Cargando…
Synthesis of hierarchical nanocrystalline β zeolite as efficient catalyst for alkylation of benzene with benzyl alcohol
To develop an efficient solid acid catalysts for the Friedel–Crafts alkylation reaction, especially for involving bulky molecules, the direct synthesis of hierarchical nanocrystalline β zeolites were achieved by using amphiphilic organosilane ([(CH(3)O)(3)SiC(3)H(6)N(CH(3))(2)C(18)H(37)]Cl, TPOAC) a...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8981250/ https://www.ncbi.nlm.nih.gov/pubmed/35425505 http://dx.doi.org/10.1039/d2ra00209d |
_version_ | 1784681563845296128 |
---|---|
author | Zhou, Pan Liu, Meng-Nan Luo, Qun-Xing Zhang, Jianbo Chen, Huiyong Ma, Xiaoxun Hao, Qing-Qing |
author_facet | Zhou, Pan Liu, Meng-Nan Luo, Qun-Xing Zhang, Jianbo Chen, Huiyong Ma, Xiaoxun Hao, Qing-Qing |
author_sort | Zhou, Pan |
collection | PubMed |
description | To develop an efficient solid acid catalysts for the Friedel–Crafts alkylation reaction, especially for involving bulky molecules, the direct synthesis of hierarchical nanocrystalline β zeolites were achieved by using amphiphilic organosilane ([(CH(3)O)(3)SiC(3)H(6)N(CH(3))(2)C(18)H(37)]Cl, TPOAC) as collaborative structure-directing agent (SDA). The growth evolution of β crystals and the influence of TPOAC/SiO(2) molar ratio on the mesoporous structure, crystal size, and acidic properties of β zeolites were investigated and discussed in detail. The characterization results reveal that intracrystalline mesopores and intercrystalline mesopores/macropores via the stacking of β nanocrystals were generated over the hierarchical β zeolites. Moreover, most of the strong acid sites were well remained compared with the conventional microporous β zeolite. Consequently, the hierarchical nanocrystalline β zeolite synthesized under the optimized synthesis conditions shows improved specific catalytic activity of acid sites (turnover number, TON) in alkylation of benzene with benzyl alcohol, which can be attributed to the integrated balance of considerable mesoporosity, accessibility of the acid sites, and well-remained strong acid sites in the hierarchical β zeolite. |
format | Online Article Text |
id | pubmed-8981250 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-89812502022-04-13 Synthesis of hierarchical nanocrystalline β zeolite as efficient catalyst for alkylation of benzene with benzyl alcohol Zhou, Pan Liu, Meng-Nan Luo, Qun-Xing Zhang, Jianbo Chen, Huiyong Ma, Xiaoxun Hao, Qing-Qing RSC Adv Chemistry To develop an efficient solid acid catalysts for the Friedel–Crafts alkylation reaction, especially for involving bulky molecules, the direct synthesis of hierarchical nanocrystalline β zeolites were achieved by using amphiphilic organosilane ([(CH(3)O)(3)SiC(3)H(6)N(CH(3))(2)C(18)H(37)]Cl, TPOAC) as collaborative structure-directing agent (SDA). The growth evolution of β crystals and the influence of TPOAC/SiO(2) molar ratio on the mesoporous structure, crystal size, and acidic properties of β zeolites were investigated and discussed in detail. The characterization results reveal that intracrystalline mesopores and intercrystalline mesopores/macropores via the stacking of β nanocrystals were generated over the hierarchical β zeolites. Moreover, most of the strong acid sites were well remained compared with the conventional microporous β zeolite. Consequently, the hierarchical nanocrystalline β zeolite synthesized under the optimized synthesis conditions shows improved specific catalytic activity of acid sites (turnover number, TON) in alkylation of benzene with benzyl alcohol, which can be attributed to the integrated balance of considerable mesoporosity, accessibility of the acid sites, and well-remained strong acid sites in the hierarchical β zeolite. The Royal Society of Chemistry 2022-02-09 /pmc/articles/PMC8981250/ /pubmed/35425505 http://dx.doi.org/10.1039/d2ra00209d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Zhou, Pan Liu, Meng-Nan Luo, Qun-Xing Zhang, Jianbo Chen, Huiyong Ma, Xiaoxun Hao, Qing-Qing Synthesis of hierarchical nanocrystalline β zeolite as efficient catalyst for alkylation of benzene with benzyl alcohol |
title | Synthesis of hierarchical nanocrystalline β zeolite as efficient catalyst for alkylation of benzene with benzyl alcohol |
title_full | Synthesis of hierarchical nanocrystalline β zeolite as efficient catalyst for alkylation of benzene with benzyl alcohol |
title_fullStr | Synthesis of hierarchical nanocrystalline β zeolite as efficient catalyst for alkylation of benzene with benzyl alcohol |
title_full_unstemmed | Synthesis of hierarchical nanocrystalline β zeolite as efficient catalyst for alkylation of benzene with benzyl alcohol |
title_short | Synthesis of hierarchical nanocrystalline β zeolite as efficient catalyst for alkylation of benzene with benzyl alcohol |
title_sort | synthesis of hierarchical nanocrystalline β zeolite as efficient catalyst for alkylation of benzene with benzyl alcohol |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8981250/ https://www.ncbi.nlm.nih.gov/pubmed/35425505 http://dx.doi.org/10.1039/d2ra00209d |
work_keys_str_mv | AT zhoupan synthesisofhierarchicalnanocrystallinebzeoliteasefficientcatalystforalkylationofbenzenewithbenzylalcohol AT liumengnan synthesisofhierarchicalnanocrystallinebzeoliteasefficientcatalystforalkylationofbenzenewithbenzylalcohol AT luoqunxing synthesisofhierarchicalnanocrystallinebzeoliteasefficientcatalystforalkylationofbenzenewithbenzylalcohol AT zhangjianbo synthesisofhierarchicalnanocrystallinebzeoliteasefficientcatalystforalkylationofbenzenewithbenzylalcohol AT chenhuiyong synthesisofhierarchicalnanocrystallinebzeoliteasefficientcatalystforalkylationofbenzenewithbenzylalcohol AT maxiaoxun synthesisofhierarchicalnanocrystallinebzeoliteasefficientcatalystforalkylationofbenzenewithbenzylalcohol AT haoqingqing synthesisofhierarchicalnanocrystallinebzeoliteasefficientcatalystforalkylationofbenzenewithbenzylalcohol |