Cover Image

Structural characteristics of pore former assisted cathode layer in micro-tubular solid oxide fuel cell

The cathode performance of solid oxide fuel cell (SOFC) depends substantially on its surface area, porosity and microstructure, and therefore the processing method is very important in determining cathode performance. By improving the structural characteristics of the layer, the cathode performance...

Full description

Saved in:
Bibliographic Details
Main Author: Abd. Mutalib, Muhazri
Format: Thesis
Language:English
Published: 2015
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/78250/1/MuhazriAbdMutalibMFPREE2015.pdf
http://eprints.utm.my/id/eprint/78250/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:105046
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utm.78250
record_format eprints
spelling my.utm.782502018-08-03T08:49:33Z http://eprints.utm.my/id/eprint/78250/ Structural characteristics of pore former assisted cathode layer in micro-tubular solid oxide fuel cell Abd. Mutalib, Muhazri TP Chemical technology The cathode performance of solid oxide fuel cell (SOFC) depends substantially on its surface area, porosity and microstructure, and therefore the processing method is very important in determining cathode performance. By improving the structural characteristics of the layer, the cathode performance during fuel cell operation can be fully maximized. This study aims to improve the porosity and pore structure of the cathode deposited layer of micro-tubular SOFC (MT-SOFC) by inducing pores with pore formers. Three types of pore formers have been used to investigate the formation of induced pores in the cathode layer of SOFC, which are polyether ether ketone (PEEK), corn starch and graphite. Each pore former chosen in this study possesses different particle geometry in order to produce distinct pore geometry in the cathode layer. The cathode layer was brush painted on an anode/electrolyte dual layer support hollow fibre that had been previously sintered at 1500°C for 12 hours. The coated cathode consists of three layered coats, with functional layer as the first two layers followed by a current collector layer on the last coat. After the deposition of cathode layer, it is sintered at 1200°C for 5 hours. The study divides the characterization into three main parts; pore former geometry identification, pore former behavior in lanthanum strontium cobalt ferrite (LSCF) powder and pore former in LSCF as solid oxide layer. PEEK was able to produce pores that promote both fine microstructures for triple phase boundary generation and porous structure for efficient diffusion of gases. The increase in pore former loading has increased the porosity and decreased the grain size, but at the expense of decreasing mechanical strength of the fuel cell. 2015-09 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/78250/1/MuhazriAbdMutalibMFPREE2015.pdf Abd. Mutalib, Muhazri (2015) Structural characteristics of pore former assisted cathode layer in micro-tubular solid oxide fuel cell. Masters thesis, Universiti Teknologi Malaysia, Faculty of Petroleum and Renewable Energy Engineering. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:105046
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 TP Chemical technology
spellingShingle TP Chemical technology
Abd. Mutalib, Muhazri
Structural characteristics of pore former assisted cathode layer in micro-tubular solid oxide fuel cell
description The cathode performance of solid oxide fuel cell (SOFC) depends substantially on its surface area, porosity and microstructure, and therefore the processing method is very important in determining cathode performance. By improving the structural characteristics of the layer, the cathode performance during fuel cell operation can be fully maximized. This study aims to improve the porosity and pore structure of the cathode deposited layer of micro-tubular SOFC (MT-SOFC) by inducing pores with pore formers. Three types of pore formers have been used to investigate the formation of induced pores in the cathode layer of SOFC, which are polyether ether ketone (PEEK), corn starch and graphite. Each pore former chosen in this study possesses different particle geometry in order to produce distinct pore geometry in the cathode layer. The cathode layer was brush painted on an anode/electrolyte dual layer support hollow fibre that had been previously sintered at 1500°C for 12 hours. The coated cathode consists of three layered coats, with functional layer as the first two layers followed by a current collector layer on the last coat. After the deposition of cathode layer, it is sintered at 1200°C for 5 hours. The study divides the characterization into three main parts; pore former geometry identification, pore former behavior in lanthanum strontium cobalt ferrite (LSCF) powder and pore former in LSCF as solid oxide layer. PEEK was able to produce pores that promote both fine microstructures for triple phase boundary generation and porous structure for efficient diffusion of gases. The increase in pore former loading has increased the porosity and decreased the grain size, but at the expense of decreasing mechanical strength of the fuel cell.
format Thesis
author Abd. Mutalib, Muhazri
author_facet Abd. Mutalib, Muhazri
author_sort Abd. Mutalib, Muhazri
title Structural characteristics of pore former assisted cathode layer in micro-tubular solid oxide fuel cell
title_short Structural characteristics of pore former assisted cathode layer in micro-tubular solid oxide fuel cell
title_full Structural characteristics of pore former assisted cathode layer in micro-tubular solid oxide fuel cell
title_fullStr Structural characteristics of pore former assisted cathode layer in micro-tubular solid oxide fuel cell
title_full_unstemmed Structural characteristics of pore former assisted cathode layer in micro-tubular solid oxide fuel cell
title_sort structural characteristics of pore former assisted cathode layer in micro-tubular solid oxide fuel cell
publishDate 2015
url http://eprints.utm.my/id/eprint/78250/1/MuhazriAbdMutalibMFPREE2015.pdf
http://eprints.utm.my/id/eprint/78250/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:105046
_version_ 1643657841188274176
score 13.211869

Similar Items