A Supported Nickel Phthalocyanine Complex as a Selective Catalyst for the Production of Styrene
A nickel phthalocyanine complex (NiPc) supported on bentonite clay (Bihar, India) was used as a selective catalyst for the dehydrogenation of ethylbenzene to styrene. Maximum activity was observed for the catalyst sample containing 1.0 wt% NiPc/bentonite. A higher loading of complex (> 1.4 wt%) e...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2002-04-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/026361702760254450 |
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| author | Salah A. Hassan Afaf A. Zahran Fatma Z. Yehia |
| author_facet | Salah A. Hassan Afaf A. Zahran Fatma Z. Yehia |
| author_sort | Salah A. Hassan |
| collection | DOAJ |
| description | A nickel phthalocyanine complex (NiPc) supported on bentonite clay (Bihar, India) was used as a selective catalyst for the dehydrogenation of ethylbenzene to styrene. Maximum activity was observed for the catalyst sample containing 1.0 wt% NiPc/bentonite. A higher loading of complex (> 1.4 wt%) exhibited no activity and resembled polycrystalline NiPc. The texture of the studied catalyst and the mode of surface dispersion of the supported NiPc were investigated through the adsorption of N 2 and O 2 , respectively. The activity of the diluted samples could be attributed to the presence of separate highly dispersed molecules of NiPc on the bentonite surface without having a marked effect on its pore system for most active samples. The selectivity towards styrene was found to depend strongly on the NiPc surface area and the degree of dispersion. The activity was a function of the whole structure including modifications of both acid sites through different interactions and of the pore system through a penetration mechanism. |
| format | Article |
| id | doaj-art-dc7bb64daf0d486c99c49893bef8ed5c |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2002-04-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-dc7bb64daf0d486c99c49893bef8ed5c2025-01-03T01:22:47ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382002-04-012010.1260/026361702760254450A Supported Nickel Phthalocyanine Complex as a Selective Catalyst for the Production of StyreneSalah A. Hassan0Afaf A. Zahran1Fatma Z. Yehia2 Department of Chemistry, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt Department of Chemistry, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt Department of Petrochemicals, Institute of Petroleum Researches, Nasr City, Cairo, EgyptA nickel phthalocyanine complex (NiPc) supported on bentonite clay (Bihar, India) was used as a selective catalyst for the dehydrogenation of ethylbenzene to styrene. Maximum activity was observed for the catalyst sample containing 1.0 wt% NiPc/bentonite. A higher loading of complex (> 1.4 wt%) exhibited no activity and resembled polycrystalline NiPc. The texture of the studied catalyst and the mode of surface dispersion of the supported NiPc were investigated through the adsorption of N 2 and O 2 , respectively. The activity of the diluted samples could be attributed to the presence of separate highly dispersed molecules of NiPc on the bentonite surface without having a marked effect on its pore system for most active samples. The selectivity towards styrene was found to depend strongly on the NiPc surface area and the degree of dispersion. The activity was a function of the whole structure including modifications of both acid sites through different interactions and of the pore system through a penetration mechanism.https://doi.org/10.1260/026361702760254450 |
| spellingShingle | Salah A. Hassan Afaf A. Zahran Fatma Z. Yehia A Supported Nickel Phthalocyanine Complex as a Selective Catalyst for the Production of Styrene Adsorption Science & Technology |
| title | A Supported Nickel Phthalocyanine Complex as a Selective Catalyst for the Production of Styrene |
| title_full | A Supported Nickel Phthalocyanine Complex as a Selective Catalyst for the Production of Styrene |
| title_fullStr | A Supported Nickel Phthalocyanine Complex as a Selective Catalyst for the Production of Styrene |
| title_full_unstemmed | A Supported Nickel Phthalocyanine Complex as a Selective Catalyst for the Production of Styrene |
| title_short | A Supported Nickel Phthalocyanine Complex as a Selective Catalyst for the Production of Styrene |
| title_sort | supported nickel phthalocyanine complex as a selective catalyst for the production of styrene |
| url | https://doi.org/10.1260/026361702760254450 |
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