Formation of copper nano-species of de-NOx catalysts based on Cu-mordenite: Role of variable silica-alumina ratio and effects of adsorbed water

V. Petranovskii; A. Simakov; F. Chavez-Rivas; R. Zamorano-Ulloa; R. Marzke; A. Efimov; A. Pestryakov; M. Á Hernández Espinosa

doi:10.1117/12.560285

Formation of copper nano-species of de-NOx catalysts based on Cu-mordenite: Role of variable silica-alumina ratio and effects of adsorbed water

V. Petranovskii, A. Simakov, F. Chavez-Rivas, R. Zamorano-Ulloa, R. Marzke, A. Efimov, A. Pestryakov, M. Á Hernández Espinosa

Escuela Superior de Física y Matemáticas (ESFM)

Research output: Contribution to journal › Conference article › peer-review

Abstract

Cu-mordenites catalysts are among the most active available for de-NOx at moderate temperatures. Silica-alumina molar ratio of mordenite supports strongly affects conversion efficiency for NOx. Copper mordenites' rapid deactivation by water has led us to investigate the effects of adsorbed water on framework and extra-framework ions, mainly using NMR of ²⁷Al and ¹H. Adsorbed water content has been monitored and controlled in mordenite samples via TGA, as well as by vacuum calcination. Several NMR measurements have been performed to aid in the interpretation of spectra, including variable pulse-delay spin echo and ¹H-²⁷Al TRAPDOR. A number of surface characterization techniques have been applied to both H- and Cu-mordenites. Catalytic experiments showed that the reduction of NOx to N₂ and O₂ by hydrocarbons reach 95-98 % depending on the catalyst composition.

Translated title of the contribution	Formación de nanoespecies de cobre de catalizadores de eliminación de NOx basados en Cu-mordenita: papel de la relación sílice-alúmina variable y efectos del agua adsorbida
Original language	English
Article number	37
Pages (from-to)	259-267
Number of pages	9
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5508
DOIs	https://doi.org/10.1117/12.560285
State	Published - 2004
Event	Complex Mediums V: Light and Complexity - Denver, CO, United States Duration: 4 Aug 2004 → 5 Aug 2004

Keywords

Cluster
Copper
Mordenite
NMR
Nanoparticles
SiO/Al O
UV-Vis
de-NO

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Petranovskii, V., Simakov, A., Chavez-Rivas, F., Zamorano-Ulloa, R., Marzke, R., Efimov, A., Pestryakov, A., & Espinosa, M. Á. H. (2004). Formation of copper nano-species of de-NOx catalysts based on Cu-mordenite: Role of variable silica-alumina ratio and effects of adsorbed water. Proceedings of SPIE - The International Society for Optical Engineering, 5508, 259-267. Article 37. https://doi.org/10.1117/12.560285

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title = "Formation of copper nano-species of de-NOx catalysts based on Cu-mordenite: Role of variable silica-alumina ratio and effects of adsorbed water",

abstract = "Cu-mordenites catalysts are among the most active available for de-NOx at moderate temperatures. Silica-alumina molar ratio of mordenite supports strongly affects conversion efficiency for NOx. Copper mordenites' rapid deactivation by water has led us to investigate the effects of adsorbed water on framework and extra-framework ions, mainly using NMR of 27Al and 1H. Adsorbed water content has been monitored and controlled in mordenite samples via TGA, as well as by vacuum calcination. Several NMR measurements have been performed to aid in the interpretation of spectra, including variable pulse-delay spin echo and 1H-27Al TRAPDOR. A number of surface characterization techniques have been applied to both H- and Cu-mordenites. Catalytic experiments showed that the reduction of NOx to N2 and O2 by hydrocarbons reach 95-98 % depending on the catalyst composition.",

keywords = "Cluster, Copper, Mordenite, NMR, Nanoparticles, SiO/Al O, UV-Vis, de-NO",

author = "V. Petranovskii and A. Simakov and F. Chavez-Rivas and R. Zamorano-Ulloa and R. Marzke and A. Efimov and A. Pestryakov and Espinosa, {M. {\'A} Hern{\'a}ndez}",

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doi = "10.1117/12.560285",

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Petranovskii, V, Simakov, A, Chavez-Rivas, F , Zamorano-Ulloa, R, Marzke, R, Efimov, A, Pestryakov, A & Espinosa, MÁH 2004, 'Formation of copper nano-species of de-NOx catalysts based on Cu-mordenite: Role of variable silica-alumina ratio and effects of adsorbed water', Proceedings of SPIE - The International Society for Optical Engineering, vol. 5508, 37, pp. 259-267. https://doi.org/10.1117/12.560285

Formation of copper nano-species of de-NOx catalysts based on Cu-mordenite: Role of variable silica-alumina ratio and effects of adsorbed water. / Petranovskii, V.; Simakov, A.; Chavez-Rivas, F. et al.
In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5508, 37, 2004, p. 259-267.

Research output: Contribution to journal › Conference article › peer-review

TY - JOUR

T1 - Formation of copper nano-species of de-NOx catalysts based on Cu-mordenite

T2 - Complex Mediums V: Light and Complexity

AU - Petranovskii, V.

AU - Simakov, A.

AU - Chavez-Rivas, F.

AU - Zamorano-Ulloa, R.

AU - Marzke, R.

AU - Efimov, A.

AU - Pestryakov, A.

AU - Espinosa, M. Á Hernández

PY - 2004

Y1 - 2004

N2 - Cu-mordenites catalysts are among the most active available for de-NOx at moderate temperatures. Silica-alumina molar ratio of mordenite supports strongly affects conversion efficiency for NOx. Copper mordenites' rapid deactivation by water has led us to investigate the effects of adsorbed water on framework and extra-framework ions, mainly using NMR of 27Al and 1H. Adsorbed water content has been monitored and controlled in mordenite samples via TGA, as well as by vacuum calcination. Several NMR measurements have been performed to aid in the interpretation of spectra, including variable pulse-delay spin echo and 1H-27Al TRAPDOR. A number of surface characterization techniques have been applied to both H- and Cu-mordenites. Catalytic experiments showed that the reduction of NOx to N2 and O2 by hydrocarbons reach 95-98 % depending on the catalyst composition.

AB - Cu-mordenites catalysts are among the most active available for de-NOx at moderate temperatures. Silica-alumina molar ratio of mordenite supports strongly affects conversion efficiency for NOx. Copper mordenites' rapid deactivation by water has led us to investigate the effects of adsorbed water on framework and extra-framework ions, mainly using NMR of 27Al and 1H. Adsorbed water content has been monitored and controlled in mordenite samples via TGA, as well as by vacuum calcination. Several NMR measurements have been performed to aid in the interpretation of spectra, including variable pulse-delay spin echo and 1H-27Al TRAPDOR. A number of surface characterization techniques have been applied to both H- and Cu-mordenites. Catalytic experiments showed that the reduction of NOx to N2 and O2 by hydrocarbons reach 95-98 % depending on the catalyst composition.

KW - Cluster

KW - Copper

KW - Mordenite

KW - NMR

KW - Nanoparticles

KW - SiO/Al O

KW - UV-Vis

KW - de-NO

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SN - 0277-786X

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SP - 259

EP - 267

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

M1 - 37

Y2 - 4 August 2004 through 5 August 2004

ER -

Formation of copper nano-species of de-NOx catalysts based on Cu-mordenite: Role of variable silica-alumina ratio and effects of adsorbed water

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Keywords

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