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Growth and structural characterization of lanthanum-strontium-cobalt thin film synthesized by sol-gel dip coating for solid oxide fuel cell

The porosity of a solid oxide fuel cell (SOFC) cathode made of lanthanum-strontium-cobalt (LSC) has not been addressed sufficiently. The LSC thin films were deposited on glass substrates by sol-gel dip coating method with different number of layers of film (1 – 4 layers), different annealing tempera...

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Main Author: Deraman, Shahirah
Format: Thesis
Language:English
Published: 2019
Subjects:
QC Physics
Online Access:http://eprints.utm.my/id/eprint/101862/1/ShahirahDeramanMFS2019.pdf.pdf
http://eprints.utm.my/id/eprint/101862/
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spelling my.utm.1018622023-07-13T02:00:52Z http://eprints.utm.my/id/eprint/101862/ Growth and structural characterization of lanthanum-strontium-cobalt thin film synthesized by sol-gel dip coating for solid oxide fuel cell Deraman, Shahirah QC Physics The porosity of a solid oxide fuel cell (SOFC) cathode made of lanthanum-strontium-cobalt (LSC) has not been addressed sufficiently. The LSC thin films were deposited on glass substrates by sol-gel dip coating method with different number of layers of film (1 – 4 layers), different annealing temperatures (400 – 600 ºC) at 100 ºC temperature intervals, and different solution temperatures (30 – 60 ºC) at 10 ºC temperature intervals. The dip coating solution was prepared using 40 ml of ethanol, 1 g LSC powder and 0.07 g polyvinyl alcohol (PVA). The structural properties of SOFC cathode were characterized using X-ray diffraction and Fourier transform infrared spectrophotometer. The morphology of SOFC cathode was determined using atomic force microscope and field emission scanning electron microscope. The elemental compositions of LSC films were confirmed using energy dispersive X-ray spectroscopy. The X-ray diffraction results showed that crystalline temperature of LSC was 500 ºC and crystallite size decreased as annealing temperature increased. From the atomic force microscope and field emission scanning electron microscope analysis, the LSC film became smoother as number of layers and annealing temperature increased. Fourier transformed infrared spectrophotometer results showed presence of metal-oxygen bonds at 447 cm-1 and 916 cm-1 which correspond to Co-O, Sr-O, La-O bonding at solution temperature 30 ºC. Hence, it can be concluded that annealing and solution temperature plays vital role in producing high quality LSC thin films. 2019 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/101862/1/ShahirahDeramanMFS2019.pdf.pdf Deraman, Shahirah (2019) Growth and structural characterization of lanthanum-strontium-cobalt thin film synthesized by sol-gel dip coating for solid oxide fuel cell. Masters thesis, Universiti Teknologi Malaysia. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:146175
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic QC Physics
spellingShingle QC Physics
Deraman, Shahirah
Growth and structural characterization of lanthanum-strontium-cobalt thin film synthesized by sol-gel dip coating for solid oxide fuel cell
description The porosity of a solid oxide fuel cell (SOFC) cathode made of lanthanum-strontium-cobalt (LSC) has not been addressed sufficiently. The LSC thin films were deposited on glass substrates by sol-gel dip coating method with different number of layers of film (1 – 4 layers), different annealing temperatures (400 – 600 ºC) at 100 ºC temperature intervals, and different solution temperatures (30 – 60 ºC) at 10 ºC temperature intervals. The dip coating solution was prepared using 40 ml of ethanol, 1 g LSC powder and 0.07 g polyvinyl alcohol (PVA). The structural properties of SOFC cathode were characterized using X-ray diffraction and Fourier transform infrared spectrophotometer. The morphology of SOFC cathode was determined using atomic force microscope and field emission scanning electron microscope. The elemental compositions of LSC films were confirmed using energy dispersive X-ray spectroscopy. The X-ray diffraction results showed that crystalline temperature of LSC was 500 ºC and crystallite size decreased as annealing temperature increased. From the atomic force microscope and field emission scanning electron microscope analysis, the LSC film became smoother as number of layers and annealing temperature increased. Fourier transformed infrared spectrophotometer results showed presence of metal-oxygen bonds at 447 cm-1 and 916 cm-1 which correspond to Co-O, Sr-O, La-O bonding at solution temperature 30 ºC. Hence, it can be concluded that annealing and solution temperature plays vital role in producing high quality LSC thin films.
format Thesis
author Deraman, Shahirah
author_facet Deraman, Shahirah
author_sort Deraman, Shahirah
title Growth and structural characterization of lanthanum-strontium-cobalt thin film synthesized by sol-gel dip coating for solid oxide fuel cell
title_short Growth and structural characterization of lanthanum-strontium-cobalt thin film synthesized by sol-gel dip coating for solid oxide fuel cell
title_full Growth and structural characterization of lanthanum-strontium-cobalt thin film synthesized by sol-gel dip coating for solid oxide fuel cell
title_fullStr Growth and structural characterization of lanthanum-strontium-cobalt thin film synthesized by sol-gel dip coating for solid oxide fuel cell
title_full_unstemmed Growth and structural characterization of lanthanum-strontium-cobalt thin film synthesized by sol-gel dip coating for solid oxide fuel cell
title_sort growth and structural characterization of lanthanum-strontium-cobalt thin film synthesized by sol-gel dip coating for solid oxide fuel cell
publishDate 2019
url http://eprints.utm.my/id/eprint/101862/1/ShahirahDeramanMFS2019.pdf.pdf
http://eprints.utm.my/id/eprint/101862/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:146175
_version_ 1772811123322519552
score 13.211869

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