Molecular hydrogen-originated protonic acid site on Pt/WO3-ZrO2
Pt/WO3-ZrO2 catalyst exhibits high activity and selectivity in alkane skeletal isomerization which is important reaction for a gasoline of high quality. The catalytic activity and selectivity were enhanced in the presence of hydrogen. The roles of hydrogen present in the reaction mixture was studied...
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| Format: | Article |
| Language: | English |
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Kolej Universiti Sains dan Teknologi Malaysia (KUSTEM)
2004
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| Subjects: | |
| Online Access: | http://eprints.utm.my/4923/ http://eprints.utm.my/4923/1/SugengTriwahyono2004_MolecularHydrogenOriginatedProtonicAcid.pdf |
| _version_ | 1848890922557767680 |
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| author | Triwahyono, Sugeng Sarmidi, Mohamad Roji Abdul Aziz, Ramlan Hattori, H. Yamada, T. |
| author_facet | Triwahyono, Sugeng Sarmidi, Mohamad Roji Abdul Aziz, Ramlan Hattori, H. Yamada, T. |
| author_sort | Triwahyono, Sugeng |
| building | UTeM Institutional Repository |
| collection | Online Access |
| description | Pt/WO3-ZrO2 catalyst exhibits high activity and selectivity in alkane skeletal isomerization which is important reaction for a gasoline of high quality. The catalytic activity and selectivity were enhanced in the presence of hydrogen. The roles of hydrogen present in the reaction mixture was studied by kinetic analysis of hydrogen adsorption nad IR study of the acid sites. The active sites on Pt/WO3-ZrO2 are interpreted in terms of a concept of acid site generation "molecular hydrogen-originated protonic acid site". The catalytic features of Pt/WO3-ZrO2 in comparison to those of Pt/SO4-ZrO2 are high selectivity for isomerization against cracking. The features arise from a fast surface diffusion of spiltover hydrogen atoms which convert into protons nad hydrides at Lewis acid sites. A high availablity of protons and hydrides causes high activity and selectivity for alkane isomerization. |
| first_indexed | 2025-11-15T20:49:46Z |
| format | Article |
| id | utm-4923 |
| institution | Universiti Teknologi Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:49:46Z |
| publishDate | 2004 |
| publisher | Kolej Universiti Sains dan Teknologi Malaysia (KUSTEM) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utm-49232010-06-01T03:21:57Z http://eprints.utm.my/4923/ Molecular hydrogen-originated protonic acid site on Pt/WO3-ZrO2 Triwahyono, Sugeng Sarmidi, Mohamad Roji Abdul Aziz, Ramlan Hattori, H. Yamada, T. T Technology (General) Pt/WO3-ZrO2 catalyst exhibits high activity and selectivity in alkane skeletal isomerization which is important reaction for a gasoline of high quality. The catalytic activity and selectivity were enhanced in the presence of hydrogen. The roles of hydrogen present in the reaction mixture was studied by kinetic analysis of hydrogen adsorption nad IR study of the acid sites. The active sites on Pt/WO3-ZrO2 are interpreted in terms of a concept of acid site generation "molecular hydrogen-originated protonic acid site". The catalytic features of Pt/WO3-ZrO2 in comparison to those of Pt/SO4-ZrO2 are high selectivity for isomerization against cracking. The features arise from a fast surface diffusion of spiltover hydrogen atoms which convert into protons nad hydrides at Lewis acid sites. A high availablity of protons and hydrides causes high activity and selectivity for alkane isomerization. Kolej Universiti Sains dan Teknologi Malaysia (KUSTEM) 2004 Article PeerReviewed application/pdf en http://eprints.utm.my/4923/1/SugengTriwahyono2004_MolecularHydrogenOriginatedProtonicAcid.pdf Triwahyono, Sugeng and Sarmidi, Mohamad Roji and Abdul Aziz, Ramlan and Hattori, H. and Yamada, T. (2004) Molecular hydrogen-originated protonic acid site on Pt/WO3-ZrO2. KUSTEM Third Annual Seminar on Sustainbility Science and Management . pp. 53-56. |
| spellingShingle | T Technology (General) Triwahyono, Sugeng Sarmidi, Mohamad Roji Abdul Aziz, Ramlan Hattori, H. Yamada, T. Molecular hydrogen-originated protonic acid site on Pt/WO3-ZrO2 |
| title | Molecular hydrogen-originated protonic acid site on Pt/WO3-ZrO2 |
| title_full | Molecular hydrogen-originated protonic acid site on Pt/WO3-ZrO2 |
| title_fullStr | Molecular hydrogen-originated protonic acid site on Pt/WO3-ZrO2 |
| title_full_unstemmed | Molecular hydrogen-originated protonic acid site on Pt/WO3-ZrO2 |
| title_short | Molecular hydrogen-originated protonic acid site on Pt/WO3-ZrO2 |
| title_sort | molecular hydrogen-originated protonic acid site on pt/wo3-zro2 |
| topic | T Technology (General) |
| url | http://eprints.utm.my/4923/ http://eprints.utm.my/4923/1/SugengTriwahyono2004_MolecularHydrogenOriginatedProtonicAcid.pdf |