Hydrogen adsorption in the Ti-doped mesoporous silicate SBA-15

A. I. Acatrinei; M. A. Hartl; Juergen Eckert; Eduardo H.L. Falcao; G. Chertkov; L. L. Daemen

doi:10.1021/jp8110875

Hydrogen adsorption in the Ti-doped mesoporous silicate SBA-15

A. I. Acatrinei, M. A. Hartl, Juergen Eckert, Eduardo H.L. Falcao, G. Chertkov, L. L. Daemen

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27 Scopus citations

Abstract

While metal-doped mesoporous silicate SBA-15 has been studied extensively for its catalytic properties, the adsorption of molecular hydrogen in this system has not been considered. We report herein that the titaniumdoped material (10% Ti) adsorbs nearly twice the amount of hydrogen at 77 K and a pressure of 25 bar than pure SBA-15, Hydrogen adsorption isotherms also show that binding energies in the Ti-doped material are more than 50% greater than in SBA-15. Neutron vibrational spectroscopy shows clear evidence for interaction of hydrogen with Ti, which is responsible for part of the increase in hydrogen sorption in the material.

Original language	English
Pages (from-to)	15634-15638
Number of pages	5
Journal	Journal of Physical Chemistry C
Volume	113
Issue number	35
DOIs	https://doi.org/10.1021/jp8110875
State	Published - Sep 3 2009
Externally published	Yes

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title = "Hydrogen adsorption in the Ti-doped mesoporous silicate SBA-15",

abstract = "While metal-doped mesoporous silicate SBA-15 has been studied extensively for its catalytic properties, the adsorption of molecular hydrogen in this system has not been considered. We report herein that the titaniumdoped material (10% Ti) adsorbs nearly twice the amount of hydrogen at 77 K and a pressure of 25 bar than pure SBA-15, Hydrogen adsorption isotherms also show that binding energies in the Ti-doped material are more than 50% greater than in SBA-15. Neutron vibrational spectroscopy shows clear evidence for interaction of hydrogen with Ti, which is responsible for part of the increase in hydrogen sorption in the material.",

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T1 - Hydrogen adsorption in the Ti-doped mesoporous silicate SBA-15

AU - Acatrinei, A. I.

AU - Hartl, M. A.

AU - Eckert, Juergen

AU - Falcao, Eduardo H.L.

AU - Chertkov, G.

AU - Daemen, L. L.

PY - 2009/9/3

Y1 - 2009/9/3

N2 - While metal-doped mesoporous silicate SBA-15 has been studied extensively for its catalytic properties, the adsorption of molecular hydrogen in this system has not been considered. We report herein that the titaniumdoped material (10% Ti) adsorbs nearly twice the amount of hydrogen at 77 K and a pressure of 25 bar than pure SBA-15, Hydrogen adsorption isotherms also show that binding energies in the Ti-doped material are more than 50% greater than in SBA-15. Neutron vibrational spectroscopy shows clear evidence for interaction of hydrogen with Ti, which is responsible for part of the increase in hydrogen sorption in the material.

AB - While metal-doped mesoporous silicate SBA-15 has been studied extensively for its catalytic properties, the adsorption of molecular hydrogen in this system has not been considered. We report herein that the titaniumdoped material (10% Ti) adsorbs nearly twice the amount of hydrogen at 77 K and a pressure of 25 bar than pure SBA-15, Hydrogen adsorption isotherms also show that binding energies in the Ti-doped material are more than 50% greater than in SBA-15. Neutron vibrational spectroscopy shows clear evidence for interaction of hydrogen with Ti, which is responsible for part of the increase in hydrogen sorption in the material.

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DO - 10.1021/jp8110875

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SP - 15634

EP - 15638

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 35

ER -

Hydrogen adsorption in the Ti-doped mesoporous silicate SBA-15

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