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Study on effect recyclability of ru/bentonite-tio2 catalysts in glycerol hydrogenolysis reaction using x-ray photoelectron spectroscopy (XPS)

Recyclability effect on catalytic performance of Ru supported on the mixture of bentonite-TiO2 for the hydrogenolysis of glycerol was investigated under reaction condition of 150°C, 2.0 MPa hydrogen pressure and 7 h reaction time. Interestingly, the recovered Ru/bentonite-TiO2 catalyst was found to...

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Main Authors: Hamzah, N., Nordin, N. M., Isahak, W. N. R. W., Kassim, M. B., Yarmo, M. A.
Format: Conference or Workshop Item
Published: 2013
Subjects:
TL Motor vehicles. Aeronautics. Astronautics
Online Access:http://eprints.utm.my/id/eprint/51328/
http://dx.doi.org/10.4028/www.scientific.net/AMR.620.289
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spelling my.utm.513282017-09-18T01:23:35Z http://eprints.utm.my/id/eprint/51328/ Study on effect recyclability of ru/bentonite-tio2 catalysts in glycerol hydrogenolysis reaction using x-ray photoelectron spectroscopy (XPS) Hamzah, N. Nordin, N. M. Isahak, W. N. R. W. Kassim, M. B. Yarmo, M. A. TL Motor vehicles. Aeronautics. Astronautics Recyclability effect on catalytic performance of Ru supported on the mixture of bentonite-TiO2 for the hydrogenolysis of glycerol was investigated under reaction condition of 150°C, 2.0 MPa hydrogen pressure and 7 h reaction time. Interestingly, the recovered Ru/bentonite-TiO2 catalyst was found to be active in the repeated runs. The conversion of glycerol increased in the four successive reactions as follows: 61.3%, 65.6%, 68.1% and 75.3%. This suggested that a sort of metal activation affect such as in situ reduction occurred during the repeated reaction. In order to confirm in situ reduction had occurred during the repeated reaction, XPS analysis of used catalyst after each reaction were carried out to study the chemical state of Ru 3d species. Narrow scan of peak Ru 3d revealed that intensity of Ru 3d5/2 peak at BE 280.0 eV which is corresponding to Ru0 species increased until three cycle reaction. This result confirmed that in situ reduction had occurred during the repeated reaction and this made the activities of the catalyst increased upon recycling due to the availability of more metallic Ru on the surface of the catalyst. This study also shows that conversion of glycerol increased linearly with the percentage atomic ratio of Ru metal active site available on the surface of catalyst. 2013 Conference or Workshop Item PeerReviewed Hamzah, N. and Nordin, N. M. and Isahak, W. N. R. W. and Kassim, M. B. and Yarmo, M. A. (2013) Study on effect recyclability of ru/bentonite-tio2 catalysts in glycerol hydrogenolysis reaction using x-ray photoelectron spectroscopy (XPS). In: Advanced Materials Research. http://dx.doi.org/10.4028/www.scientific.net/AMR.620.289
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TL Motor vehicles. Aeronautics. Astronautics
spellingShingle TL Motor vehicles. Aeronautics. Astronautics
Hamzah, N.
Nordin, N. M.
Isahak, W. N. R. W.
Kassim, M. B.
Yarmo, M. A.
Study on effect recyclability of ru/bentonite-tio2 catalysts in glycerol hydrogenolysis reaction using x-ray photoelectron spectroscopy (XPS)
description Recyclability effect on catalytic performance of Ru supported on the mixture of bentonite-TiO2 for the hydrogenolysis of glycerol was investigated under reaction condition of 150°C, 2.0 MPa hydrogen pressure and 7 h reaction time. Interestingly, the recovered Ru/bentonite-TiO2 catalyst was found to be active in the repeated runs. The conversion of glycerol increased in the four successive reactions as follows: 61.3%, 65.6%, 68.1% and 75.3%. This suggested that a sort of metal activation affect such as in situ reduction occurred during the repeated reaction. In order to confirm in situ reduction had occurred during the repeated reaction, XPS analysis of used catalyst after each reaction were carried out to study the chemical state of Ru 3d species. Narrow scan of peak Ru 3d revealed that intensity of Ru 3d5/2 peak at BE 280.0 eV which is corresponding to Ru0 species increased until three cycle reaction. This result confirmed that in situ reduction had occurred during the repeated reaction and this made the activities of the catalyst increased upon recycling due to the availability of more metallic Ru on the surface of the catalyst. This study also shows that conversion of glycerol increased linearly with the percentage atomic ratio of Ru metal active site available on the surface of catalyst.
format Conference or Workshop Item
author Hamzah, N.
Nordin, N. M.
Isahak, W. N. R. W.
Kassim, M. B.
Yarmo, M. A.
author_facet Hamzah, N.
Nordin, N. M.
Isahak, W. N. R. W.
Kassim, M. B.
Yarmo, M. A.
author_sort Hamzah, N.
title Study on effect recyclability of ru/bentonite-tio2 catalysts in glycerol hydrogenolysis reaction using x-ray photoelectron spectroscopy (XPS)
title_short Study on effect recyclability of ru/bentonite-tio2 catalysts in glycerol hydrogenolysis reaction using x-ray photoelectron spectroscopy (XPS)
title_full Study on effect recyclability of ru/bentonite-tio2 catalysts in glycerol hydrogenolysis reaction using x-ray photoelectron spectroscopy (XPS)
title_fullStr Study on effect recyclability of ru/bentonite-tio2 catalysts in glycerol hydrogenolysis reaction using x-ray photoelectron spectroscopy (XPS)
title_full_unstemmed Study on effect recyclability of ru/bentonite-tio2 catalysts in glycerol hydrogenolysis reaction using x-ray photoelectron spectroscopy (XPS)
title_sort study on effect recyclability of ru/bentonite-tio2 catalysts in glycerol hydrogenolysis reaction using x-ray photoelectron spectroscopy (xps)
publishDate 2013
url http://eprints.utm.my/id/eprint/51328/
http://dx.doi.org/10.4028/www.scientific.net/AMR.620.289
_version_ 1643653007280177152
score 13.211869

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