Nanostructured metal sulfides electrocatalyst for oxygen evolution reaction

The demand for energy so far has only been at an increasing rate, and this can be accounted for due to the rising population of the world. However, methods to meet the energy demand of the world has always deteriorated the environment. Such methods are not sustainable and other alternatives needs to...

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Main Author: Willson Nicholas
Other Authors: Alex Yan Qingyu
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2020
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Online Access:https://hdl.handle.net/10356/138488
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-1384882023-03-04T15:43:56Z Nanostructured metal sulfides electrocatalyst for oxygen evolution reaction Willson Nicholas Alex Yan Qingyu School of Materials Science and Engineering alexyan@ntu.edu.sg Engineering::Materials::Nanostructured materials The demand for energy so far has only been at an increasing rate, and this can be accounted for due to the rising population of the world. However, methods to meet the energy demand of the world has always deteriorated the environment. Such methods are not sustainable and other alternatives needs to be established to harness and store energy. One such way is to split water into hydrogen and oxygen. Hydrogen has really huge potential energy that one can utilize to harness energy. Combusting hydrogen to generate energy results in water byproduct, which is also environmentally friendly. However, one of the major drawbacks of obtaining hydrogen gas from water splitting is that the oxygen evolution reaction has high overpotential. This becomes a bottleneck to the overall efficiency of the reaction. To reduce the overpotential required, electrocatalyst is required. Various literatures have reported the use of IrO2 and RuO2 as the electrocatalysts for oxygen evolution reaction, however Ir and Ru are both rare earth metals and procuring them is costly. In this report, the author proposes nanostructured metal sulfides as the alternatives. The metal sulfides electrocatalysts will be synthesized in a laboratory and their performances will be evaluated using linear sweep voltammetry (LSV) and cyclic voltammetry (CV). Moreover, physico-chemical characterization of the electrocatalysts using x-ray diffraction (XRD) technique and scanning electron microscopy (SEM) will be done to observe their morphologies and analyze their elemental composition. Bachelor of Engineering (Materials Engineering) 2020-05-06T12:10:35Z 2020-05-06T12:10:35Z 2020 Final Year Project (FYP) https://hdl.handle.net/10356/138488 en application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Materials::Nanostructured materials
spellingShingle Engineering::Materials::Nanostructured materials
Willson Nicholas
Nanostructured metal sulfides electrocatalyst for oxygen evolution reaction
description The demand for energy so far has only been at an increasing rate, and this can be accounted for due to the rising population of the world. However, methods to meet the energy demand of the world has always deteriorated the environment. Such methods are not sustainable and other alternatives needs to be established to harness and store energy. One such way is to split water into hydrogen and oxygen. Hydrogen has really huge potential energy that one can utilize to harness energy. Combusting hydrogen to generate energy results in water byproduct, which is also environmentally friendly. However, one of the major drawbacks of obtaining hydrogen gas from water splitting is that the oxygen evolution reaction has high overpotential. This becomes a bottleneck to the overall efficiency of the reaction. To reduce the overpotential required, electrocatalyst is required. Various literatures have reported the use of IrO2 and RuO2 as the electrocatalysts for oxygen evolution reaction, however Ir and Ru are both rare earth metals and procuring them is costly. In this report, the author proposes nanostructured metal sulfides as the alternatives. The metal sulfides electrocatalysts will be synthesized in a laboratory and their performances will be evaluated using linear sweep voltammetry (LSV) and cyclic voltammetry (CV). Moreover, physico-chemical characterization of the electrocatalysts using x-ray diffraction (XRD) technique and scanning electron microscopy (SEM) will be done to observe their morphologies and analyze their elemental composition.
author2 Alex Yan Qingyu
author_facet Alex Yan Qingyu
Willson Nicholas
format Final Year Project
author Willson Nicholas
author_sort Willson Nicholas
title Nanostructured metal sulfides electrocatalyst for oxygen evolution reaction
title_short Nanostructured metal sulfides electrocatalyst for oxygen evolution reaction
title_full Nanostructured metal sulfides electrocatalyst for oxygen evolution reaction
title_fullStr Nanostructured metal sulfides electrocatalyst for oxygen evolution reaction
title_full_unstemmed Nanostructured metal sulfides electrocatalyst for oxygen evolution reaction
title_sort nanostructured metal sulfides electrocatalyst for oxygen evolution reaction
publisher Nanyang Technological University
publishDate 2020
url https://hdl.handle.net/10356/138488
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