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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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Thermal and chemical stability of titanium-substituted MCM-41

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Title
Thermal and chemical stability of titanium-substituted MCM-41
Other Titles
Thermal and chemical stability of titanium-substituted MCM-41
Author
Rhee, Chang HounLee, Jae Sung
Keywords
Ti-substituted MCM-41; stability; dehydrogenation of ethanol; hydroxylation of phenol; XRD; XANES
Issue Date
1996-08
Publisher
SPRINGER
Citation
CATALYSIS LETTERS, v.40, no.3-4, pp.261 - 264
Abstract
The thermal and chemical stability of a titanium-substituted MCM41 (TiMCM-41) with Si/Ti mole ratio of 39 and pore diameter of 2.4 nm was studied with the small-angle X-ray diffraction and X-ray absorption near-edge structure techniques. The TiMCM-41 was stable in helium flow below 1273 K and under gas-phase reaction conditions of ethanol dehydrogenation (ethanol/O-2 = 1 mol/mol, 373-723 K). Under liquid-phase reaction conditions of phenol hydroxylation (phenol/35% H2O2/acetone in moles = 3 : 1 :7, 333 K), however, it lost the MCM-41 structure and titanium was leached out of the silicalite framework
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DOI
10.1007/BF00815293
ISSN
1011-372X
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ECHE_Journal Papers
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