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Surface structure of alkysilylated hzsm-5 as phase-boundary catalyst

The need for cleaner environment concerns motivates the development of more e�cient catalytic system. Based on this consideration, recently a novel catalyst named "Phase-boundary catalyst", a bimodal amphiphilic solid catalyst, was proposed. It was demonstrated that the catalytic system co...

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Main Authors: Nur, Hadi, Ng, Hau Yun, Mohd. Muhid, Mohd. Nazlan, Hamdan, Halimaton
Format: Article
Language:English
Published: Indonesian Physical Society 2004
Subjects:
QC Physics
QD Chemistry
Online Access:http://eprints.utm.my/id/eprint/28189/1/HadiNur2004_SurfaceStructureOfAlkylsilylatedHzsm5.pdf
http://eprints.utm.my/id/eprint/28189/
http://www.hadinur.com/paper/hadi_jphysips2004.pdf
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spelling my.utm.281892017-10-17T04:02:45Z http://eprints.utm.my/id/eprint/28189/ Surface structure of alkysilylated hzsm-5 as phase-boundary catalyst Nur, Hadi Ng, Hau Yun Mohd. Muhid, Mohd. Nazlan Hamdan, Halimaton QC Physics QD Chemistry The need for cleaner environment concerns motivates the development of more e�cient catalytic system. Based on this consideration, recently a novel catalyst named "Phase-boundary catalyst", a bimodal amphiphilic solid catalyst, was proposed. It was demonstrated that the catalytic system containing phase-boundary catalyst required neither stirring to make an emulsion nor addition of a co-solvent to make a homogeneous solution to drive the reaction. The driving force that has prompted this paper is to investigate the surface structure of alkylsilylated HZSM-5 as phase-boundary catalyst. Temperature Programmed Desorption (TPD) of ammonia and, 13C and 29Si MAS NMR spectroscopy were used to elucidate the surface structure of alkylsilylated HZSM-5. It is suggested the addition of small amount of water to the solid particles before alkylsilylation, as a recipe to make a bimodal amphiphilic particles, is desired to enhance the acidity of HZSM-5. The enhancement of acidity might be induced by polymeric octadecylsiloxane as elucidated by 13C and 29Si MAS NMR spectroscopy. Indonesian Physical Society 2004 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/28189/1/HadiNur2004_SurfaceStructureOfAlkylsilylatedHzsm5.pdf Nur, Hadi and Ng, Hau Yun and Mohd. Muhid, Mohd. Nazlan and Hamdan, Halimaton (2004) Surface structure of alkysilylated hzsm-5 as phase-boundary catalyst. Physics Journal of The Indonesian Physical Society, A7 (218). pp. 1-5. ISSN 1410-8860 http://www.hadinur.com/paper/hadi_jphysips2004.pdf
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/
language English
topic QC Physics
QD Chemistry
spellingShingle QC Physics
QD Chemistry
Nur, Hadi
Ng, Hau Yun
Mohd. Muhid, Mohd. Nazlan
Hamdan, Halimaton
Surface structure of alkysilylated hzsm-5 as phase-boundary catalyst
description The need for cleaner environment concerns motivates the development of more e�cient catalytic system. Based on this consideration, recently a novel catalyst named "Phase-boundary catalyst", a bimodal amphiphilic solid catalyst, was proposed. It was demonstrated that the catalytic system containing phase-boundary catalyst required neither stirring to make an emulsion nor addition of a co-solvent to make a homogeneous solution to drive the reaction. The driving force that has prompted this paper is to investigate the surface structure of alkylsilylated HZSM-5 as phase-boundary catalyst. Temperature Programmed Desorption (TPD) of ammonia and, 13C and 29Si MAS NMR spectroscopy were used to elucidate the surface structure of alkylsilylated HZSM-5. It is suggested the addition of small amount of water to the solid particles before alkylsilylation, as a recipe to make a bimodal amphiphilic particles, is desired to enhance the acidity of HZSM-5. The enhancement of acidity might be induced by polymeric octadecylsiloxane as elucidated by 13C and 29Si MAS NMR spectroscopy.
format Article
author Nur, Hadi
Ng, Hau Yun
Mohd. Muhid, Mohd. Nazlan
Hamdan, Halimaton
author_facet Nur, Hadi
Ng, Hau Yun
Mohd. Muhid, Mohd. Nazlan
Hamdan, Halimaton
author_sort Nur, Hadi
title Surface structure of alkysilylated hzsm-5 as phase-boundary catalyst
title_short Surface structure of alkysilylated hzsm-5 as phase-boundary catalyst
title_full Surface structure of alkysilylated hzsm-5 as phase-boundary catalyst
title_fullStr Surface structure of alkysilylated hzsm-5 as phase-boundary catalyst
title_full_unstemmed Surface structure of alkysilylated hzsm-5 as phase-boundary catalyst
title_sort surface structure of alkysilylated hzsm-5 as phase-boundary catalyst
publisher Indonesian Physical Society
publishDate 2004
url http://eprints.utm.my/id/eprint/28189/1/HadiNur2004_SurfaceStructureOfAlkylsilylatedHzsm5.pdf
http://eprints.utm.my/id/eprint/28189/
http://www.hadinur.com/paper/hadi_jphysips2004.pdf
_version_ 1643648003553099776
score 13.211869

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