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Thermal analysis and EPR study of copper species in mordenites prepared by conventional and microwave-assisted methods. / Shelyapina, Marina; Zvereva, Irina; Yafarova, Lilia; Bogdanov, Dmitrii; Sukharzhevskii, Stanislav; Zhukov, Yurii; Petranovskii, V.

в: Journal of Thermal Analysis and Calorimetry, Том 134, № 1, 10.2018, стр. 71-79.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Harvard

Shelyapina, M, Zvereva, I, Yafarova, L, Bogdanov, D, Sukharzhevskii, S, Zhukov, Y & Petranovskii, V 2018, 'Thermal analysis and EPR study of copper species in mordenites prepared by conventional and microwave-assisted methods', Journal of Thermal Analysis and Calorimetry, Том. 134, № 1, стр. 71-79. https://doi.org/10.1007/s10973-018-7016-2

APA

Shelyapina, M., Zvereva, I., Yafarova, L., Bogdanov, D., Sukharzhevskii, S., Zhukov, Y., & Petranovskii, V. (2018). Thermal analysis and EPR study of copper species in mordenites prepared by conventional and microwave-assisted methods. Journal of Thermal Analysis and Calorimetry, 134(1), 71-79. https://doi.org/10.1007/s10973-018-7016-2

Vancouver

Shelyapina M, Zvereva I, Yafarova L, Bogdanov D, Sukharzhevskii S, Zhukov Y и пр. Thermal analysis and EPR study of copper species in mordenites prepared by conventional and microwave-assisted methods. Journal of Thermal Analysis and Calorimetry. 2018 Окт.;134(1):71-79. https://doi.org/10.1007/s10973-018-7016-2

Author

Shelyapina, Marina ; Zvereva, Irina ; Yafarova, Lilia ; Bogdanov, Dmitrii ; Sukharzhevskii, Stanislav ; Zhukov, Yurii ; Petranovskii, V. / Thermal analysis and EPR study of copper species in mordenites prepared by conventional and microwave-assisted methods. в: Journal of Thermal Analysis and Calorimetry. 2018 ; Том 134, № 1. стр. 71-79.

BibTeX

@article{e2041a36dbd14364a07db450e0193fe8,
title = "Thermal analysis and EPR study of copper species in mordenites prepared by conventional and microwave-assisted methods",
abstract = "Copper-exchanged mordenites prepared by different methods, conventional and microwave assisted, have been investigatedby TG, DSC, temperature-programmed reduction (TPR), and EPR methods. TPR study of hydrated and annealed at573 and 973 K samples revealed that the copper reduction occurs directly from Cu2? to Cu0, and Cu2? ions are in differentlocal environments. The microwave-assisted treatment leads to formation of [Cu–O–Cu]2? species in the main mordenitechannels. The most easily recoverable copper in the fully hydrated samples corresponds to the individual Cu2? ionscoordinated by H2O molecules, and the number of these [Cu(H2O)n]2? complexes does not depend on the preparationmethod and the total copper content. According to the EPR study, upon sample dehydration, [Cu(H2O)n]2? species losewater and approach the wall of the zeolite forming a bond with reversible charge transfer from a framework oxygen toCu2?.",
keywords = "Copper, DSC, Electron paramagnetic resonance (EPR), Mordenite, TG, Temperature-programmed reduction (TPR), Zeolites, OXIDATION, CONVERSION, ACTIVE-SITES, EXCHANGED ZEOLITES, NO DECOMPOSITION, CU-ZSM5, OXYGEN, METHANE, NANOCOMPOSITE, CATALYSTS",
author = "Marina Shelyapina and Irina Zvereva and Lilia Yafarova and Dmitrii Bogdanov and Stanislav Sukharzhevskii and Yurii Zhukov and V. Petranovskii",
year = "2018",
month = oct,
doi = "10.1007/s10973-018-7016-2",
language = "English",
volume = "134",
pages = "71--79",
journal = "Journal of Thermal Analysis and Calorimetry",
issn = "1388-6150",
publisher = "Springer Nature",
number = "1",

}

RIS

TY - JOUR

T1 - Thermal analysis and EPR study of copper species in mordenites prepared by conventional and microwave-assisted methods

AU - Shelyapina, Marina

AU - Zvereva, Irina

AU - Yafarova, Lilia

AU - Bogdanov, Dmitrii

AU - Sukharzhevskii, Stanislav

AU - Zhukov, Yurii

AU - Petranovskii, V.

PY - 2018/10

Y1 - 2018/10

N2 - Copper-exchanged mordenites prepared by different methods, conventional and microwave assisted, have been investigatedby TG, DSC, temperature-programmed reduction (TPR), and EPR methods. TPR study of hydrated and annealed at573 and 973 K samples revealed that the copper reduction occurs directly from Cu2? to Cu0, and Cu2? ions are in differentlocal environments. The microwave-assisted treatment leads to formation of [Cu–O–Cu]2? species in the main mordenitechannels. The most easily recoverable copper in the fully hydrated samples corresponds to the individual Cu2? ionscoordinated by H2O molecules, and the number of these [Cu(H2O)n]2? complexes does not depend on the preparationmethod and the total copper content. According to the EPR study, upon sample dehydration, [Cu(H2O)n]2? species losewater and approach the wall of the zeolite forming a bond with reversible charge transfer from a framework oxygen toCu2?.

AB - Copper-exchanged mordenites prepared by different methods, conventional and microwave assisted, have been investigatedby TG, DSC, temperature-programmed reduction (TPR), and EPR methods. TPR study of hydrated and annealed at573 and 973 K samples revealed that the copper reduction occurs directly from Cu2? to Cu0, and Cu2? ions are in differentlocal environments. The microwave-assisted treatment leads to formation of [Cu–O–Cu]2? species in the main mordenitechannels. The most easily recoverable copper in the fully hydrated samples corresponds to the individual Cu2? ionscoordinated by H2O molecules, and the number of these [Cu(H2O)n]2? complexes does not depend on the preparationmethod and the total copper content. According to the EPR study, upon sample dehydration, [Cu(H2O)n]2? species losewater and approach the wall of the zeolite forming a bond with reversible charge transfer from a framework oxygen toCu2?.

KW - Copper

KW - DSC

KW - Electron paramagnetic resonance (EPR)

KW - Mordenite

KW - TG

KW - Temperature-programmed reduction (TPR)

KW - Zeolites

KW - OXIDATION

KW - CONVERSION

KW - ACTIVE-SITES

KW - EXCHANGED ZEOLITES

KW - NO DECOMPOSITION

KW - CU-ZSM5

KW - OXYGEN

KW - METHANE

KW - NANOCOMPOSITE

KW - CATALYSTS

UR - http://www.scopus.com/inward/record.url?scp=85042125308&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/thermal-analysis-epr-study-copper-species-mordenites-prepared-conventional-microwaveassisted-methods

U2 - 10.1007/s10973-018-7016-2

DO - 10.1007/s10973-018-7016-2

M3 - Article

VL - 134

SP - 71

EP - 79

JO - Journal of Thermal Analysis and Calorimetry

JF - Journal of Thermal Analysis and Calorimetry

SN - 1388-6150

IS - 1

ER -

ID: 16332192