[V,Al]-MCM-22: A novel acid/redox bifunctional molecular sieve

A. Albuquerque; L. Marchese; L. Lisi; H. O. Pastore

doi:10.1016/j.jcat.2006.05.012

[V,Al]-MCM-22: A novel acid/redox bifunctional molecular sieve

A. Albuquerque
, L. Marchese
, L. Lisi
, H. O. Pastore

Dipartimento di Scienze e Innovazione Tecnologica

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

The synthesis and characterization of a novel vanadoaluminosilicate, [V,Al]-MCM-22, with MWW structure has been performed. As-synthesized, calcined, and H⁺ and Na⁺ ion-exchanged materials were characterized by various techniques, including X-ray diffraction (XRD), scanning electronic microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). The presence of redox sites (V⁴⁺/V⁵⁺ couples) after oxidation in O₂ at 580 °C and reduction in H₂ at 500 °C was monitored by diffuse reflectance (DR) UV-vis spectroscopy and by FTIR of CO adsorption at 100 K. Preliminary catalytic tests on the oxidative dehydrogenation (ODH) of propane provided promising results.

Lingua originale	Inglese
pagine (da-a)	367-377
Numero di pagine	11
Rivista	Journal of Catalysis
Volume	241
Numero di pubblicazione	2
DOI	https://doi.org/10.1016/j.jcat.2006.05.012
Stato di pubblicazione	Pubblicato - 25 lug 2006

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10.1016/j.jcat.2006.05.012

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title = "[V,Al]-MCM-22: A novel acid/redox bifunctional molecular sieve",

abstract = "The synthesis and characterization of a novel vanadoaluminosilicate, [V,Al]-MCM-22, with MWW structure has been performed. As-synthesized, calcined, and H+ and Na+ ion-exchanged materials were characterized by various techniques, including X-ray diffraction (XRD), scanning electronic microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). The presence of redox sites (V4+/V5+ couples) after oxidation in O2 at 580 °C and reduction in H2 at 500 °C was monitored by diffuse reflectance (DR) UV-vis spectroscopy and by FTIR of CO adsorption at 100 K. Preliminary catalytic tests on the oxidative dehydrogenation (ODH) of propane provided promising results.",

keywords = "ODH reaction, Vanadoaluminosilicates, [V,Al]-MCM-22",

author = "A. Albuquerque and L. Marchese and L. Lisi and Pastore, \{H. O.\}",

note = "Funding Information: The authors acknowledge support from the Brazilian Funda{\c c}{\~a}o de Amparo {\`a} Pesquisa no Estado de S{\~a}o Paulo (FAPESP) and the Italian Ministero dell'Istruzione, dell'Universit{\`a} e della Ricerca (project FIRB2001). A.A. also acknowledges FAPESP and the Coordena{\c c}{\~a}o de Aperfei{\c c}oamento de Pessoal de Nivel Superior for fellowships. The authors thank Prof. Ana Maria Ferreira (IQ-USP, Brazil), Prof. Jos{\'e} Salvador Barone (IQ-Unicamp, Brazil), Dr. {\'E}rico Teixeira Neto (Oxiteno, Brazil), and Dr. Chiara Bisio for help with EPR, elemental analysis, SEM, and DR–UV–vis, respectively.",

year = "2006",

month = jul,

day = "25",

doi = "10.1016/j.jcat.2006.05.012",

language = "English",

volume = "241",

pages = "367--377",

journal = "Journal of Catalysis",

issn = "0021-9517",

publisher = "Academic Press Inc.",

number = "2",

}

TY - JOUR

T1 - [V,Al]-MCM-22

T2 - A novel acid/redox bifunctional molecular sieve

AU - Albuquerque, A.

AU - Marchese, L.

AU - Lisi, L.

AU - Pastore, H. O.

N1 - Funding Information: The authors acknowledge support from the Brazilian Fundação de Amparo à Pesquisa no Estado de São Paulo (FAPESP) and the Italian Ministero dell'Istruzione, dell'Università e della Ricerca (project FIRB2001). A.A. also acknowledges FAPESP and the Coordenação de Aperfeiçoamento de Pessoal de Nivel Superior for fellowships. The authors thank Prof. Ana Maria Ferreira (IQ-USP, Brazil), Prof. José Salvador Barone (IQ-Unicamp, Brazil), Dr. Érico Teixeira Neto (Oxiteno, Brazil), and Dr. Chiara Bisio for help with EPR, elemental analysis, SEM, and DR–UV–vis, respectively.

PY - 2006/7/25

Y1 - 2006/7/25

N2 - The synthesis and characterization of a novel vanadoaluminosilicate, [V,Al]-MCM-22, with MWW structure has been performed. As-synthesized, calcined, and H+ and Na+ ion-exchanged materials were characterized by various techniques, including X-ray diffraction (XRD), scanning electronic microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). The presence of redox sites (V4+/V5+ couples) after oxidation in O2 at 580 °C and reduction in H2 at 500 °C was monitored by diffuse reflectance (DR) UV-vis spectroscopy and by FTIR of CO adsorption at 100 K. Preliminary catalytic tests on the oxidative dehydrogenation (ODH) of propane provided promising results.

AB - The synthesis and characterization of a novel vanadoaluminosilicate, [V,Al]-MCM-22, with MWW structure has been performed. As-synthesized, calcined, and H+ and Na+ ion-exchanged materials were characterized by various techniques, including X-ray diffraction (XRD), scanning electronic microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). The presence of redox sites (V4+/V5+ couples) after oxidation in O2 at 580 °C and reduction in H2 at 500 °C was monitored by diffuse reflectance (DR) UV-vis spectroscopy and by FTIR of CO adsorption at 100 K. Preliminary catalytic tests on the oxidative dehydrogenation (ODH) of propane provided promising results.

KW - ODH reaction

KW - Vanadoaluminosilicates

KW - [V,Al]-MCM-22

UR - https://www.scopus.com/pages/publications/33745650681

U2 - 10.1016/j.jcat.2006.05.012

DO - 10.1016/j.jcat.2006.05.012

M3 - Article

SN - 0021-9517

VL - 241

SP - 367

EP - 377

JO - Journal of Catalysis

JF - Journal of Catalysis

IS - 2

ER -

[V,Al]-MCM-22: A novel acid/redox bifunctional molecular sieve

Abstract

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