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Kwak, Ja Hun
Molecular Catalysis lab
Research Interests
  • Heterogeneous catalysis, molecular catalysis, ASlumima, zeolites

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Critical role of (100) facets on Γ-Al2O3 for ethanol dehydration: Combined efforts of morphology-controlled synthesis and TEM study

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Title
Critical role of (100) facets on Γ-Al2O3 for ethanol dehydration: Combined efforts of morphology-controlled synthesis and TEM study
Author
Lee, JaekyoungJang, Eun JeongJeong, Hu YoungKwak, Ja Hun
Issue Date
2018-04
Publisher
ELSEVIER SCIENCE BV
Citation
APPLIED CATALYSIS A-GENERAL, v.556, pp.121 - 128
Abstract
In this work, the effect of crystal facets on the catalytic behavior of γ-Al2O3 was investigated by X-ray diffraction, transmission electron microscopy, temperature-programmed desorption of ethanol, solid-state 27Al NMR, infrared spectroscopy, and ethanol dehydration reaction. A series of platelet γ-Al2O3 were synthesized, in which the relative ratio of (100) facets had been systematically increased. Ethylene formation increased with increasing (100) facets, clearly demonstrating the critical role of these facets as active sites for ethanol dehydration on γ-Al2O3. This systematic approach is helpful for a better understanding of facet-dependent catalytic properties of γ-Al2O3 that arise from the interaction between the supported metal and the crystal facets.
URI
https://scholarworks.unist.ac.kr/handle/201301/23890
URL
https://www.sciencedirect.com/science/article/pii/S0926860X1830084X?via%3Dihub
DOI
10.1016/j.apcata.2018.02.018
ISSN
0926-860X
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UCRF_Journal Papers
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