional information obtained from TPD and FTIR of chemisorbed CO2 demonstrate that the basic sites on αLiAIO2 are similar in strength and number to MgO.
| Original language | English |
|---|---|
| Pages (from-to) | 155-165 |
| Number of pages | 11 |
| Journal | Journal of Catalysis |
| Volume | 146 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1994 |
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ASJC Scopus subject areas
- Catalysis
- Process Chemistry and Technology
Cite this
Characterization of the acidic and basic properties of αLiAIO2, γLiAIO2, and calcined "HAIO2" using isopropyl alcohol. / Tomczak, D. C.; Allen, J. L.; Poeppelmeier, Kenneth R.
In: Journal of Catalysis, Vol. 146, No. 1, 1994, p. 155-165.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Characterization of the acidic and basic properties of αLiAIO2, γLiAIO2, and calcined "HAIO2" using isopropyl alcohol
AU - Tomczak, D. C.
AU - Allen, J. L.
AU - Poeppelmeier, Kenneth R
PY - 1994
Y1 - 1994
N2 - Characterization of both the acidic and basic sites of αLiAIO2, γLiAIO2, and calcined "HAIO2" was carried out with the isopropyl alcohol probe reaction. All three materials catalyzed the formation of both propylene and acetone. The formation of propylene is indicative of acidic-basic pair sites, while the presence of acetone is indicative of basic sites. In addition to the formation of both propylene and acetone, base-catalyzed acetone aldol condensation products were formed on both αLiAIO2 and calcined "HAIO2." Both materials produced a C6DIENE (2-methyl-1,3-pentadiene or 4-methyl-1,3-pentadiene) aldol condensation product, while αLiAIO2 also produced the aldol condensation products 4M2PONE (4-methyl-2-pentanone) and 4M2POL (4-methyl-2-pentanol). The reaction pathways that describe the formation of the various C6 products were used to infer the nature of the basic sites on the materials. Additional information obtained from TPD and FTIR of chemisorbed CO2 demonstrate that the basic sites on αLiAIO2 are similar in strength and number to MgO.
AB - Characterization of both the acidic and basic sites of αLiAIO2, γLiAIO2, and calcined "HAIO2" was carried out with the isopropyl alcohol probe reaction. All three materials catalyzed the formation of both propylene and acetone. The formation of propylene is indicative of acidic-basic pair sites, while the presence of acetone is indicative of basic sites. In addition to the formation of both propylene and acetone, base-catalyzed acetone aldol condensation products were formed on both αLiAIO2 and calcined "HAIO2." Both materials produced a C6DIENE (2-methyl-1,3-pentadiene or 4-methyl-1,3-pentadiene) aldol condensation product, while αLiAIO2 also produced the aldol condensation products 4M2PONE (4-methyl-2-pentanone) and 4M2POL (4-methyl-2-pentanol). The reaction pathways that describe the formation of the various C6 products were used to infer the nature of the basic sites on the materials. Additional information obtained from TPD and FTIR of chemisorbed CO2 demonstrate that the basic sites on αLiAIO2 are similar in strength and number to MgO.
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UR - http://www.scopus.com/inward/citedby.url?scp=0000463184&partnerID=8YFLogxK
U2 - 10.1016/0021-9517(94)90018-3
DO - 10.1016/0021-9517(94)90018-3
M3 - Article
VL - 146
SP - 155
EP - 165
JO - Journal of Catalysis
JF - Journal of Catalysis
SN - 0021-9517
IS - 1
ER -