SAPO-35 zeolite crystallized using novel structure-directing agent for catalytic conversion of levulinic acid into ethyl levulinate under non-microwave instant heating
SAPO-35 zeolite (LEV topology) is an 8-membered ring zeolite material that offers high selectivity and activity in separation and catalysis but this microporous material can only be crystallized using hexamethyleneimine, quinuclidine and cyclohexylamine organic templates thus far. Herein, the hydrot...
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my.um.eprints.417232023-10-26T04:53:29Z http://eprints.um.edu.my/41723/ SAPO-35 zeolite crystallized using novel structure-directing agent for catalytic conversion of levulinic acid into ethyl levulinate under non-microwave instant heating Ma, Yik-Ken Chia, Stephen Paillaud, Jean-Louis Daou, T. Jean Khoerunnisa, Fitri El-Bahy, Zeinhom M. Ling, Tau Chuan Altalhi, Amal A. Mahmoud, Samy F. Ng, Eng-Poh Q Science (General) SAPO-35 zeolite (LEV topology) is an 8-membered ring zeolite material that offers high selectivity and activity in separation and catalysis but this microporous material can only be crystallized using hexamethyleneimine, quinuclidine and cyclohexylamine organic templates thus far. Herein, the hydrothermal synthesis and crystallization evolution of SAPO-35 using a novel N-heterocyclic organic template, namely 1-propylpyridinium hydroxide (PPy]OH), are reported. As compared to the previous reported hexamethyleneimine-templated synthesis conditions (24 h, 200 degrees C), the current system requires merely 21 h to fully crystallize SAPO-35 using PPy]OH new template. Furthermore, the current system also witnesses a different route for crystallizing SAPO-35 where dissolution of reactants (induction), nucleation, crystal growth and intrazeolite transformation from SAPO-34 to SAPO-35 are observed. The resulting SAPO-35 zeolite of high porosity and acidity is active and selective in the catalytic conversion of levulinic acid into ethyl levulinate-a biofuel additive-under non-microwave instant heating, where it shows 96.3% conversion and 100% selectivity towards ethyl levulinate after 20 min at 190 degrees C with high catalyst reusability. Hence, this work offers a promising route to crystallize SAPO-35 that is benign for catalytic biofuel upgrading. Elsevier 2022-08-01 Article PeerReviewed Ma, Yik-Ken and Chia, Stephen and Paillaud, Jean-Louis and Daou, T. Jean and Khoerunnisa, Fitri and El-Bahy, Zeinhom M. and Ling, Tau Chuan and Altalhi, Amal A. and Mahmoud, Samy F. and Ng, Eng-Poh (2022) SAPO-35 zeolite crystallized using novel structure-directing agent for catalytic conversion of levulinic acid into ethyl levulinate under non-microwave instant heating. Materials Chemistry and Physics, 287. ISSN 0254-0584, DOI https://doi.org/10.1016/j.matchemphys.2022.126240 <https://doi.org/10.1016/j.matchemphys.2022.126240>. 10.1016/j.matchemphys.2022.126240 |
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Q Science (General) Ma, Yik-Ken Chia, Stephen Paillaud, Jean-Louis Daou, T. Jean Khoerunnisa, Fitri El-Bahy, Zeinhom M. Ling, Tau Chuan Altalhi, Amal A. Mahmoud, Samy F. Ng, Eng-Poh SAPO-35 zeolite crystallized using novel structure-directing agent for catalytic conversion of levulinic acid into ethyl levulinate under non-microwave instant heating |
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SAPO-35 zeolite (LEV topology) is an 8-membered ring zeolite material that offers high selectivity and activity in separation and catalysis but this microporous material can only be crystallized using hexamethyleneimine, quinuclidine and cyclohexylamine organic templates thus far. Herein, the hydrothermal synthesis and crystallization evolution of SAPO-35 using a novel N-heterocyclic organic template, namely 1-propylpyridinium hydroxide (PPy]OH), are reported. As compared to the previous reported hexamethyleneimine-templated synthesis conditions (24 h, 200 degrees C), the current system requires merely 21 h to fully crystallize SAPO-35 using PPy]OH new template. Furthermore, the current system also witnesses a different route for crystallizing SAPO-35 where dissolution of reactants (induction), nucleation, crystal growth and intrazeolite transformation from SAPO-34 to SAPO-35 are observed. The resulting SAPO-35 zeolite of high porosity and acidity is active and selective in the catalytic conversion of levulinic acid into ethyl levulinate-a biofuel additive-under non-microwave instant heating, where it shows 96.3% conversion and 100% selectivity towards ethyl levulinate after 20 min at 190 degrees C with high catalyst reusability. Hence, this work offers a promising route to crystallize SAPO-35 that is benign for catalytic biofuel upgrading. |
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Article |
author |
Ma, Yik-Ken Chia, Stephen Paillaud, Jean-Louis Daou, T. Jean Khoerunnisa, Fitri El-Bahy, Zeinhom M. Ling, Tau Chuan Altalhi, Amal A. Mahmoud, Samy F. Ng, Eng-Poh |
author_facet |
Ma, Yik-Ken Chia, Stephen Paillaud, Jean-Louis Daou, T. Jean Khoerunnisa, Fitri El-Bahy, Zeinhom M. Ling, Tau Chuan Altalhi, Amal A. Mahmoud, Samy F. Ng, Eng-Poh |
author_sort |
Ma, Yik-Ken |
title |
SAPO-35 zeolite crystallized using novel structure-directing agent for catalytic conversion of levulinic acid into ethyl levulinate under non-microwave instant heating |
title_short |
SAPO-35 zeolite crystallized using novel structure-directing agent for catalytic conversion of levulinic acid into ethyl levulinate under non-microwave instant heating |
title_full |
SAPO-35 zeolite crystallized using novel structure-directing agent for catalytic conversion of levulinic acid into ethyl levulinate under non-microwave instant heating |
title_fullStr |
SAPO-35 zeolite crystallized using novel structure-directing agent for catalytic conversion of levulinic acid into ethyl levulinate under non-microwave instant heating |
title_full_unstemmed |
SAPO-35 zeolite crystallized using novel structure-directing agent for catalytic conversion of levulinic acid into ethyl levulinate under non-microwave instant heating |
title_sort |
sapo-35 zeolite crystallized using novel structure-directing agent for catalytic conversion of levulinic acid into ethyl levulinate under non-microwave instant heating |
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Elsevier |
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2022 |
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http://eprints.um.edu.my/41723/ |
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1781704550515736576 |
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13.160551 |