Silica Supported Indium Heterogeneous Catalyst In Benzylation And Benzoylation Of Toluene
Indium incorporated silica with different indium content were synthesized via a template free sol-gel method. The silica used was extracted from rice husk (RH) and the resulting catalyst was labeled as RH-xIn (x = 5, 10, 15 and 20). The catalysts were characterized by physico-chemical techniqu...
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my-usm-ep.452062019-08-06T07:08:22Z Silica Supported Indium Heterogeneous Catalyst In Benzylation And Benzoylation Of Toluene 2013-06 Sek, Kei Lin TP1-1185 Chemical technology Indium incorporated silica with different indium content were synthesized via a template free sol-gel method. The silica used was extracted from rice husk (RH) and the resulting catalyst was labeled as RH-xIn (x = 5, 10, 15 and 20). The catalysts were characterized by physico-chemical techniques such as FTIR, N2 adsorption (BET), powder XRD, UV-Vis, SEM, EDX, TEM and AAS for the elemental analysis. RH-blank (without indium) was synthesized as the control for the reaction. No indium was detected in the RH-blank and the percentage of indium was found increase from RH-5In to RH-20In. The N2 adsorption analysis showed the presence of type IV isotherm in RH-blank and RH-xIn, indicating the mesoporous nature of the catalysts. The XRD recorded a broad band at 2θ = 25°, which showed their amorphous character. TEM micrographs revealed the catalysts to be composed of nanoparticles. Friedel-Craft benzylation and benzoylation of toluene with benzyl chloride (BC) and benzoyl chloride (BOZ) were carried out by using RH-xIn (x= 5, 10, 15 and 20) as the catalyst. Benzylation of toluene resulted in 4-methyldiphenylmethane (4-MDM) and 2-methyldiphenylmethane (2-MDM) as the major products while disubstituted products were detected as minor product. Benzoylation of toluene gave 4- methylbenzophenone (4-MBP) and 2-methylbenzophenone (2-MBP) as major products, and 3-methylbenzophenone (3-MBP) as the minor product. 2013-06 Thesis http://eprints.usm.my/45206/ http://eprints.usm.my/45206/1/Sek%20Kei%20Lin24.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Kimia |
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Universiti Sains Malaysia |
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USM Institutional Repository |
| language |
English |
| topic |
TP1-1185 Chemical technology |
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TP1-1185 Chemical technology Sek, Kei Lin Silica Supported Indium Heterogeneous Catalyst In Benzylation And Benzoylation Of Toluene |
| description |
Indium incorporated silica with different indium content were synthesized via
a template free sol-gel method. The silica used was extracted from rice husk (RH)
and the resulting catalyst was labeled as RH-xIn (x = 5, 10, 15 and 20).
The catalysts were characterized by physico-chemical techniques such as
FTIR, N2 adsorption (BET), powder XRD, UV-Vis, SEM, EDX, TEM and AAS for
the elemental analysis. RH-blank (without indium) was synthesized as the control for
the reaction. No indium was detected in the RH-blank and the percentage of indium
was found increase from RH-5In to RH-20In. The N2 adsorption analysis showed the
presence of type IV isotherm in RH-blank and RH-xIn, indicating the mesoporous
nature of the catalysts. The XRD recorded a broad band at 2θ = 25°, which showed
their amorphous character. TEM micrographs revealed the catalysts to be composed
of nanoparticles.
Friedel-Craft benzylation and benzoylation of toluene with benzyl chloride
(BC) and benzoyl chloride (BOZ) were carried out by using RH-xIn (x= 5, 10, 15
and 20) as the catalyst. Benzylation of toluene resulted in 4-methyldiphenylmethane
(4-MDM) and 2-methyldiphenylmethane (2-MDM) as the major products while disubstituted
products were detected as minor product. Benzoylation of toluene gave 4-
methylbenzophenone (4-MBP) and 2-methylbenzophenone (2-MBP) as major
products, and 3-methylbenzophenone (3-MBP) as the minor product. |
| format |
Thesis |
| qualification_level |
Master's degree |
| author |
Sek, Kei Lin |
| author_facet |
Sek, Kei Lin |
| author_sort |
Sek, Kei Lin |
| title |
Silica Supported Indium
Heterogeneous Catalyst In
Benzylation And Benzoylation Of
Toluene |
| title_short |
Silica Supported Indium
Heterogeneous Catalyst In
Benzylation And Benzoylation Of
Toluene |
| title_full |
Silica Supported Indium
Heterogeneous Catalyst In
Benzylation And Benzoylation Of
Toluene |
| title_fullStr |
Silica Supported Indium
Heterogeneous Catalyst In
Benzylation And Benzoylation Of
Toluene |
| title_full_unstemmed |
Silica Supported Indium
Heterogeneous Catalyst In
Benzylation And Benzoylation Of
Toluene |
| title_sort |
silica supported indium
heterogeneous catalyst in
benzylation and benzoylation of
toluene |
| granting_institution |
Universiti Sains Malaysia |
| granting_department |
Pusat Pengajian Kejuruteraan Kimia |
| publishDate |
2013 |
| url |
http://eprints.usm.my/45206/1/Sek%20Kei%20Lin24.pdf |
| _version_ |
1747821468577693696 |