Synthesis and catalytic advantage of a hierarchical ordered macroporous KIT-6 silica

S Siles-Quesada; CMA Parlett; AC Lamb; JC Manayil; Y Liu; J Mensah; H Arandiyan; K Wilson; AF Lee

doi:10.1016/j.mtchem.2023.101574

Synthesis and catalytic advantage of a hierarchical ordered macroporous KIT-6 silica

S Siles-Quesada, CMA Parlett, AC Lamb, JC Manayil, Y Liu, J Mensah, H Arandiyan, K Wilson, AF Lee

CE - Academic & Research

Research output: Contribution to journal › Article › peer-review

Abstract

Ordered mesoporous silicas are important technological materials in catalysis, sorption and separation science, however new architectures are desired to improve in-pore accessibility. Here we report the first synthesis of an ordered macroporous KIT-6, obtained by optimizing the ratios of Pluronic P123: sodium dodecyl sulfate cosurfactants, and a 400 nm polystyrene nanosphere macropore template. The macroporous KIT-6 possesses 370 nm macropores in a face-centered cubic arrangement, surrounded by a silica framework comprised of cubic Ia3¯d three-dimensional, intertwined 5 nm mesopore channels. Propylsulfonic acid (PrSO ₃H) functionalization affords a macroporous KIT-6 solid acid catalyst whose hierarchical pore network permits rapid diffusion and esterification of fatty acids, conferring a five-fold enhancement for palmitic acid esterification compared with a conventional mesoporous PrSO ₃H/KIT-6, and 33% rate enhancement vs. an ordered macroporous PrSO ₃H/SBA-15.

Original language	English
Article number	101574
Number of pages	10
Journal	Materials Today Chemistry
Volume	30
Early online date	6 Jun 2023
DOIs	https://doi.org/10.1016/j.mtchem.2023.101574
Publication status	E-pub ahead of print - 6 Jun 2023

Keywords

Esterification
Fatty acid
Hierarchical
KIT-6
Ordered mesoporous silica

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10.1016/j.mtchem.2023.101574Licence: CC BY

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title = "Synthesis and catalytic advantage of a hierarchical ordered macroporous KIT-6 silica",

abstract = "Ordered mesoporous silicas are important technological materials in catalysis, sorption and separation science, however new architectures are desired to improve in-pore accessibility. Here we report the first synthesis of an ordered macroporous KIT-6, obtained by optimizing the ratios of Pluronic P123: sodium dodecyl sulfate cosurfactants, and a 400 nm polystyrene nanosphere macropore template. The macroporous KIT-6 possesses 370 nm macropores in a face-centered cubic arrangement, surrounded by a silica framework comprised of cubic Ia3¯d three-dimensional, intertwined 5 nm mesopore channels. Propylsulfonic acid (PrSO 3H) functionalization affords a macroporous KIT-6 solid acid catalyst whose hierarchical pore network permits rapid diffusion and esterification of fatty acids, conferring a five-fold enhancement for palmitic acid esterification compared with a conventional mesoporous PrSO 3H/KIT-6, and 33% rate enhancement vs. an ordered macroporous PrSO 3H/SBA-15.",

keywords = "Esterification, Fatty acid, Hierarchical, KIT-6, Ordered mesoporous silica",

author = "S Siles-Quesada and CMA Parlett and AC Lamb and JC Manayil and Y Liu and J Mensah and H Arandiyan and K Wilson and AF Lee",

year = "2023",

month = jun,

day = "6",

doi = "10.1016/j.mtchem.2023.101574",

language = "English",

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T1 - Synthesis and catalytic advantage of a hierarchical ordered macroporous KIT-6 silica

AU - Siles-Quesada, S

AU - Parlett, CMA

AU - Lamb, AC

AU - Manayil, JC

AU - Liu, Y

AU - Mensah, J

AU - Arandiyan, H

AU - Wilson, K

AU - Lee, AF

PY - 2023/6/6

Y1 - 2023/6/6

N2 - Ordered mesoporous silicas are important technological materials in catalysis, sorption and separation science, however new architectures are desired to improve in-pore accessibility. Here we report the first synthesis of an ordered macroporous KIT-6, obtained by optimizing the ratios of Pluronic P123: sodium dodecyl sulfate cosurfactants, and a 400 nm polystyrene nanosphere macropore template. The macroporous KIT-6 possesses 370 nm macropores in a face-centered cubic arrangement, surrounded by a silica framework comprised of cubic Ia3¯d three-dimensional, intertwined 5 nm mesopore channels. Propylsulfonic acid (PrSO 3H) functionalization affords a macroporous KIT-6 solid acid catalyst whose hierarchical pore network permits rapid diffusion and esterification of fatty acids, conferring a five-fold enhancement for palmitic acid esterification compared with a conventional mesoporous PrSO 3H/KIT-6, and 33% rate enhancement vs. an ordered macroporous PrSO 3H/SBA-15.

AB - Ordered mesoporous silicas are important technological materials in catalysis, sorption and separation science, however new architectures are desired to improve in-pore accessibility. Here we report the first synthesis of an ordered macroporous KIT-6, obtained by optimizing the ratios of Pluronic P123: sodium dodecyl sulfate cosurfactants, and a 400 nm polystyrene nanosphere macropore template. The macroporous KIT-6 possesses 370 nm macropores in a face-centered cubic arrangement, surrounded by a silica framework comprised of cubic Ia3¯d three-dimensional, intertwined 5 nm mesopore channels. Propylsulfonic acid (PrSO 3H) functionalization affords a macroporous KIT-6 solid acid catalyst whose hierarchical pore network permits rapid diffusion and esterification of fatty acids, conferring a five-fold enhancement for palmitic acid esterification compared with a conventional mesoporous PrSO 3H/KIT-6, and 33% rate enhancement vs. an ordered macroporous PrSO 3H/SBA-15.

KW - Esterification

KW - Fatty acid

KW - Hierarchical

KW - KIT-6

KW - Ordered mesoporous silica

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U2 - 10.1016/j.mtchem.2023.101574

DO - 10.1016/j.mtchem.2023.101574

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JO - Materials Today Chemistry

JF - Materials Today Chemistry

M1 - 101574

ER -

Synthesis and catalytic advantage of a hierarchical ordered macroporous KIT-6 silica

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Keywords

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UoMaH: The University of Manchester at Harwell

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Synthesis and catalytic advantage of a hierarchical ordered macroporous KIT-6 silica

Abstract

Keywords

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UoMaH: The University of Manchester at Harwell

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