Nitrogen adsorption at ca. 77.4 K on partially hydrated and anhydrous α-Al                         
                        2
                                                 O                         
                        3

Maxim S. Mel’gunov; Artem B. Ayupov; Elena A. Krapivina; Elena A. Mel’gunova

doi:10.1007/s10450-019-00055-z

Nitrogen adsorption at ca. 77.4 K on partially hydrated and anhydrous α-Al ₂ O ₃

Maxim S. Mel’gunov, Artem B. Ayupov, Elena A. Krapivina, Elena A. Mel’gunova

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

1 Цитирования (Scopus)

Аннотация

N ₂ adsorption isotherms at ca. 77 K on macroporous α-Al ₂ O ₃ have been measured and analyzed in the frameworks of the classic thermodynamic approach, with independent experimental data obtained by means of SEM-EDX, XRD, TGA, helium pycnometry, and mercury porosimetry taken into account. It is shown, that presence of adsorbed water considerably influences N ₂ adsorption, which gradually increases with temperature of the degas treatment. Simultaneously, the shape of the isotherms has a trend to change from Type II to Type VI, that assumes changing of adsorption mechanism from progressive increasing of the adsorbed layer thickness towards layer-by-layer adsorption. Corrected and smoothed isotherms are presented in the tabular form as reference for subsequent more comprehensive analysis using molecular statistical approaches.

Язык оригинала	английский
Страницы (с-по)	601-611
Число страниц	11
Журнал	Adsorption
Том	25
Номер выпуска	3
DOI	https://doi.org/10.1007/s10450-019-00055-z
Состояние	Опубликовано - апр 2019

Доступ к документу

10.1007/s10450-019-00055-z

Link to publication in Scopus

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Цитировать

Mel’gunov, M. S., Ayupov, A. B., Krapivina, E. A., & Mel’gunova, E. A. (2019). Nitrogen adsorption at ca. 77.4 K on partially hydrated and anhydrous α-Al ₂ O ₃. Adsorption, 25(3), 601-611. https://doi.org/10.1007/s10450-019-00055-z

Mel’gunov, Maxim S. ; Ayupov, Artem B. ; Krapivina, Elena A. ; Mel’gunova, Elena A. / Nitrogen adsorption at ca. 77.4 K on partially hydrated and anhydrous α-Al ₂ O ₃. В: Adsorption. 2019 ; Том 25, № 3. стр. 601-611.

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title = "Nitrogen adsorption at ca. 77.4 K on partially hydrated and anhydrous α-Al 2 O 3",

abstract = " N 2 adsorption isotherms at ca. 77 K on macroporous α-Al 2 O 3 have been measured and analyzed in the frameworks of the classic thermodynamic approach, with independent experimental data obtained by means of SEM-EDX, XRD, TGA, helium pycnometry, and mercury porosimetry taken into account. It is shown, that presence of adsorbed water considerably influences N 2 adsorption, which gradually increases with temperature of the degas treatment. Simultaneously, the shape of the isotherms has a trend to change from Type II to Type VI, that assumes changing of adsorption mechanism from progressive increasing of the adsorbed layer thickness towards layer-by-layer adsorption. Corrected and smoothed isotherms are presented in the tabular form as reference for subsequent more comprehensive analysis using molecular statistical approaches. ",

keywords = "Alumina, Corundum, N, Reference adsorption, DISTRIBUTIONS, N-2, AREA, PORE SYSTEMS, SURFACE, CATALYSTS",

author = "Mel{\textquoteright}gunov, {Maxim S.} and Ayupov, {Artem B.} and Krapivina, {Elena A.} and Mel{\textquoteright}gunova, {Elena A.}",

year = "2019",

month = apr,

doi = "10.1007/s10450-019-00055-z",

language = "English",

volume = "25",

pages = "601--611",

journal = "Adsorption",

issn = "0929-5607",

publisher = "Springer Netherlands",

number = "3",

}

Mel’gunov, MS , Ayupov, AB, Krapivina, EA & Mel’gunova, EA 2019, 'Nitrogen adsorption at ca. 77.4 K on partially hydrated and anhydrous α-Al ₂ O ₃', Adsorption, том. 25, № 3, стр. 601-611. https://doi.org/10.1007/s10450-019-00055-z

Nitrogen adsorption at ca. 77.4 K on partially hydrated and anhydrous α-Al ₂ O ₃. / Mel’gunov, Maxim S.; Ayupov, Artem B.; Krapivina, Elena A.; Mel’gunova, Elena A.

В: Adsorption, Том 25, № 3, 04.2019, стр. 601-611.

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

TY - JOUR

T1 - Nitrogen adsorption at ca. 77.4 K on partially hydrated and anhydrous α-Al 2 O 3

AU - Mel’gunov, Maxim S.

AU - Ayupov, Artem B.

AU - Krapivina, Elena A.

AU - Mel’gunova, Elena A.

PY - 2019/4

Y1 - 2019/4

N2 - N 2 adsorption isotherms at ca. 77 K on macroporous α-Al 2 O 3 have been measured and analyzed in the frameworks of the classic thermodynamic approach, with independent experimental data obtained by means of SEM-EDX, XRD, TGA, helium pycnometry, and mercury porosimetry taken into account. It is shown, that presence of adsorbed water considerably influences N 2 adsorption, which gradually increases with temperature of the degas treatment. Simultaneously, the shape of the isotherms has a trend to change from Type II to Type VI, that assumes changing of adsorption mechanism from progressive increasing of the adsorbed layer thickness towards layer-by-layer adsorption. Corrected and smoothed isotherms are presented in the tabular form as reference for subsequent more comprehensive analysis using molecular statistical approaches.

AB - N 2 adsorption isotherms at ca. 77 K on macroporous α-Al 2 O 3 have been measured and analyzed in the frameworks of the classic thermodynamic approach, with independent experimental data obtained by means of SEM-EDX, XRD, TGA, helium pycnometry, and mercury porosimetry taken into account. It is shown, that presence of adsorbed water considerably influences N 2 adsorption, which gradually increases with temperature of the degas treatment. Simultaneously, the shape of the isotherms has a trend to change from Type II to Type VI, that assumes changing of adsorption mechanism from progressive increasing of the adsorbed layer thickness towards layer-by-layer adsorption. Corrected and smoothed isotherms are presented in the tabular form as reference for subsequent more comprehensive analysis using molecular statistical approaches.

KW - Alumina

KW - Corundum

KW - N

KW - Reference adsorption

KW - DISTRIBUTIONS

KW - N-2

KW - AREA

KW - PORE SYSTEMS

KW - SURFACE

KW - CATALYSTS

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U2 - 10.1007/s10450-019-00055-z

DO - 10.1007/s10450-019-00055-z

M3 - Article

AN - SCOPUS:85062968317

VL - 25

SP - 601

EP - 611

JO - Adsorption

JF - Adsorption

SN - 0929-5607

IS - 3

ER -

Mel’gunov MS , Ayupov AB, Krapivina EA, Mel’gunova EA. Nitrogen adsorption at ca. 77.4 K on partially hydrated and anhydrous α-Al ₂ O ₃. Adsorption. 2019 Апр.;25(3):601-611. https://doi.org/10.1007/s10450-019-00055-z