Nanocarbon-based catalysts for esterification: Effect of carbon dimensionality and synergistic effect of the surface functional groups
Carbon-based solid acid catalysts represented outstanding hydrothermal and mechanical properties but lower catalytic performances and stabilities. Therefore, more comprehensive investigations should be conducted to optimize their catalytic performances. The correlations between catalytic performance...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019
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| Online Access: | https://eprints.nottingham.ac.uk/56403/ |
| _version_ | 1848799323705311232 |
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| author | Zhang, Honglei Luo, Xiang Shi, Kaiqi Wu, Tao He, Feng Yang, Hangqi Zhang, Shanshan Peng, Chuang |
| author_facet | Zhang, Honglei Luo, Xiang Shi, Kaiqi Wu, Tao He, Feng Yang, Hangqi Zhang, Shanshan Peng, Chuang |
| author_sort | Zhang, Honglei |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Carbon-based solid acid catalysts represented outstanding hydrothermal and mechanical properties but lower catalytic performances and stabilities. Therefore, more comprehensive investigations should be conducted to optimize their catalytic performances. The correlations between catalytic performance, carbon dimensionality and composition of oxygen-containing functional groups of nanocarbon-based catalysts were investigated. The dimensionality of carbon materials had notable effect on the catalytic reactivity and the layered 2-D structure could maximize the solid/liquid interface and minimize the mass transfer resistance and thus favor the catalytic esterification. GO-50, prepared with 50 mL concentrated H2SO4, exhibited outstanding catalytic activity and had 3 times higher turnover frequency (TOF) value than that of H2SO4. In GO-50, the -SO3H groups were identified as the primary catalytic active sites, while the carboxyl groups enhanced the inherent activity of -SO3H, thus facilitating the esterification. The -COOH/-SO3H molar ratio played significant roles and desirable -COOH/-SO3H molar ratio would promote esterification significantly. The esterification kinetics catalyzed by GO-50 was studied and the apparent activation energy of esterification by GO-50 is 1.5 times lower than that by H2SO4. The esterification mechanism by GO-50 was also proposed. Furthermore, GO-50/Poly (ether sulfones) (PES) membrane was prepared and employed in esterification and the optimal reaction conditions were systematically studied. |
| first_indexed | 2025-11-14T20:33:51Z |
| format | Article |
| id | nottingham-56403 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T20:33:51Z |
| publishDate | 2019 |
| publisher | Elsevier |
| recordtype | eprints |
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| spelling | nottingham-564032021-03-01T04:30:13Z https://eprints.nottingham.ac.uk/56403/ Nanocarbon-based catalysts for esterification: Effect of carbon dimensionality and synergistic effect of the surface functional groups Zhang, Honglei Luo, Xiang Shi, Kaiqi Wu, Tao He, Feng Yang, Hangqi Zhang, Shanshan Peng, Chuang Carbon-based solid acid catalysts represented outstanding hydrothermal and mechanical properties but lower catalytic performances and stabilities. Therefore, more comprehensive investigations should be conducted to optimize their catalytic performances. The correlations between catalytic performance, carbon dimensionality and composition of oxygen-containing functional groups of nanocarbon-based catalysts were investigated. The dimensionality of carbon materials had notable effect on the catalytic reactivity and the layered 2-D structure could maximize the solid/liquid interface and minimize the mass transfer resistance and thus favor the catalytic esterification. GO-50, prepared with 50 mL concentrated H2SO4, exhibited outstanding catalytic activity and had 3 times higher turnover frequency (TOF) value than that of H2SO4. In GO-50, the -SO3H groups were identified as the primary catalytic active sites, while the carboxyl groups enhanced the inherent activity of -SO3H, thus facilitating the esterification. The -COOH/-SO3H molar ratio played significant roles and desirable -COOH/-SO3H molar ratio would promote esterification significantly. The esterification kinetics catalyzed by GO-50 was studied and the apparent activation energy of esterification by GO-50 is 1.5 times lower than that by H2SO4. The esterification mechanism by GO-50 was also proposed. Furthermore, GO-50/Poly (ether sulfones) (PES) membrane was prepared and employed in esterification and the optimal reaction conditions were systematically studied. Elsevier 2019-06-30 Article PeerReviewed application/pdf en cc_by_nc_nd https://eprints.nottingham.ac.uk/56403/1/Nanocarbon-based%20catalysts%20for%20esterification%20Effect%20of%20carbon%20dimensionality%20and%20synergistic%20effect%20of%20the%20surface%20functional%20groups.pdf Zhang, Honglei, Luo, Xiang, Shi, Kaiqi, Wu, Tao, He, Feng, Yang, Hangqi, Zhang, Shanshan and Peng, Chuang (2019) Nanocarbon-based catalysts for esterification: Effect of carbon dimensionality and synergistic effect of the surface functional groups. Carbon, 147 . pp. 134-145. ISSN 0008-6223 Catalytic activity; Carbon-based solid acid catalyst; Esterification; Graphene oxide; Reaction kinetics https://www.sciencedirect.com/science/article/pii/S0008622319302106 doi:10.1016/j.carbon.2019.02.079 doi:10.1016/j.carbon.2019.02.079 |
| spellingShingle | Catalytic activity; Carbon-based solid acid catalyst; Esterification; Graphene oxide; Reaction kinetics Zhang, Honglei Luo, Xiang Shi, Kaiqi Wu, Tao He, Feng Yang, Hangqi Zhang, Shanshan Peng, Chuang Nanocarbon-based catalysts for esterification: Effect of carbon dimensionality and synergistic effect of the surface functional groups |
| title | Nanocarbon-based catalysts for esterification: Effect of carbon dimensionality and synergistic effect of the surface functional groups |
| title_full | Nanocarbon-based catalysts for esterification: Effect of carbon dimensionality and synergistic effect of the surface functional groups |
| title_fullStr | Nanocarbon-based catalysts for esterification: Effect of carbon dimensionality and synergistic effect of the surface functional groups |
| title_full_unstemmed | Nanocarbon-based catalysts for esterification: Effect of carbon dimensionality and synergistic effect of the surface functional groups |
| title_short | Nanocarbon-based catalysts for esterification: Effect of carbon dimensionality and synergistic effect of the surface functional groups |
| title_sort | nanocarbon-based catalysts for esterification: effect of carbon dimensionality and synergistic effect of the surface functional groups |
| topic | Catalytic activity; Carbon-based solid acid catalyst; Esterification; Graphene oxide; Reaction kinetics |
| url | https://eprints.nottingham.ac.uk/56403/ https://eprints.nottingham.ac.uk/56403/ https://eprints.nottingham.ac.uk/56403/ |