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

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 polym...

Full description

Saved in:

Bibliographic Details
Format:	Thesis
Language:	English
Subjects:	Porous materials Clay Carbon nanotubes Nanostructured materials
Online Access:	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72462/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72462/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72462/4/Yasmin.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-unimap-72462
record_format	uketd_dc
spelling	my-unimap-724622021-10-15T07:10:23Z Porous catalyst support from clay-precipitated calcium carbonate for carbon nanomaterials growth Mazlee, Mohd Noor, Dr. 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. Universiti Malaysia Perlis (UniMAP) Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72462 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72462/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72462/1/Page%201-24.pdf 4dd3f3470150722ac66e7251c174e198 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72462/2/Full%20text.pdf 798b3e12eb8ede5f900e61c78efd6f2e http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72462/4/Yasmin.pdf 44f82ad0096e19c0f61c3174abb5f7d0 Universiti Malaysia Perlis (UniMAP) Porous materials Clay Carbon nanotubes Nanostructured materials School of Materials Engineering
institution	Universiti Malaysia Perlis
collection	UniMAP Institutional Repository
language	English
advisor	Mazlee, Mohd Noor, Dr.
topic	Porous materials Clay Carbon nanotubes Nanostructured materials
spellingShingle	Porous materials Clay Carbon nanotubes Nanostructured materials Porous catalyst support from clay-precipitated calcium carbonate for carbon nanomaterials growth
description	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.
format	Thesis
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
granting_institution	Universiti Malaysia Perlis (UniMAP)
granting_department	School of Materials Engineering
url	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72462/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72462/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72462/4/Yasmin.pdf
_version_	1747836869330075648

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

Similar Items