NDLI: Determination of temperature-induced changes in the structure of the nearest environment of aluminum in mordenite zeolites from x-ray absorption near-edge structure spectra

Content Provider	Springer Nature Link
Author	Bugaev, L. A. Latokha, Ya. V. Avakyan, L. A. Bokhoven, E. A.
Copyright Year	2006
Abstract	The structure of the nearest environment of aluminum in mordenite zeolites was investigated at temperatures up to 1000 K using the Al K x-ray absorption near-edge structure (XANES) spectra. The interatomic Al-O distances and the number of coordinating oxygen atoms were determined by Fourier transformation of Al K-XANES spectra and fitting of the contribution of the nearest oxygen atoms. The exactness and stability of the obtained values of structural parameters were verified using the Al K-XANES spectrum of the model Na-mordenite zeolite. To determine the coordination of aluminum in H-mordenites in the temperature range under study, fitting of the contribution of coordinating oxygen atoms was performed using both the single-sphere model of the nearest environment of aluminum and two-sphere fitting for the most probable structural models of the nearest environment of aluminum. Such models were chosen based on the analysis of the specific preedge features and fine structure of the XANES spectra, as well as NMR data. With this approach, the simultaneous presence of tetra-and hexacoordinated aluminum in H-mordenite at T = 300 K was established and the concentrations of such mixed states were determined. The presence of strong distortions of the oxygen tetrahedron coordinating the aluminum atom in dehydrated H-mordenite at 575 K was shown and the Al-O distances for such distortions were determined. The simultaneous presence of tri-and tetracoordinated aluminum in H-mordenite at 985 K was established and the fraction of tricoordinated aluminum was estimated quantitatively.
Starting Page	563
Ending Page	571
Page Count	9
File Format	PDF
ISSN	0030400X
Journal	Optics and Spectroscopy
Volume Number	100
Issue Number	4
e-ISSN	15626911
Language	English
Publisher	Nauka/Interperiodica
Publisher Date	2006-01-01
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optical Spectroscopy, Ultrafast Optics
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Determination of the factorized atomic part of the X-ray absorption cross section in the near-edge spectrum: Application to the analysis of structural changes in β zeolite with an increase in the aluminum content

Resolution of interatomic distances by fourier analysis of short energy-range X-ray absorption spectra

Analysis of the polarization dependence of the N K edge X-ray absorption fine structure in InN

Effect of Aluminum on the Local Structure of Silicon in Zeolites as Studied by Si K Edge X-ray Absorption Near-Edge Fine Structure: Spectra Simulation with a Non-Muffin Tin Atomic Background

Theoretical interpretation of spin-polarized X-ray absorption spectra of Mn in MnP

High-resolution X-ray emission Mα and Mβ spectra of Bi atoms

Determination of the local atomic structure of material from X-ray absorption spectroscopy data without fourier analysis of experimental spectra

X-ray absorption spectroscopy: EXAFS (Extended X-ray Absorption Fine Structure) and XANES (X-ray Absorption Near Edge Structure)

Mα and Mβ X-ray emission spectra of Au atoms upon photoionization of L subshells

Determination of temperature-induced changes in the structure of the nearest environment of aluminum in mordenite zeolites from x-ray absorption near-edge structure spectra

Similar Documents

Determination of the factorized atomic part of the X-ray absorption cross section in the near-edge spectrum: Application to the analysis of structural changes in β zeolite with an increase in the aluminum content

Resolution of interatomic distances by fourier analysis of short energy-range X-ray absorption spectra

Analysis of the polarization dependence of the N K edge X-ray absorption fine structure in InN

Effect of Aluminum on the Local Structure of Silicon in Zeolites as Studied by Si K Edge X-ray Absorption Near-Edge Fine Structure: Spectra Simulation with a Non-Muffin Tin Atomic Background

Theoretical interpretation of spin-polarized X-ray absorption spectra of Mn in MnP

High-resolution X-ray emission Mα and Mβ spectra of Bi atoms

Determination of the local atomic structure of material from X-ray absorption spectroscopy data without fourier analysis of experimental spectra

X-ray absorption spectroscopy: EXAFS (Extended X-ray Absorption Fine Structure) and XANES (X-ray Absorption Near Edge Structure)

Mα and Mβ X-ray emission spectra of Au atoms upon photoionization of L subshells

Determination of temperature-induced changes in the structure of the nearest environment of aluminum in mordenite zeolites from x-ray absorption near-edge structure spectra