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Porous catalyst support from clay-precipitated calcium carbonate for carbon nanomaterials growth

Master of Science in Materials Engineering

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Bibliographic Details
Main Author: Yasmin, Yuriz
Other Authors: Mazlee, Mohd Noor, Dr.
Format: Thesis
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2016
Subjects:
Porous materials
Clay
Carbon nanotubes
Nanostructured materials
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72462
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spelling my.unimap-724622021-10-15T07:10:23Z Porous catalyst support from clay-precipitated calcium carbonate for carbon nanomaterials growth Yasmin, Yuriz Mazlee, Mohd Noor, Dr. Porous materials Clay Carbon nanotubes Nanostructured materials Master of Science in Materials Engineering Currently, porous materials were widely used as catalyst supports, adsorption of gases or liquid, and gas sensors. In this research, the fabrication of catalyst support utilised clay with controlled amounts of precipitated calcium carbonate (PCC) at 10 wt.%, 15 wt.%, 20 wt.%, and 25 wt.% via a polymeric foam replication method. A mixture of clay, precipitated calcium carbonate, and distilled water were ball milled for 24 hours and 48 hours milling durations in order to form ceramic slurries. After the impregnation process of polymeric foam into ceramic slurries, the green ceramic was dried and sintered at 1250°C for 2 hours holding time. The main objectives of this research are to study the effects of precipitated calcium carbonate additions and different milling durations on the physical and mechanical properties of the catalyst support. The sample that was fabricated with 25 wt.% of precipitated calcium carbonate and milled at 48 hours was found to have the highest compressive strength which at 1.6 MPa. Besides, one-way analysis of variance (ANOVA) showed that the increase between 10 wt.% and 25 wt.% of PCC has significantly increased the strength of the catalyst support and the coefficient of determination (R2) at 0.92. The increase of the mechanical strength was attributed to the transformation of new phases such as anorthite (2CaAl2Si2O8), mullite (3Al2O3·2SiO2), and gehlenite (3Ca2Al2SiO7). On the other hand, foam density would increase when the percentage of porosity decreased. 2016 2021-10-15T07:08:41Z 2021-10-15T07:08:41Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72462 en Universiti Malaysia Perlis (UniMAP) Universiti Malaysia Perlis (UniMAP) School of Materials Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Porous materials
Clay
Carbon nanotubes
Nanostructured materials
spellingShingle Porous materials
Clay
Carbon nanotubes
Nanostructured materials
Yasmin, Yuriz
Porous catalyst support from clay-precipitated calcium carbonate for carbon nanomaterials growth
description Master of Science in Materials Engineering
author2 Mazlee, Mohd Noor, Dr.
author_facet Mazlee, Mohd Noor, Dr.
Yasmin, Yuriz
format Thesis
author Yasmin, Yuriz
author_sort Yasmin, Yuriz
title Porous catalyst support from clay-precipitated calcium carbonate for carbon nanomaterials growth
title_short Porous catalyst support from clay-precipitated calcium carbonate for carbon nanomaterials growth
title_full Porous catalyst support from clay-precipitated calcium carbonate for carbon nanomaterials growth
title_fullStr Porous catalyst support from clay-precipitated calcium carbonate for carbon nanomaterials growth
title_full_unstemmed Porous catalyst support from clay-precipitated calcium carbonate for carbon nanomaterials growth
title_sort porous catalyst support from clay-precipitated calcium carbonate for carbon nanomaterials growth
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2016
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72462
_version_ 1724609902429601792
score 13.214268

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