Reduction of nickel ions in mordenites with different SiO 2/Al2O3 molar ratios

Abstract

The aim of present work was to study the influence of SiO ₂/Al₂O₃ molar ratio (MR) on nickel behavior in the mordenites with wide variation of MR during reduction in hydrogen flow. It was found that during reduction treatment variation of MR in mordenite from 10 to 206 influences reducibility and mobility of reduced nickel species. Stability of the reduced samples during storage in air at ambient conditions also depends on molar ratio. Variation of MR of mordenite does not change crystal structure, but results in different ionic properties. This effect is explained by variation of acidity of zeolite matrix in line with variation of chemical composition.

Original language	English
Title of host publication	Proceedings - 2012 7th International Forum on Strategic Technology, IFOST 2012
DOIs	https://doi.org/10.1109/IFOST.2012.6357577
Publication status	Published - 2012
Event	2012 7th International Forum on Strategic Technology, IFOST 2012 - Tomsk, Russian Federation Duration: 18 Sep 2012 → 21 Sep 2012

Other

Other	2012 7th International Forum on Strategic Technology, IFOST 2012
Country	Russian Federation
City	Tomsk
Period	18.9.12 → 21.9.12

Keywords

mordenite
nanoparticles
nickel
SiO/AlO molar ratio
zeolites

ASJC Scopus subject areas

Management of Technology and Innovation

Access to Document

10.1109/IFOST.2012.6357577

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Reduction of nickel ions in mordenites with different SiO ₂/Al₂O₃ molar ratios. / Petranovskii, V.; Pestryakov, A.; Herandez, M. A.; Rivas, F. Chavez; Ulloa, R. Zamorano; Berlier, G.; Coluccia, S.; Simakov, A.

Proceedings - 2012 7th International Forum on Strategic Technology, IFOST 2012. 2012. 6357577.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Petranovskii, V, Pestryakov, A, Herandez, MA, Rivas, FC, Ulloa, RZ, Berlier, G, Coluccia, S & Simakov, A 2012, Reduction of nickel ions in mordenites with different SiO ₂/Al₂O₃ molar ratios. in Proceedings - 2012 7th International Forum on Strategic Technology, IFOST 2012., 6357577, 2012 7th International Forum on Strategic Technology, IFOST 2012, Tomsk, Russian Federation, 18.9.12. https://doi.org/10.1109/IFOST.2012.6357577

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abstract = "The aim of present work was to study the influence of SiO 2/Al2O3 molar ratio (MR) on nickel behavior in the mordenites with wide variation of MR during reduction in hydrogen flow. It was found that during reduction treatment variation of MR in mordenite from 10 to 206 influences reducibility and mobility of reduced nickel species. Stability of the reduced samples during storage in air at ambient conditions also depends on molar ratio. Variation of MR of mordenite does not change crystal structure, but results in different ionic properties. This effect is explained by variation of acidity of zeolite matrix in line with variation of chemical composition.",

keywords = "mordenite, nanoparticles, nickel, SiO/AlO molar ratio, zeolites",

author = "V. Petranovskii and A. Pestryakov and Herandez, {M. A.} and Rivas, {F. Chavez} and Ulloa, {R. Zamorano} and G. Berlier and S. Coluccia and A. Simakov",

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AU - Petranovskii, V.

AU - Pestryakov, A.

AU - Herandez, M. A.

AU - Rivas, F. Chavez

AU - Ulloa, R. Zamorano

AU - Berlier, G.

AU - Coluccia, S.

AU - Simakov, A.

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AB - The aim of present work was to study the influence of SiO 2/Al2O3 molar ratio (MR) on nickel behavior in the mordenites with wide variation of MR during reduction in hydrogen flow. It was found that during reduction treatment variation of MR in mordenite from 10 to 206 influences reducibility and mobility of reduced nickel species. Stability of the reduced samples during storage in air at ambient conditions also depends on molar ratio. Variation of MR of mordenite does not change crystal structure, but results in different ionic properties. This effect is explained by variation of acidity of zeolite matrix in line with variation of chemical composition.

KW - mordenite

KW - nanoparticles

KW - nickel

KW - SiO/AlO molar ratio

KW - zeolites

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