Effect of crystallinity of zeolite beta on physicochemical properties and performance of cobalt catalysts
In the present work, the effect of crystallinity of zeolite beta in a sodium form (NaBEA) on physicochemical properties and performance of NaBEA-supported cobalt catalysts was investigated. The incipient wetness impregnation method was utilized in the synthesis of NaBEA-supported cobalt catalysts wi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Penerbit Universiti Kebangsaan Malaysia
2020
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| Online Access: | http://journalarticle.ukm.my/14733/ http://journalarticle.ukm.my/14733/1/ARTIKEL%209.pdf |
| _version_ | 1848813629398319104 |
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| author | Piaw Phatai, Sirinuch Loiha, Sanchai Prayoonpokarach, Jatuporn Wittayakun, |
| author_facet | Piaw Phatai, Sirinuch Loiha, Sanchai Prayoonpokarach, Jatuporn Wittayakun, |
| author_sort | Piaw Phatai, |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | In the present work, the effect of crystallinity of zeolite beta in a sodium form (NaBEA) on physicochemical properties and performance of NaBEA-supported cobalt catalysts was investigated. The incipient wetness impregnation method was utilized in the synthesis of NaBEA-supported cobalt catalysts with various Co loadings (4, 7 and 10 wt. %). NaBEA materials with high and low crystallinities (NaBEA-H and NaBEA-L) were synthesized using fumed silica with aging times of 72 and 48 h, respectively. In comparison to NaBEA-L, higher XRD peak intensities and surface area were observed for NaBEA-H. After impregnation, NaBEA-L displayed better dispersion of Co species and lower reducibility than NaBEA-H due to stronger metal-support interaction. Catalytic performance for n-butane hydrogenolysis via Co/NaBEA-H and Co/NaBEA-L catalysts was compared. In butane hydrogenolysis, the higher conversion was attained using Co/NaBEA-H with 7 and 10 wt. % when compared to Co/NaBEA-L with similar loadings. Multiple hydrogenolysis occurred on all catalysts producing methane as the only product. The most effective catalyst was determined to be 7Co/NaBEA-H due to the higher surface area and uniform particles of the cobalt species. |
| first_indexed | 2025-11-15T00:21:14Z |
| format | Article |
| id | oai:generic.eprints.org:14733 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T00:21:14Z |
| publishDate | 2020 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org:147332020-06-17T07:48:37Z http://journalarticle.ukm.my/14733/ Effect of crystallinity of zeolite beta on physicochemical properties and performance of cobalt catalysts Piaw Phatai, Sirinuch Loiha, Sanchai Prayoonpokarach, Jatuporn Wittayakun, In the present work, the effect of crystallinity of zeolite beta in a sodium form (NaBEA) on physicochemical properties and performance of NaBEA-supported cobalt catalysts was investigated. The incipient wetness impregnation method was utilized in the synthesis of NaBEA-supported cobalt catalysts with various Co loadings (4, 7 and 10 wt. %). NaBEA materials with high and low crystallinities (NaBEA-H and NaBEA-L) were synthesized using fumed silica with aging times of 72 and 48 h, respectively. In comparison to NaBEA-L, higher XRD peak intensities and surface area were observed for NaBEA-H. After impregnation, NaBEA-L displayed better dispersion of Co species and lower reducibility than NaBEA-H due to stronger metal-support interaction. Catalytic performance for n-butane hydrogenolysis via Co/NaBEA-H and Co/NaBEA-L catalysts was compared. In butane hydrogenolysis, the higher conversion was attained using Co/NaBEA-H with 7 and 10 wt. % when compared to Co/NaBEA-L with similar loadings. Multiple hydrogenolysis occurred on all catalysts producing methane as the only product. The most effective catalyst was determined to be 7Co/NaBEA-H due to the higher surface area and uniform particles of the cobalt species. Penerbit Universiti Kebangsaan Malaysia 2020-01 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/14733/1/ARTIKEL%209.pdf Piaw Phatai, and Sirinuch Loiha, and Sanchai Prayoonpokarach, and Jatuporn Wittayakun, (2020) Effect of crystallinity of zeolite beta on physicochemical properties and performance of cobalt catalysts. Sains Malaysiana, 49 (1). pp. 75-84. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid49bil1_2020/KandunganJilid49Bil1_2020.html |
| spellingShingle | Piaw Phatai, Sirinuch Loiha, Sanchai Prayoonpokarach, Jatuporn Wittayakun, Effect of crystallinity of zeolite beta on physicochemical properties and performance of cobalt catalysts |
| title | Effect of crystallinity of zeolite beta on physicochemical properties and performance of cobalt catalysts |
| title_full | Effect of crystallinity of zeolite beta on physicochemical properties and performance of cobalt catalysts |
| title_fullStr | Effect of crystallinity of zeolite beta on physicochemical properties and performance of cobalt catalysts |
| title_full_unstemmed | Effect of crystallinity of zeolite beta on physicochemical properties and performance of cobalt catalysts |
| title_short | Effect of crystallinity of zeolite beta on physicochemical properties and performance of cobalt catalysts |
| title_sort | effect of crystallinity of zeolite beta on physicochemical properties and performance of cobalt catalysts |
| url | http://journalarticle.ukm.my/14733/ http://journalarticle.ukm.my/14733/ http://journalarticle.ukm.my/14733/1/ARTIKEL%209.pdf |