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Lee, Jae Sung
Eco-friendly Catalysis and Energy Lab
Research Interests
  • Photocatalytic water splitting, artificial photosynthesis, fuel cells, heterogeneous catalysis

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Effect of pore size of mesoporous molecular sieves (MCM-41) on Al stability and acidity

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Title
Effect of pore size of mesoporous molecular sieves (MCM-41) on Al stability and acidity
Other Titles
Effect of pore size of mesoporous molecular sieves (MCM-41) on Al stability and acidity
Author
Feng, XiaobingLee, Jae SungLee, Jun WonLee, Jeong YongWei, DiHaller, G.L.
Keywords
Mesoporous molecular sieves; MCM-41; 27A1NMR; Acidity
Issue Date
1996-11
Publisher
ELSEVIER SCIENCE SA
Citation
CHEMICAL ENGINEERING JOURNAL, v.64, no.2, pp.255 - 263
Abstract
A matrix of mesoporous molecular sieves (MCM-41) with various Si/Al ratios and various pore sizes was synthesized. These were structurally characterized by X-ray diffraction, IR and Al-27 NMR. The relative acidity of these materials was estimated catalytically based on the isomerization selectivity of 2-methyl-2-pentene, The activity and selectivity of this reaction are affected by both the Si/Al ratio and the pore size at fixed composition. The stability of Al in the wall structure (as tetrahedral Al) is also affected by the pore size, the smallest pore size resulting in the most stable tetrahedral Al
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ISSN
1385-8947
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ECHE_Journal Papers
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