Recognition of depth composition profiles of copper-exchanged mordenites applying analytical methods with different depth vision

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Recognition of depth composition profiles of copper-exchanged mordenites applying analytical methods with different depth vision. / Zhukov, Yurii M.; Shelyapina, Marina G.; Efimov, Andrey Yu.; Zhizhin, Evgeniy V.; Petranovskii, Vitalii.

In: Materials Chemistry and Physics, Vol. 236, 121787, 01.10.2019, p. 121787.

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

BibTeX

@article{ddd7c0d7fbd4452296130d07802a53d5,

title = "Recognition of depth composition profiles of copper-exchanged mordenites applying analytical methods with different depth vision",

abstract = "The set of copper-exchanged mordenites with variations in Si/Al atomic ratio (6.5 and 10) and exchangeable counter-cations (Na +, [NH 4] +, H +) prepared by different methods (conventional and microwave assisted), has been studied. Application of nondestructive analytical methods with different depth vision, such as EDS and XPS, simultaneously with the ICP-OES method of bulk analysis has permitted to analyze the distribution of elements in the studied Cu-mordenites and to evaluate their depth profiling. XRD study confirms that the applied ion-exchange procedures do not damage the mordenite framework and no additional phases appear. The lattice parameter changes point out that all the copper is exchangeable. The process of copper-exchange runs parallel to dealumination reaction. 27Al MAS NMR study confirms the local character of partial destruction of the zeolite framework in the samples obtained from H +-mordenite. Based on the comprehensive analysis a three-ply structure of Cu-zeolite particles has been proposed. ",

keywords = "Copper zeolites, EDS, ICP-OES, Microwave-assisted ion-exchange, XPS, SURFACE, IONS, ZEOLITES",

author = "Zhukov, {Yurii M.} and Shelyapina, {Marina G.} and Efimov, {Andrey Yu.} and Zhizhin, {Evgeniy V.} and Vitalii Petranovskii",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = oct,

day = "1",

doi = "10.1016/j.matchemphys.2019.121787",

language = "English",

volume = "236",

pages = "121787",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Recognition of depth composition profiles of copper-exchanged mordenites applying analytical methods with different depth vision

AU - Zhukov, Yurii M.

AU - Shelyapina, Marina G.

AU - Efimov, Andrey Yu.

AU - Zhizhin, Evgeniy V.

AU - Petranovskii, Vitalii

PY - 2019/10/1

Y1 - 2019/10/1

N2 - The set of copper-exchanged mordenites with variations in Si/Al atomic ratio (6.5 and 10) and exchangeable counter-cations (Na +, [NH 4] +, H +) prepared by different methods (conventional and microwave assisted), has been studied. Application of nondestructive analytical methods with different depth vision, such as EDS and XPS, simultaneously with the ICP-OES method of bulk analysis has permitted to analyze the distribution of elements in the studied Cu-mordenites and to evaluate their depth profiling. XRD study confirms that the applied ion-exchange procedures do not damage the mordenite framework and no additional phases appear. The lattice parameter changes point out that all the copper is exchangeable. The process of copper-exchange runs parallel to dealumination reaction. 27Al MAS NMR study confirms the local character of partial destruction of the zeolite framework in the samples obtained from H +-mordenite. Based on the comprehensive analysis a three-ply structure of Cu-zeolite particles has been proposed.

AB - The set of copper-exchanged mordenites with variations in Si/Al atomic ratio (6.5 and 10) and exchangeable counter-cations (Na +, [NH 4] +, H +) prepared by different methods (conventional and microwave assisted), has been studied. Application of nondestructive analytical methods with different depth vision, such as EDS and XPS, simultaneously with the ICP-OES method of bulk analysis has permitted to analyze the distribution of elements in the studied Cu-mordenites and to evaluate their depth profiling. XRD study confirms that the applied ion-exchange procedures do not damage the mordenite framework and no additional phases appear. The lattice parameter changes point out that all the copper is exchangeable. The process of copper-exchange runs parallel to dealumination reaction. 27Al MAS NMR study confirms the local character of partial destruction of the zeolite framework in the samples obtained from H +-mordenite. Based on the comprehensive analysis a three-ply structure of Cu-zeolite particles has been proposed.

KW - Copper zeolites

KW - EDS

KW - ICP-OES

KW - Microwave-assisted ion-exchange

KW - XPS

KW - SURFACE

KW - IONS

KW - ZEOLITES

UR - https://linkinghub.elsevier.com/retrieve/pii/S0254058419305772

UR - http://www.mendeley.com/research/recognition-depth-composition-profiles-copperexchanged-mordenites-applying-analytical-methods-differ

UR - http://www.scopus.com/inward/record.url?scp=85068222690&partnerID=8YFLogxK

U2 - 10.1016/j.matchemphys.2019.121787

DO - 10.1016/j.matchemphys.2019.121787

M3 - Article

VL - 236

SP - 121787

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

SN - 0254-0584

M1 - 121787

ER -

ID: 43031322