In-Situ X-RAY diffraction studies for the LaSrFeO3-Ba(Ce,Zr)O3 cathode composite / Muhammad Adlan Faris Nor Azizan

In-Situ X-RAY diffraction studies for the LaSrFeO3-Ba(Ce,Zr)O3 cathode composite / Muhammad Adlan Faris Nor Azizan

Owing to its high-power performance, solid oxide fuel cell (SOFC) is highly efficient in energy production. However, its high operation temperatures ranging from 800℃ to 1000℃ increase the cost which prevents its applications from expanding. Proton conducting fuel cell (PCFC) was developed, as it ca...

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Main Author: Nor Azizan, Muhammad Adlan Faris
Format: Thesis
Language:English
Published: 2021
Subjects:
Thermal conductivity
Force and energy
Online Access:https://ir.uitm.edu.my/id/eprint/49648/1/49648.pdf
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spelling my-uitm-ir.496482021-10-28T01:00:37Z In-Situ X-RAY diffraction studies for the LaSrFeO3-Ba(Ce,Zr)O3 cathode composite / Muhammad Adlan Faris Nor Azizan 2021-08-17 Nor Azizan, Muhammad Adlan Faris Thermal conductivity Force and energy Owing to its high-power performance, solid oxide fuel cell (SOFC) is highly efficient in energy production. However, its high operation temperatures ranging from 800℃ to 1000℃ increase the cost which prevents its applications from expanding. Proton conducting fuel cell (PCFC) was developed, as it can work at intermediate temperature ranging from 400℃ to 800℃. Due to reduced activation energy and comparatively elevated proton conductivity at intermediate temperature, PCFC can boost durability and performance. In this study, La0.6Sr0.4Co0.2Fe0.8O3-δ–BaCe0.54Zr0.36Y0.1O3-δ (LSCF-BCZY) was used as composite cathode. By using the Rietveld refinement method, the structure parameters of LSCF-BCZY were determined at different temperatures from room temperature to 700℃, resulting in fulfilment of the phase refinement requirement. The goodness of fit fill the necessity below four. The materials’ XRD shows orthorhombic crystal symmetry for LSCF and cubic crystal symmetry for BCZY with space group Pbnm (the name indicates a primitive lattice with b-glide plane perpendicular to the x-axis, n-glide plane perpendicular to the y-axis and mirror plane perpendicular to the z-axis) and Pm-3m (the name refers a primitive lattice with mirror plane perpendicular to x-axis, y-axis and z-axis, them threefold symmetry of body diagonals), respectively. Other structural studies have been using the Rietveld refinement process, such as space group, lattice parameters and crystal structure. All the properties studied here suggest it may be a promising candidate of cathode at intermediate temperature for PCFC. 2021-08 Thesis https://ir.uitm.edu.my/id/eprint/49648/ https://ir.uitm.edu.my/id/eprint/49648/1/49648.pdf text en public degree Universiti Teknologi Mara Perlis Faculty of Applied Sciences
institution Universiti Teknologi MARA
collection UiTM Institutional Repository
language English
topic Thermal conductivity
Force and energy
spellingShingle Thermal conductivity
Force and energy
Nor Azizan, Muhammad Adlan Faris
In-Situ X-RAY diffraction studies for the LaSrFeO3-Ba(Ce,Zr)O3 cathode composite / Muhammad Adlan Faris Nor Azizan
description Owing to its high-power performance, solid oxide fuel cell (SOFC) is highly efficient in energy production. However, its high operation temperatures ranging from 800℃ to 1000℃ increase the cost which prevents its applications from expanding. Proton conducting fuel cell (PCFC) was developed, as it can work at intermediate temperature ranging from 400℃ to 800℃. Due to reduced activation energy and comparatively elevated proton conductivity at intermediate temperature, PCFC can boost durability and performance. In this study, La0.6Sr0.4Co0.2Fe0.8O3-δ–BaCe0.54Zr0.36Y0.1O3-δ (LSCF-BCZY) was used as composite cathode. By using the Rietveld refinement method, the structure parameters of LSCF-BCZY were determined at different temperatures from room temperature to 700℃, resulting in fulfilment of the phase refinement requirement. The goodness of fit fill the necessity below four. The materials’ XRD shows orthorhombic crystal symmetry for LSCF and cubic crystal symmetry for BCZY with space group Pbnm (the name indicates a primitive lattice with b-glide plane perpendicular to the x-axis, n-glide plane perpendicular to the y-axis and mirror plane perpendicular to the z-axis) and Pm-3m (the name refers a primitive lattice with mirror plane perpendicular to x-axis, y-axis and z-axis, them threefold symmetry of body diagonals), respectively. Other structural studies have been using the Rietveld refinement process, such as space group, lattice parameters and crystal structure. All the properties studied here suggest it may be a promising candidate of cathode at intermediate temperature for PCFC.
format Thesis
qualification_level Bachelor degree
author Nor Azizan, Muhammad Adlan Faris
author_facet Nor Azizan, Muhammad Adlan Faris
author_sort Nor Azizan, Muhammad Adlan Faris
title In-Situ X-RAY diffraction studies for the LaSrFeO3-Ba(Ce,Zr)O3 cathode composite / Muhammad Adlan Faris Nor Azizan
title_short In-Situ X-RAY diffraction studies for the LaSrFeO3-Ba(Ce,Zr)O3 cathode composite / Muhammad Adlan Faris Nor Azizan
title_full In-Situ X-RAY diffraction studies for the LaSrFeO3-Ba(Ce,Zr)O3 cathode composite / Muhammad Adlan Faris Nor Azizan
title_fullStr In-Situ X-RAY diffraction studies for the LaSrFeO3-Ba(Ce,Zr)O3 cathode composite / Muhammad Adlan Faris Nor Azizan
title_full_unstemmed In-Situ X-RAY diffraction studies for the LaSrFeO3-Ba(Ce,Zr)O3 cathode composite / Muhammad Adlan Faris Nor Azizan
title_sort in-situ x-ray diffraction studies for the lasrfeo3-ba(ce,zr)o3 cathode composite / muhammad adlan faris nor azizan
granting_institution Universiti Teknologi Mara Perlis
granting_department Faculty of Applied Sciences
publishDate 2021
url https://ir.uitm.edu.my/id/eprint/49648/1/49648.pdf
_version_ 1783734806361669632

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