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Title: Characterization of Se-loaded molecular sieves A, X, Y, AlPO-5, and mordenite

Abstract

Selenium has been successfully loaded into molecular sieves A, X, Y, AlPO-5, and mordenite, and the products were characterized by using EXAFS, solid-state NMR, and diffuse-reflectance techniques. This study reveals selenium is predominantly of the trigonal (helical chains) form in all but the A sample, where only the Se/sub 8/-crown ring form is found. A mixture of allotropes and helical chains occupy the large 3D-pore and channel systems of molecular sieves X and Y; however, a single, probably fixed-pitch helical-chain allotrope occupies the more constrained 12-membered-ring channels found in mordenite and AlPO-5. The high degree of order in these last two sieves is reflected in a strong second-shell feature in the EXAFS spectra. 22 refs., 12 figs., 3 tabs.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
E. I. du Pont de Nemours and Co., Wilmington, DE (USA)
OSTI Identifier:
5833807
DOE Contract Number:  
AS05-80ER10742
Resource Type:
Journal Article
Journal Name:
Inorg. Chem.; (United States)
Additional Journal Information:
Journal Volume: 27:2
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; MOLECULAR SIEVES; SORPTIVE PROPERTIES; SELENIUM; ADSORPTION; ABSORPTION SPECTROSCOPY; EXPERIMENTAL DATA; NUCLEAR MAGNETIC RESONANCE; REFLECTIVITY; X RADIATION; ADSORBENTS; DATA; ELECTROMAGNETIC RADIATION; ELEMENTS; INFORMATION; IONIZING RADIATIONS; MAGNETIC RESONANCE; NUMERICAL DATA; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; RADIATIONS; RESONANCE; SEMIMETALS; SORPTION; SPECTROSCOPY; SURFACE PROPERTIES; 400201* - Chemical & Physicochemical Properties

Citation Formats

Parise, J B, MacDougall, J E, Herron, N, Farlee, R, Sleight, A W, Wang, Ying, Bein, T, Moller, K, and Moroney, L M. Characterization of Se-loaded molecular sieves A, X, Y, AlPO-5, and mordenite. United States: N. p., 1988. Web. doi:10.1021/ic00275a002.
Parise, J B, MacDougall, J E, Herron, N, Farlee, R, Sleight, A W, Wang, Ying, Bein, T, Moller, K, & Moroney, L M. Characterization of Se-loaded molecular sieves A, X, Y, AlPO-5, and mordenite. United States. https://doi.org/10.1021/ic00275a002
Parise, J B, MacDougall, J E, Herron, N, Farlee, R, Sleight, A W, Wang, Ying, Bein, T, Moller, K, and Moroney, L M. 1988. "Characterization of Se-loaded molecular sieves A, X, Y, AlPO-5, and mordenite". United States. https://doi.org/10.1021/ic00275a002.
@article{osti_5833807,
title = {Characterization of Se-loaded molecular sieves A, X, Y, AlPO-5, and mordenite},
author = {Parise, J B and MacDougall, J E and Herron, N and Farlee, R and Sleight, A W and Wang, Ying and Bein, T and Moller, K and Moroney, L M},
abstractNote = {Selenium has been successfully loaded into molecular sieves A, X, Y, AlPO-5, and mordenite, and the products were characterized by using EXAFS, solid-state NMR, and diffuse-reflectance techniques. This study reveals selenium is predominantly of the trigonal (helical chains) form in all but the A sample, where only the Se/sub 8/-crown ring form is found. A mixture of allotropes and helical chains occupy the large 3D-pore and channel systems of molecular sieves X and Y; however, a single, probably fixed-pitch helical-chain allotrope occupies the more constrained 12-membered-ring channels found in mordenite and AlPO-5. The high degree of order in these last two sieves is reflected in a strong second-shell feature in the EXAFS spectra. 22 refs., 12 figs., 3 tabs.},
doi = {10.1021/ic00275a002},
url = {https://www.osti.gov/biblio/5833807}, journal = {Inorg. Chem.; (United States)},
number = ,
volume = 27:2,
place = {United States},
year = {Wed Jan 27 00:00:00 EST 1988},
month = {Wed Jan 27 00:00:00 EST 1988}
}