Electrocatalytic synthesis of ammonia under ambient conditions with Ru@Co₃O₄ nanowires as electrocatalyst
Ammonia production is essential for agriculture and chemical industry but the current industrial Haber-Bosch process is energy-intensive and emits much greenhouse gases. Electrochemical methods, like nitrogen reduction reaction (NRR), have potential as an alternative, but are limited by low yield an...
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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/10356/166691 |
| _version_ | 1826124276384661504 |
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| author | Thiha, Myo Minn |
| author2 | Alex Yan Qingyu |
| author_facet | Alex Yan Qingyu Thiha, Myo Minn |
| author_sort | Thiha, Myo Minn |
| collection | NTU |
| description | Ammonia production is essential for agriculture and chemical industry but the current industrial Haber-Bosch process is energy-intensive and emits much greenhouse gases. Electrochemical methods, like nitrogen reduction reaction (NRR), have potential as an alternative, but are limited by low yield and efficiency. Nitrate ions offer a promising alternative due to their better reaction kinetics and lower dissociation energy for ammonia synthesis, with economic and environmental benefits as they are a common water pollutant.
This project aims to investigate Ru@Co3O4 nanowires as an electrocatalyst for sustainable ammonia synthesis and also to optimise the concentrations of Ru addition. The results indicate that 4mM Ru@Co3O4 nanowires have comparable performance for nitrate reduction to other reported electrocatalysts, achieving approximately 88% Faradaic Efficiency at -0.4V vs RHE and ammonia yield of around 3930 micrograms/hcm2 at - 0.6V vs RHE. Therefore, the results of this study provide a promising foundation for the development of high-performance electrocatalysts to mitigate the issues associated with current ammonia production methods. |
| first_indexed | 2024-10-01T06:18:00Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/166691 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:18:00Z |
| publishDate | 2023 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1666912023-05-13T16:46:39Z Electrocatalytic synthesis of ammonia under ambient conditions with Ru@Co₃O₄ nanowires as electrocatalyst Thiha, Myo Minn Alex Yan Qingyu School of Materials Science and Engineering AlexYan@ntu.edu.sg Engineering::Nanotechnology Ammonia production is essential for agriculture and chemical industry but the current industrial Haber-Bosch process is energy-intensive and emits much greenhouse gases. Electrochemical methods, like nitrogen reduction reaction (NRR), have potential as an alternative, but are limited by low yield and efficiency. Nitrate ions offer a promising alternative due to their better reaction kinetics and lower dissociation energy for ammonia synthesis, with economic and environmental benefits as they are a common water pollutant. This project aims to investigate Ru@Co3O4 nanowires as an electrocatalyst for sustainable ammonia synthesis and also to optimise the concentrations of Ru addition. The results indicate that 4mM Ru@Co3O4 nanowires have comparable performance for nitrate reduction to other reported electrocatalysts, achieving approximately 88% Faradaic Efficiency at -0.4V vs RHE and ammonia yield of around 3930 micrograms/hcm2 at - 0.6V vs RHE. Therefore, the results of this study provide a promising foundation for the development of high-performance electrocatalysts to mitigate the issues associated with current ammonia production methods. Bachelor of Engineering (Materials Engineering) 2023-05-09T04:50:27Z 2023-05-09T04:50:27Z 2023 Final Year Project (FYP) Thiha, M. M. (2023). Electrocatalytic synthesis of ammonia under ambient conditions with Ru@Co₃O₄ nanowires as electrocatalyst. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/166691 https://hdl.handle.net/10356/166691 en application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Nanotechnology Thiha, Myo Minn Electrocatalytic synthesis of ammonia under ambient conditions with Ru@Co₃O₄ nanowires as electrocatalyst |
| title | Electrocatalytic synthesis of ammonia under ambient conditions with Ru@Co₃O₄ nanowires as electrocatalyst |
| title_full | Electrocatalytic synthesis of ammonia under ambient conditions with Ru@Co₃O₄ nanowires as electrocatalyst |
| title_fullStr | Electrocatalytic synthesis of ammonia under ambient conditions with Ru@Co₃O₄ nanowires as electrocatalyst |
| title_full_unstemmed | Electrocatalytic synthesis of ammonia under ambient conditions with Ru@Co₃O₄ nanowires as electrocatalyst |
| title_short | Electrocatalytic synthesis of ammonia under ambient conditions with Ru@Co₃O₄ nanowires as electrocatalyst |
| title_sort | electrocatalytic synthesis of ammonia under ambient conditions with ru co₃o₄ nanowires as electrocatalyst |
| topic | Engineering::Nanotechnology |
| url | https://hdl.handle.net/10356/166691 |
| work_keys_str_mv | AT thihamyominn electrocatalyticsynthesisofammoniaunderambientconditionswithruco3o4nanowiresaselectrocatalyst |