The effect of support morphology on the activity of HZSM-5-supported molybdenum catalysts for the aromatization of methane

Alper Sarioǧlan; Ömer Tunç Savaşçi; Ayşe Erdem-Şenatalar; Alain Tuel; Gilbert Sapaly; Younès Ben Taârit

doi:10.1016/j.jcat.2006.10.005

The effect of support morphology on the activity of HZSM-5-supported molybdenum catalysts for the aromatization of methane

Alper Sarioǧlan
, Ömer Tunç Savaşçi
, Ayşe Erdem-Şenatalar^*
, Alain Tuel
, Gilbert Sapaly
, Younès Ben Taârit

^*Bu çalışma için yazışmadan sorumlu yazar

C.N.R.S.
Scientific and Technological Research Council of Turkey
Istanbul Technical University

Araştırma çıktısı: Dergi yayını › Makale › Hakem

29 Atıf (Scopus)

Özet

The aromatization of methane was investigated over Mo₂C supported on several HZSM-5 zeolites with different morphologies and Si/Al ratios. X-ray diffraction, elemental analyses, X-ray photoelectron spectroscopy, ²⁷Al NMR spectroscopy, nitrogen adsorption, and scanning electron microscopy were used to characterize the supports. Support morphology was observed to play a crucial role in this reaction, which was studied under conditions in which actual rates could be compared. Although rates did not vary linearly either with the total number of the acid sites or with the external surface area, turnover frequencies of the surface acid sites, calculated using the Si/Al ratios determined from XPS measurements, were observed to vary linearly with the external surface area.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	35-39
Sayfa sayısı	5
Dergi	Journal of Catalysis
Hacim	246
Basın numarası	1
DOI'lar	https://doi.org/10.1016/j.jcat.2006.10.005
Yayın durumu	Yayınlandı - 15 Şub 2007
Harici olarak yayınlandı	Evet

Finansman

A.S. acknowledges the funding provided by TUBITAK MRC via the World Bank Program, which covered all his expenses during his stay at Institut de Recherches sur la Catalyse, France.

Finansörler
Institut de Recherches sur la Catalyse
TUBITAK MRC
World Bank Group

Belgeye Erişim

10.1016/j.jcat.2006.10.005

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "The effect of support morphology on the activity of HZSM-5-supported molybdenum catalysts for the aromatization of methane",

abstract = "The aromatization of methane was investigated over Mo2C supported on several HZSM-5 zeolites with different morphologies and Si/Al ratios. X-ray diffraction, elemental analyses, X-ray photoelectron spectroscopy, 27Al NMR spectroscopy, nitrogen adsorption, and scanning electron microscopy were used to characterize the supports. Support morphology was observed to play a crucial role in this reaction, which was studied under conditions in which actual rates could be compared. Although rates did not vary linearly either with the total number of the acid sites or with the external surface area, turnover frequencies of the surface acid sites, calculated using the Si/Al ratios determined from XPS measurements, were observed to vary linearly with the external surface area.",

keywords = "Aromatization, External surface, Methane, Molybdenum, Morphology, Si/Al ratio",

author = "Alper Sarioǧlan and Sava{\c s}{\c c}i, \{{\"O}mer Tun{\c c}\} and Ay{\c s}e Erdem-{\c S}enatalar and Alain Tuel and Gilbert Sapaly and \{Ben Ta{\^a}rit\}, Youn{\`e}s",

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T1 - The effect of support morphology on the activity of HZSM-5-supported molybdenum catalysts for the aromatization of methane

AU - Sarioǧlan, Alper

AU - Savaşçi, Ömer Tunç

AU - Erdem-Şenatalar, Ayşe

AU - Tuel, Alain

AU - Sapaly, Gilbert

AU - Ben Taârit, Younès

PY - 2007/2/15

Y1 - 2007/2/15

N2 - The aromatization of methane was investigated over Mo2C supported on several HZSM-5 zeolites with different morphologies and Si/Al ratios. X-ray diffraction, elemental analyses, X-ray photoelectron spectroscopy, 27Al NMR spectroscopy, nitrogen adsorption, and scanning electron microscopy were used to characterize the supports. Support morphology was observed to play a crucial role in this reaction, which was studied under conditions in which actual rates could be compared. Although rates did not vary linearly either with the total number of the acid sites or with the external surface area, turnover frequencies of the surface acid sites, calculated using the Si/Al ratios determined from XPS measurements, were observed to vary linearly with the external surface area.

AB - The aromatization of methane was investigated over Mo2C supported on several HZSM-5 zeolites with different morphologies and Si/Al ratios. X-ray diffraction, elemental analyses, X-ray photoelectron spectroscopy, 27Al NMR spectroscopy, nitrogen adsorption, and scanning electron microscopy were used to characterize the supports. Support morphology was observed to play a crucial role in this reaction, which was studied under conditions in which actual rates could be compared. Although rates did not vary linearly either with the total number of the acid sites or with the external surface area, turnover frequencies of the surface acid sites, calculated using the Si/Al ratios determined from XPS measurements, were observed to vary linearly with the external surface area.

KW - Aromatization

KW - External surface

KW - Methane

KW - Molybdenum

KW - Morphology

KW - Si/Al ratio

UR - https://www.scopus.com/pages/publications/33846223776

U2 - 10.1016/j.jcat.2006.10.005

DO - 10.1016/j.jcat.2006.10.005

M3 - Article

AN - SCOPUS:33846223776

SN - 0021-9517

VL - 246

SP - 35

EP - 39

JO - Journal of Catalysis

JF - Journal of Catalysis

IS - 1

ER -

The effect of support morphology on the activity of HZSM-5-supported molybdenum catalysts for the aromatization of methane

Özet

Finansman

Belgeye Erişim

Diğer Dosyalar ve Linkler

Parmak izi

Alıntı Yap