Study of the ethanolic tributylmethylammonium aluminosilicate solutions using 27Al NMR

Nasser Goudarzi; Mohammad Goodarzi; M. Arab Chamgangali; G. Bagherian

doi:10.1016/j.molstruc.2009.04.017

Study of the ethanolic tributylmethylammonium aluminosilicate solutions using ²⁷Al NMR

Nasser Goudarzi, Mohammad Goodarzi, M. Arab Chamgangali, G. Bagherian

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Alkaline solutions containing both silicate and aluminate ions are of considerable research interest inter alia because of their involvement in the synthesis of zeolites. In the present work, we use ²⁷Al NMR to characterize alkaline aqueous and ethanolic tributylmethylammonium aluminosilicate solutions with different Al/Si ratios. Tributylmethylammonium (TBMA) used as a cation template and no alkaline metals are used for preparation of aluminosilicate solutions. Aluminum-27 NMR spectra of TBMA aluminosilicate solutions indicate that considerable changes occurred by changing the Si/Al ratio. The distribution of aluminosilicate species was affected by the presence of the methanol and the method of mixing the silicate and aluminosilicate solutions. To understand the reaction between silicate and aluminate ions in this system, the evolutions of ²⁷Al NMR spectra with time are investigated.

Original language	English (US)
Pages (from-to)	2-8
Number of pages	7
Journal	Journal of Molecular Structure
Volume	930
Issue number	1-3
DOIs	https://doi.org/10.1016/j.molstruc.2009.04.017
State	Published - Jul 30 2009

Keywords

Al NMR spectroscopy
Ethanolic aluminosilicate solutions
Evolution with time
Tributylmethylammonium hydroxide

ASJC Scopus subject areas

Analytical Chemistry
Spectroscopy
Organic Chemistry
Inorganic Chemistry

Access to Document

10.1016/j.molstruc.2009.04.017

Cite this

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title = "Study of the ethanolic tributylmethylammonium aluminosilicate solutions using 27Al NMR",

abstract = "Alkaline solutions containing both silicate and aluminate ions are of considerable research interest inter alia because of their involvement in the synthesis of zeolites. In the present work, we use 27Al NMR to characterize alkaline aqueous and ethanolic tributylmethylammonium aluminosilicate solutions with different Al/Si ratios. Tributylmethylammonium (TBMA) used as a cation template and no alkaline metals are used for preparation of aluminosilicate solutions. Aluminum-27 NMR spectra of TBMA aluminosilicate solutions indicate that considerable changes occurred by changing the Si/Al ratio. The distribution of aluminosilicate species was affected by the presence of the methanol and the method of mixing the silicate and aluminosilicate solutions. To understand the reaction between silicate and aluminate ions in this system, the evolutions of 27Al NMR spectra with time are investigated.",

keywords = "Al NMR spectroscopy, Ethanolic aluminosilicate solutions, Evolution with time, Tributylmethylammonium hydroxide",

author = "Nasser Goudarzi and Mohammad Goodarzi and {Arab Chamgangali}, M. and G. Bagherian",

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T1 - Study of the ethanolic tributylmethylammonium aluminosilicate solutions using 27Al NMR

AU - Goudarzi, Nasser

AU - Goodarzi, Mohammad

AU - Arab Chamgangali, M.

AU - Bagherian, G.

PY - 2009/7/30

Y1 - 2009/7/30

N2 - Alkaline solutions containing both silicate and aluminate ions are of considerable research interest inter alia because of their involvement in the synthesis of zeolites. In the present work, we use 27Al NMR to characterize alkaline aqueous and ethanolic tributylmethylammonium aluminosilicate solutions with different Al/Si ratios. Tributylmethylammonium (TBMA) used as a cation template and no alkaline metals are used for preparation of aluminosilicate solutions. Aluminum-27 NMR spectra of TBMA aluminosilicate solutions indicate that considerable changes occurred by changing the Si/Al ratio. The distribution of aluminosilicate species was affected by the presence of the methanol and the method of mixing the silicate and aluminosilicate solutions. To understand the reaction between silicate and aluminate ions in this system, the evolutions of 27Al NMR spectra with time are investigated.

AB - Alkaline solutions containing both silicate and aluminate ions are of considerable research interest inter alia because of their involvement in the synthesis of zeolites. In the present work, we use 27Al NMR to characterize alkaline aqueous and ethanolic tributylmethylammonium aluminosilicate solutions with different Al/Si ratios. Tributylmethylammonium (TBMA) used as a cation template and no alkaline metals are used for preparation of aluminosilicate solutions. Aluminum-27 NMR spectra of TBMA aluminosilicate solutions indicate that considerable changes occurred by changing the Si/Al ratio. The distribution of aluminosilicate species was affected by the presence of the methanol and the method of mixing the silicate and aluminosilicate solutions. To understand the reaction between silicate and aluminate ions in this system, the evolutions of 27Al NMR spectra with time are investigated.

KW - Al NMR spectroscopy

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KW - Evolution with time

KW - Tributylmethylammonium hydroxide

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