Synthesis and characterization of bubble wrap-like hollow barium silicate–carbonate nanospheres for the epoxidation of styrene
Novel porous bubble wrap-like hollow barium silicate–carbonate nanospheres were successfully prepared at a barium/CTAB molar ratio of 0.75 and 1.00. The average pore size, BET surface area and total pore volume of the most catalytically active catalyst in the epoxidation of styrene, 1.00BaMST were 5...
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| Format: | Article |
| Language: | English English English |
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Elsevier
2020
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| Online Access: | http://irep.iium.edu.my/82272/ http://irep.iium.edu.my/82272/1/IF%205.289%20ISI-Indexed%20Journal%20of%20materials%20research%20and%20technology.pdf http://irep.iium.edu.my/82272/7/82272_Synthesis%20and%20characterization%20of%20bubble%20wrap-like%20hollow_Scopus.pdf http://irep.iium.edu.my/82272/8/82272_Synthesis%20and%20characterization%20of%20bubble_wos.pdf |
| _version_ | 1848789269402877952 |
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| author | Tan, Kok Hou Iqbal, Anwar Adam, Farook Abu Bakar, N.H.H. M. Yusop, Rahimi Ahmad, Mohammad Norazmi |
| author_facet | Tan, Kok Hou Iqbal, Anwar Adam, Farook Abu Bakar, N.H.H. M. Yusop, Rahimi Ahmad, Mohammad Norazmi |
| author_sort | Tan, Kok Hou |
| building | IIUM Repository |
| collection | Online Access |
| description | Novel porous bubble wrap-like hollow barium silicate–carbonate nanospheres were successfully prepared at a barium/CTAB molar ratio of 0.75 and 1.00. The average pore size, BET surface area and total pore volume of the most catalytically active catalyst in the epoxidation of styrene, 1.00BaMST were 5.0 nm, 42 m2 g−1 and 0.0771 cm3 g−1, respectively. The styrene epoxidation reaction was carried out using H2O2 as an oxidant. Barium silicate and carbonate groups detected on the catalyst’s surface are proposed to activate the H2O2 and selectively oxidize the styrene to styrene oxide. The 1.00BaMST achieved 63.3% of styrene conversion and 77.8% of epoxide selectivity at mild conditions (3 h, 60 ◦C). The reaction energy barrier was calculated to be 17.3 kJ mol−1. |
| first_indexed | 2025-11-14T17:54:02Z |
| format | Article |
| id | iium-82272 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English English |
| last_indexed | 2025-11-14T17:54:02Z |
| publishDate | 2020 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-822722021-02-18T08:08:19Z http://irep.iium.edu.my/82272/ Synthesis and characterization of bubble wrap-like hollow barium silicate–carbonate nanospheres for the epoxidation of styrene Tan, Kok Hou Iqbal, Anwar Adam, Farook Abu Bakar, N.H.H. M. Yusop, Rahimi Ahmad, Mohammad Norazmi QD Chemistry Novel porous bubble wrap-like hollow barium silicate–carbonate nanospheres were successfully prepared at a barium/CTAB molar ratio of 0.75 and 1.00. The average pore size, BET surface area and total pore volume of the most catalytically active catalyst in the epoxidation of styrene, 1.00BaMST were 5.0 nm, 42 m2 g−1 and 0.0771 cm3 g−1, respectively. The styrene epoxidation reaction was carried out using H2O2 as an oxidant. Barium silicate and carbonate groups detected on the catalyst’s surface are proposed to activate the H2O2 and selectively oxidize the styrene to styrene oxide. The 1.00BaMST achieved 63.3% of styrene conversion and 77.8% of epoxide selectivity at mild conditions (3 h, 60 ◦C). The reaction energy barrier was calculated to be 17.3 kJ mol−1. Elsevier 2020-08-14 Article PeerReviewed application/pdf en http://irep.iium.edu.my/82272/1/IF%205.289%20ISI-Indexed%20Journal%20of%20materials%20research%20and%20technology.pdf application/pdf en http://irep.iium.edu.my/82272/7/82272_Synthesis%20and%20characterization%20of%20bubble%20wrap-like%20hollow_Scopus.pdf application/pdf en http://irep.iium.edu.my/82272/8/82272_Synthesis%20and%20characterization%20of%20bubble_wos.pdf Tan, Kok Hou and Iqbal, Anwar and Adam, Farook and Abu Bakar, N.H.H. and M. Yusop, Rahimi and Ahmad, Mohammad Norazmi (2020) Synthesis and characterization of bubble wrap-like hollow barium silicate–carbonate nanospheres for the epoxidation of styrene. Journal of Materials Research and Technology, 9 (5). pp. 11087-11098. ISSN 2238-7854 https://doi.org/10.1016/j.jmrt.2020.07.109 |
| spellingShingle | QD Chemistry Tan, Kok Hou Iqbal, Anwar Adam, Farook Abu Bakar, N.H.H. M. Yusop, Rahimi Ahmad, Mohammad Norazmi Synthesis and characterization of bubble wrap-like hollow barium silicate–carbonate nanospheres for the epoxidation of styrene |
| title | Synthesis and characterization of bubble wrap-like
hollow barium silicate–carbonate nanospheres for
the epoxidation of styrene |
| title_full | Synthesis and characterization of bubble wrap-like
hollow barium silicate–carbonate nanospheres for
the epoxidation of styrene |
| title_fullStr | Synthesis and characterization of bubble wrap-like
hollow barium silicate–carbonate nanospheres for
the epoxidation of styrene |
| title_full_unstemmed | Synthesis and characterization of bubble wrap-like
hollow barium silicate–carbonate nanospheres for
the epoxidation of styrene |
| title_short | Synthesis and characterization of bubble wrap-like
hollow barium silicate–carbonate nanospheres for
the epoxidation of styrene |
| title_sort | synthesis and characterization of bubble wrap-like
hollow barium silicate–carbonate nanospheres for
the epoxidation of styrene |
| topic | QD Chemistry |
| url | http://irep.iium.edu.my/82272/ http://irep.iium.edu.my/82272/ http://irep.iium.edu.my/82272/1/IF%205.289%20ISI-Indexed%20Journal%20of%20materials%20research%20and%20technology.pdf http://irep.iium.edu.my/82272/7/82272_Synthesis%20and%20characterization%20of%20bubble%20wrap-like%20hollow_Scopus.pdf http://irep.iium.edu.my/82272/8/82272_Synthesis%20and%20characterization%20of%20bubble_wos.pdf |