Effect Of Loaded Alkali Metals On The Structural, Basicity And Catalytic Activity Of Zeolite Beta
Zeolite Beta Was Modified By Incorporation Of An Alkali Metal (Na, K, Cs) Through Wet Impregnation Method. The Incorporation Of The Base Guests Has Reduced The Crystallinity And BET Surface Area Of Zeolite Beta, As Evidence By XRD, IR And Nitrogen Adsorption Characterizations. The Framework Structur...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Penerbit UTM Press
2005
|
| Subjects: | |
| Online Access: | http://eprints.utm.my/1797/ http://eprints.utm.my/1797/1/JTJUN42C5.pdf |
| _version_ | 1848890214190153728 |
|---|---|
| author | Wong, Kah Man Ramli, Zainab Nur, Hadi |
| author_facet | Wong, Kah Man Ramli, Zainab Nur, Hadi |
| author_sort | Wong, Kah Man |
| building | UTeM Institutional Repository |
| collection | Online Access |
| description | Zeolite Beta Was Modified By Incorporation Of An Alkali Metal (Na, K, Cs) Through Wet Impregnation Method. The Incorporation Of The Base Guests Has Reduced The Crystallinity And BET Surface Area Of Zeolite Beta, As Evidence By XRD, IR And Nitrogen Adsorption Characterizations. The Framework Structure Was Totally Collapsed At > 8%W/W Loading Of Na And K. Nevertheless, The Concentration Of Base Sites (Basicity) Was Enhanced As Evidence By The Increase In The Amount Of Desorbed CO2 In TPD-CO2 As The Amount Of Metal Loading Increases. The Catalytic Activity Of The Modified Samples Was Tested In Dehydration-Dehydrogenation Of Cyclohexanol. Selectivity Of Cyclohexanone That Is Produced On Base Sites Of Zeolite Beta Increased With The Increase In The Basicity, Consequently Suppressed The Selectivity Of Cyclohexene Produced At Acidic Sites. Cyclohexene Was Obtained As The Dominant Product Due To The Dominant Acidic Properties Of Zeolite Beta. The Ratio Of Cyclohexene To Cyclohexanone Varies With The Increase In The Metal Loading. |
| first_indexed | 2025-11-15T20:38:31Z |
| format | Article |
| id | utm-1797 |
| institution | Universiti Teknologi Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:38:31Z |
| publishDate | 2005 |
| publisher | Penerbit UTM Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utm-17972017-11-01T04:17:35Z http://eprints.utm.my/1797/ Effect Of Loaded Alkali Metals On The Structural, Basicity And Catalytic Activity Of Zeolite Beta Wong, Kah Man Ramli, Zainab Nur, Hadi Q Science (General) Zeolite Beta Was Modified By Incorporation Of An Alkali Metal (Na, K, Cs) Through Wet Impregnation Method. The Incorporation Of The Base Guests Has Reduced The Crystallinity And BET Surface Area Of Zeolite Beta, As Evidence By XRD, IR And Nitrogen Adsorption Characterizations. The Framework Structure Was Totally Collapsed At > 8%W/W Loading Of Na And K. Nevertheless, The Concentration Of Base Sites (Basicity) Was Enhanced As Evidence By The Increase In The Amount Of Desorbed CO2 In TPD-CO2 As The Amount Of Metal Loading Increases. The Catalytic Activity Of The Modified Samples Was Tested In Dehydration-Dehydrogenation Of Cyclohexanol. Selectivity Of Cyclohexanone That Is Produced On Base Sites Of Zeolite Beta Increased With The Increase In The Basicity, Consequently Suppressed The Selectivity Of Cyclohexene Produced At Acidic Sites. Cyclohexene Was Obtained As The Dominant Product Due To The Dominant Acidic Properties Of Zeolite Beta. The Ratio Of Cyclohexene To Cyclohexanone Varies With The Increase In The Metal Loading. Penerbit UTM Press 2005-06 Article PeerReviewed application/pdf en http://eprints.utm.my/1797/1/JTJUN42C5.pdf Wong, Kah Man and Ramli, Zainab and Nur, Hadi (2005) Effect Of Loaded Alkali Metals On The Structural, Basicity And Catalytic Activity Of Zeolite Beta. Jurnal Teknologi C (42C). pp. 43-55. ISSN 0127-9696 http://www.penerbit.utm.my/onlinejournal/42/C/JTJUN42C5.pdf |
| spellingShingle | Q Science (General) Wong, Kah Man Ramli, Zainab Nur, Hadi Effect Of Loaded Alkali Metals On The Structural, Basicity And Catalytic Activity Of Zeolite Beta |
| title | Effect Of Loaded Alkali Metals On The Structural, Basicity And Catalytic Activity Of Zeolite Beta |
| title_full | Effect Of Loaded Alkali Metals On The Structural, Basicity And Catalytic Activity Of Zeolite Beta |
| title_fullStr | Effect Of Loaded Alkali Metals On The Structural, Basicity And Catalytic Activity Of Zeolite Beta |
| title_full_unstemmed | Effect Of Loaded Alkali Metals On The Structural, Basicity And Catalytic Activity Of Zeolite Beta |
| title_short | Effect Of Loaded Alkali Metals On The Structural, Basicity And Catalytic Activity Of Zeolite Beta |
| title_sort | effect of loaded alkali metals on the structural, basicity and catalytic activity of zeolite beta |
| topic | Q Science (General) |
| url | http://eprints.utm.my/1797/ http://eprints.utm.my/1797/ http://eprints.utm.my/1797/1/JTJUN42C5.pdf |