Understanding the process of sulphurisation from nano-mixed copper and silver nanoparticles
The reduction of carbon dioxide to create valuable multi-carbon products through electrochemistry is an appealing method for sustainable energy storage and reducing greenhouse gas emissions. Copper is the only known catalyst made of a single element that can produce various hydrocarbon and oxygenate...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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Nanyang Technological University
2023
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| Online Access: | https://hdl.handle.net/10356/165702 |
| _version_ | 1811680014447411200 |
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| author | Teo, Alvin Yong Ler |
| author2 | Kedar Hippalgaonkar |
| author_facet | Kedar Hippalgaonkar Teo, Alvin Yong Ler |
| author_sort | Teo, Alvin Yong Ler |
| collection | NTU |
| description | The reduction of carbon dioxide to create valuable multi-carbon products through electrochemistry is an appealing method for sustainable energy storage and reducing greenhouse gas emissions. Copper is the only known catalyst made of a single element that can produce various hydrocarbon and oxygenate products, including ethanol and ethylene. Recent studies have shown that nanostructured copper-silver alloys have even higher activity and selectivity towards multi-carbon production while suppressing hydrogen evolution.
Therefore, precise control of the nanoscale alloying process between copper and silver is critical in optimizing copper/silver binary electrocatalysts. To achieve this, low-temperature annealing of copper and silver nanoparticles was performed to control the process. The study attempted to probe the diffusion behaviour of the catalysts at different temperatures. We found that copper and silver can form stable complete solid solutions at room temperature, as well as Janus particles that exhibit properties of both metals. |
| first_indexed | 2024-10-01T03:18:19Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/165702 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:18:19Z |
| publishDate | 2023 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1657022023-04-15T16:45:44Z Understanding the process of sulphurisation from nano-mixed copper and silver nanoparticles Teo, Alvin Yong Ler Kedar Hippalgaonkar School of Materials Science and Engineering kedar@ntu.edu.sg Engineering::Materials::Nanostructured materials The reduction of carbon dioxide to create valuable multi-carbon products through electrochemistry is an appealing method for sustainable energy storage and reducing greenhouse gas emissions. Copper is the only known catalyst made of a single element that can produce various hydrocarbon and oxygenate products, including ethanol and ethylene. Recent studies have shown that nanostructured copper-silver alloys have even higher activity and selectivity towards multi-carbon production while suppressing hydrogen evolution. Therefore, precise control of the nanoscale alloying process between copper and silver is critical in optimizing copper/silver binary electrocatalysts. To achieve this, low-temperature annealing of copper and silver nanoparticles was performed to control the process. The study attempted to probe the diffusion behaviour of the catalysts at different temperatures. We found that copper and silver can form stable complete solid solutions at room temperature, as well as Janus particles that exhibit properties of both metals. Bachelor of Engineering (Materials Engineering) 2023-04-10T05:44:26Z 2023-04-10T05:44:26Z 2023 Final Year Project (FYP) Teo, A. Y. L. (2023). Understanding the process of sulphurisation from nano-mixed copper and silver nanoparticles. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/165702 https://hdl.handle.net/10356/165702 en application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Materials::Nanostructured materials Teo, Alvin Yong Ler Understanding the process of sulphurisation from nano-mixed copper and silver nanoparticles |
| title | Understanding the process of sulphurisation from nano-mixed copper and silver nanoparticles |
| title_full | Understanding the process of sulphurisation from nano-mixed copper and silver nanoparticles |
| title_fullStr | Understanding the process of sulphurisation from nano-mixed copper and silver nanoparticles |
| title_full_unstemmed | Understanding the process of sulphurisation from nano-mixed copper and silver nanoparticles |
| title_short | Understanding the process of sulphurisation from nano-mixed copper and silver nanoparticles |
| title_sort | understanding the process of sulphurisation from nano mixed copper and silver nanoparticles |
| topic | Engineering::Materials::Nanostructured materials |
| url | https://hdl.handle.net/10356/165702 |
| work_keys_str_mv | AT teoalvinyongler understandingtheprocessofsulphurisationfromnanomixedcopperandsilvernanoparticles |