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Selective methanation of CO in H2-rich gas using Pd/TiO2, Ni/TiO2 and PdNi/TiO2 catalysts
Hydrogen fuel cells are renowned for their ability to produce minimal or negligible levels of harmful greenhouse emissions, making them pivotal in mitigating climate change. Hydrogen is a versatile energy carrier that can replace petroleum in various energy applications. During hydrogen production,...
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| Format: | Thesis |
| Language: | English English |
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Department of Chemical Engineering
2025
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| _version_ | 1867614114865479680 |
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| access_status_str | Open Access |
| author | Mtemeli, Patronella Siphatisiwe |
| author2 | Kooyman, Patricia J |
| author_browse | Kooyman, Patricia J Mtemeli, Patronella Siphatisiwe |
| author_facet | Kooyman, Patricia J Mtemeli, Patronella Siphatisiwe |
| author_sort | Mtemeli, Patronella Siphatisiwe |
| collection | Thesis |
| description | Hydrogen fuel cells are renowned for their ability to produce minimal or negligible levels of harmful greenhouse emissions, making them pivotal in mitigating climate change. Hydrogen is a versatile energy carrier that can replace petroleum in various energy applications. During hydrogen production, the reformate gas contains a significant amount of carbon monoxide, about 10-60%, which is reduced to about <1% by a two-stage water gas shift reaction. To optimise the performance of fuel cells, it is imperative to reduce CO levels to below 10 ppm, as higher concentrations can compromise the electrochemical functionality of platinum anodes. Therefore, there exists a need to develop an efficient and cost-effective catalyst with a wide temperature window for CO-SMET to reduce the concentration of CO to the desired concentration. This study reports the synthesis of Pd/TiO2, Ni/TiO2 and PdNi/TiO2 catalysts for CO-SMET in H2 gas through wet impregnation and polyol methods. The structural characterisation of the catalys |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/41104 |
| institution | University of Cape Town (South Africa) |
| language | English eng |
| last_indexed | 2026-06-10T12:46:54.305Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Department of Chemical Engineering |
| publisherStr | Department of Chemical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/41104 Selective methanation of CO in H2-rich gas using Pd/TiO2, Ni/TiO2 and PdNi/TiO2 catalysts Mtemeli, Patronella Siphatisiwe Kooyman, Patricia J Engineering Hydrogen fuel cells are renowned for their ability to produce minimal or negligible levels of harmful greenhouse emissions, making them pivotal in mitigating climate change. Hydrogen is a versatile energy carrier that can replace petroleum in various energy applications. During hydrogen production, the reformate gas contains a significant amount of carbon monoxide, about 10-60%, which is reduced to about <1% by a two-stage water gas shift reaction. To optimise the performance of fuel cells, it is imperative to reduce CO levels to below 10 ppm, as higher concentrations can compromise the electrochemical functionality of platinum anodes. Therefore, there exists a need to develop an efficient and cost-effective catalyst with a wide temperature window for CO-SMET to reduce the concentration of CO to the desired concentration. This study reports the synthesis of Pd/TiO2, Ni/TiO2 and PdNi/TiO2 catalysts for CO-SMET in H2 gas through wet impregnation and polyol methods. The structural characterisation of the catalys 2025-03-04T13:40:07Z 2025-03-04T13:40:07Z 2024 2025-03-04T13:32:59Z Thesis / Dissertation Masters MSc http://hdl.handle.net/11427/41104 en eng application/pdf Department of Chemical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Engineering Mtemeli, Patronella Siphatisiwe Selective methanation of CO in H2-rich gas using Pd/TiO2, Ni/TiO2 and PdNi/TiO2 catalysts |
| thesis_degree_str | Master's |
| title | Selective methanation of CO in H2-rich gas using Pd/TiO2, Ni/TiO2 and PdNi/TiO2 catalysts |
| title_full | Selective methanation of CO in H2-rich gas using Pd/TiO2, Ni/TiO2 and PdNi/TiO2 catalysts |
| title_fullStr | Selective methanation of CO in H2-rich gas using Pd/TiO2, Ni/TiO2 and PdNi/TiO2 catalysts |
| title_full_unstemmed | Selective methanation of CO in H2-rich gas using Pd/TiO2, Ni/TiO2 and PdNi/TiO2 catalysts |
| title_short | Selective methanation of CO in H2-rich gas using Pd/TiO2, Ni/TiO2 and PdNi/TiO2 catalysts |
| title_sort | selective methanation of co in h2 rich gas using pd tio2 ni tio2 and pdni tio2 catalysts |
| topic | Engineering |
| url | http://hdl.handle.net/11427/41104 |
| work_keys_str_mv | AT mtemelipatronellasiphatisiwe selectivemethanationofcoinh2richgasusingpdtio2nitio2andpdnitio2catalysts |