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Enhanced selective oxidation of benzyl alcohol to benzaldehyde on mesopore created mordenite catalyst

The aluminum rich mordenite (Si/Al wt% ~7) sample has been treated with various acids i.e., hydrochloric acid (MOR-HC), nitric acid (MOR-HN) and oxalic acid (MOR-Ox) so as to facilitate the dealumination and mesopore creation in the mordenite. The parent as well as acid treated samples have been cha... Full description

Journal Title: Journal of Porous Materials 2016, Vol.23(6), pp.1671-1678
Main Author: Saxena, Sandeep
Other Authors: Viswanadham, Nagabhatla , Al-Muhtaseb, Ala’a
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 1380-2224 ; E-ISSN: 1573-4854 ; DOI: 10.1007/s10934-016-0228-6
Link: http://dx.doi.org/10.1007/s10934-016-0228-6
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recordid: springer_jour10.1007/s10934-016-0228-6
title: Enhanced selective oxidation of benzyl alcohol to benzaldehyde on mesopore created mordenite catalyst
format: Article
creator:
  • Saxena, Sandeep
  • Viswanadham, Nagabhatla
  • Al-Muhtaseb, Ala’a
subjects:
  • Acid leaching
  • Selective oxidation
  • Mordenite
  • Mesopores
  • Solvent-free
ispartof: Journal of Porous Materials, 2016, Vol.23(6), pp.1671-1678
description: The aluminum rich mordenite (Si/Al wt% ~7) sample has been treated with various acids i.e., hydrochloric acid (MOR-HC), nitric acid (MOR-HN) and oxalic acid (MOR-Ox) so as to facilitate the dealumination and mesopore creation in the mordenite. The parent as well as acid treated samples have been characterized by XRD, FTIR, SEM, TEM, BET, N2 adsorption–desorption, porosity and NH3–TPD. The resultant samples have been applied for their catalytic activity towards selective oxidation of benzyl alcohol to produce benzaldehyde at solvent-free liquid phase reaction, using H 2 O 2 as oxygen source. Irrespective to the nature of acid, all the dealuminated samples exhibited increase in surface area, external surface area, pore volume and mesopore volume, while the highest increase appeared in case of MOR-HN. This phenomenon also reflected in the selective oxidation activity of the samples, where all the acid treated samples exhibited improvement in the benzyl alcohol conversion and benzaldehyde yield. The highest conversion of >99 % along with as high as >100 % selectivity to benzaldehyde was obtained on MOR-HN catalyst. This particular catalyst also exhibited excellent reusability suitable for its industrial applications.
language: eng
source:
identifier: ISSN: 1380-2224 ; E-ISSN: 1573-4854 ; DOI: 10.1007/s10934-016-0228-6
fulltext: fulltext
issn:
  • 1573-4854
  • 15734854
  • 1380-2224
  • 13802224
url: Link


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titleEnhanced selective oxidation of benzyl alcohol to benzaldehyde on mesopore created mordenite catalyst
creatorSaxena, Sandeep ; Viswanadham, Nagabhatla ; Al-Muhtaseb, Ala’a
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subjectAcid leaching ; Selective oxidation ; Mordenite ; Mesopores ; Solvent-free
descriptionThe aluminum rich mordenite (Si/Al wt% ~7) sample has been treated with various acids i.e., hydrochloric acid (MOR-HC), nitric acid (MOR-HN) and oxalic acid (MOR-Ox) so as to facilitate the dealumination and mesopore creation in the mordenite. The parent as well as acid treated samples have been characterized by XRD, FTIR, SEM, TEM, BET, N2 adsorption–desorption, porosity and NH3–TPD. The resultant samples have been applied for their catalytic activity towards selective oxidation of benzyl alcohol to produce benzaldehyde at solvent-free liquid phase reaction, using H 2 O 2 as oxygen source. Irrespective to the nature of acid, all the dealuminated samples exhibited increase in surface area, external surface area, pore volume and mesopore volume, while the highest increase appeared in case of MOR-HN. This phenomenon also reflected in the selective oxidation activity of the samples, where all the acid treated samples exhibited improvement in the benzyl alcohol conversion and benzaldehyde yield. The highest conversion of >99 % along with as high as >100 % selectivity to benzaldehyde was obtained on MOR-HN catalyst. This particular catalyst also exhibited excellent reusability suitable for its industrial applications.
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titleEnhanced selective oxidation of benzyl alcohol to benzaldehyde on mesopore created mordenite catalyst
descriptionThe aluminum rich mordenite (Si/Al wt% ~7) sample has been treated with various acids i.e., hydrochloric acid (MOR-HC), nitric acid (MOR-HN) and oxalic acid (MOR-Ox) so as to facilitate the dealumination and mesopore creation in the mordenite. The parent as well as acid treated samples have been characterized by XRD, FTIR, SEM, TEM, BET, N2 adsorption–desorption, porosity and NH3–TPD. The resultant samples have been applied for their catalytic activity towards selective oxidation of benzyl alcohol to produce benzaldehyde at solvent-free liquid phase reaction, using H 2 O 2 as oxygen source. Irrespective to the nature of acid, all the dealuminated samples exhibited increase in surface area, external surface area, pore volume and mesopore volume, while the highest increase appeared in case of MOR-HN. This phenomenon also reflected in the selective oxidation activity of the samples, where all the acid treated samples exhibited improvement in the benzyl alcohol conversion and benzaldehyde yield. The highest conversion of >99 % along with as high as >100 % selectivity to benzaldehyde was obtained on MOR-HN catalyst. This particular catalyst also exhibited excellent reusability suitable for its industrial applications.
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abstractThe aluminum rich mordenite (Si/Al wt% ~7) sample has been treated with various acids i.e., hydrochloric acid (MOR-HC), nitric acid (MOR-HN) and oxalic acid (MOR-Ox) so as to facilitate the dealumination and mesopore creation in the mordenite. The parent as well as acid treated samples have been characterized by XRD, FTIR, SEM, TEM, BET, N2 adsorption–desorption, porosity and NH3–TPD. The resultant samples have been applied for their catalytic activity towards selective oxidation of benzyl alcohol to produce benzaldehyde at solvent-free liquid phase reaction, using H 2 O 2 as oxygen source. Irrespective to the nature of acid, all the dealuminated samples exhibited increase in surface area, external surface area, pore volume and mesopore volume, while the highest increase appeared in case of MOR-HN. This phenomenon also reflected in the selective oxidation activity of the samples, where all the acid treated samples exhibited improvement in the benzyl alcohol conversion and benzaldehyde yield. The highest conversion of >99 % along with as high as >100 % selectivity to benzaldehyde was obtained on MOR-HN catalyst. This particular catalyst also exhibited excellent reusability suitable for its industrial applications.
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doi10.1007/s10934-016-0228-6
pages1671-1678
date2016-12