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Partially Dehydrated Fully Zn2+-exchanged Zeolite Y (FAU, Si/Al = 1.70) and Its Structure
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 Title & Authors
Partially Dehydrated Fully Zn2+-exchanged Zeolite Y (FAU, Si/Al = 1.70) and Its Structure
Seo, Sung Man; Kim, Young Hun; Lee, Seok Hee; Lim, Woo Taik;
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 Abstract
The crystal structure of partially dehydrated fully -exchanged zeolite Y was determined by X-ray diffraction techniques in the cubic space group at 294(1) K and refined to the final error indices = 0.035/0.119 for -FAU. About 35.5 ions per unit cell are found at six distinct positions; sites I, I', a second I', II', II, and a second II. In sodalite cavities, the 11 water molecules coordinate to Zn(I'b) and/or Zn(II') ions; each of two bonds to a Zn(IIb) in supercages. Two different positions near 6-oxygen ring are due to their Si-Al ordering in tetrahedral site by Si/Al ratio leading to the different kinds of 6-rings.
 Keywords
Zinc;Zeolite Y;Structure;Ion exchange;Dehydrated;
 Language
English
 Cited by
 References
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