Fabrication SiO2 -NiO foam via replication technique for steam methane reforming catalyst at low temperatures

Porous ceramic is a type of material that has highly open and partially interconnected pores. It has a wide range of applications, which include catalyst support, filtration, adsorption and separation.The aim of this study is to fabricate Silica-Nickel Oxide (SiO2-NiO) foams in the range 70 μm to...

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Main Author:	Muda, Rizamarhaiza
Format:	Thesis
Language:	English English English
Published:	2021
Subjects:	TA401-492 Materials of engineering and construction Mechanics of materials
Online Access:	http://eprints.uthm.edu.my/1843/2/RIZAMARHAIZA%20BINTI%20MUDA%20-%20declaration.pdf http://eprints.uthm.edu.my/1843/1/RIZAMARHAIZA%20BINTI%20MUDA%20-%2024p.pdf http://eprints.uthm.edu.my/1843/3/RIZAMARHAIZA%20BINTI%20MUDA%20-%20full%20text.pdf
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spelling	my-uthm-ep.18432021-10-12T04:06:21Z Fabrication SiO2 -NiO foam via replication technique for steam methane reforming catalyst at low temperatures 2021-03 Muda, Rizamarhaiza TA401-492 Materials of engineering and construction. Mechanics of materials Porous ceramic is a type of material that has highly open and partially interconnected pores. It has a wide range of applications, which include catalyst support, filtration, adsorption and separation.The aim of this study is to fabricate Silica-Nickel Oxide (SiO2-NiO) foams in the range 70 μm to 150μm open pore size, 75% to 90% of porosity, good physical and mechanical properties as a criteria catalyst in the Steam Methane Reforming (SMR) application. In this work, the porous foam fabricated with different compositions of SiO2 as derived from Rice Husk Ash (RHA) (20% to 35%) and at different sintering temperatures (850°C to 1250°C) by using replication sponge method. Characterisation of SiO2 and SiO2-NiO foams included morphological analysis, porosity and density test, and compression test as criteria compatibility of SiO2 and NiO as a catalyst in methane reforming. The morphology result showed open pores with size ranging from 15.13 μm to 76.06 μm. The lowest result for apparent porosity obtained was 65% and the highest was 81.74%, while the lowest and highest values for bulk density were 0.626 g/cm3 and 1.070 g/cm3, respectively. The result for compressive strength was within the range of 0.06 MPa to 0.47 MPa. Throughout the observations, the maximum performance shown the SiO2-NiO foam produced with 35wt% SiO2 and 5wt% NiO was found to have mechanical and physical properties much like those of a filter catalyst in SMR. The methane (CH4) conversion using the SiO2-NiO foam was shown the range of 34.72% to 42.6% at different low temperatures. The results proved that the foam from silica as derived from RHA and NiO is very suitable to be used as a catalyst in SMR due to achieved the minimum CH4 conversion over than 21%. 2021-03 Thesis http://eprints.uthm.edu.my/1843/ http://eprints.uthm.edu.my/1843/2/RIZAMARHAIZA%20BINTI%20MUDA%20-%20declaration.pdf text en staffonly http://eprints.uthm.edu.my/1843/1/RIZAMARHAIZA%20BINTI%20MUDA%20-%2024p.pdf text en public http://eprints.uthm.edu.my/1843/3/RIZAMARHAIZA%20BINTI%20MUDA%20-%20full%20text.pdf text en validuser phd doctoral Universiti Tun Hussein Onn Malaysia Faculty of Mechanical and Manufacturing Engineering
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TA401-492 Materials of engineering and construction Mechanics of materials
spellingShingle	TA401-492 Materials of engineering and construction Mechanics of materials Muda, Rizamarhaiza Fabrication SiO2 -NiO foam via replication technique for steam methane reforming catalyst at low temperatures
description	Porous ceramic is a type of material that has highly open and partially interconnected pores. It has a wide range of applications, which include catalyst support, filtration, adsorption and separation.The aim of this study is to fabricate Silica-Nickel Oxide (SiO2-NiO) foams in the range 70 μm to 150μm open pore size, 75% to 90% of porosity, good physical and mechanical properties as a criteria catalyst in the Steam Methane Reforming (SMR) application. In this work, the porous foam fabricated with different compositions of SiO2 as derived from Rice Husk Ash (RHA) (20% to 35%) and at different sintering temperatures (850°C to 1250°C) by using replication sponge method. Characterisation of SiO2 and SiO2-NiO foams included morphological analysis, porosity and density test, and compression test as criteria compatibility of SiO2 and NiO as a catalyst in methane reforming. The morphology result showed open pores with size ranging from 15.13 μm to 76.06 μm. The lowest result for apparent porosity obtained was 65% and the highest was 81.74%, while the lowest and highest values for bulk density were 0.626 g/cm3 and 1.070 g/cm3, respectively. The result for compressive strength was within the range of 0.06 MPa to 0.47 MPa. Throughout the observations, the maximum performance shown the SiO2-NiO foam produced with 35wt% SiO2 and 5wt% NiO was found to have mechanical and physical properties much like those of a filter catalyst in SMR. The methane (CH4) conversion using the SiO2-NiO foam was shown the range of 34.72% to 42.6% at different low temperatures. The results proved that the foam from silica as derived from RHA and NiO is very suitable to be used as a catalyst in SMR due to achieved the minimum CH4 conversion over than 21%.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Muda, Rizamarhaiza
author_facet	Muda, Rizamarhaiza
author_sort	Muda, Rizamarhaiza
title	Fabrication SiO2 -NiO foam via replication technique for steam methane reforming catalyst at low temperatures
title_short	Fabrication SiO2 -NiO foam via replication technique for steam methane reforming catalyst at low temperatures
title_full	Fabrication SiO2 -NiO foam via replication technique for steam methane reforming catalyst at low temperatures
title_fullStr	Fabrication SiO2 -NiO foam via replication technique for steam methane reforming catalyst at low temperatures
title_full_unstemmed	Fabrication SiO2 -NiO foam via replication technique for steam methane reforming catalyst at low temperatures
title_sort	fabrication sio2 -nio foam via replication technique for steam methane reforming catalyst at low temperatures
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Mechanical and Manufacturing Engineering
publishDate	2021
url	http://eprints.uthm.edu.my/1843/2/RIZAMARHAIZA%20BINTI%20MUDA%20-%20declaration.pdf http://eprints.uthm.edu.my/1843/1/RIZAMARHAIZA%20BINTI%20MUDA%20-%2024p.pdf http://eprints.uthm.edu.my/1843/3/RIZAMARHAIZA%20BINTI%20MUDA%20-%20full%20text.pdf
_version_	1747830871403003904

Fabrication SiO2 -NiO foam via replication technique for steam methane reforming catalyst at low temperatures

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