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Evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells
Includes bibliographical references.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Department of Chemical Engineering
2015
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| _version_ | 1867613159672512513 |
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| access_status_str | Open Access |
| author | Khoza, Thulile P |
| author2 | Blair, Sharon |
| author_browse | Blair, Sharon Khoza, Thulile P |
| author_facet | Blair, Sharon Khoza, Thulile P |
| author_sort | Khoza, Thulile P |
| collection | Thesis |
| description | Includes bibliographical references. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/13376 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:31:43.046Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| 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:11427/13376 Evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells Khoza, Thulile P Blair, Sharon Levecque, Pieter B J Chemical Engineering Includes bibliographical references. Polymer electrolyte fuel cells (PEFCs) have wide variety of commercial applications, however due to poor durability and high cost, this technology has currently not reached its commercialization stage. Poor durability is mainly attributed to carbon support corrosion during start-up and shut-down of the fuel cell. Corrosion of the electrocatalyst support materials has numerous adverse effects on the performance of the fuel cell, such as weakening of metal-support interaction which results in Pt detachment, dissolution and sintering. Hence, the electrochemical active surface area is significantly reduced. It is clear that there is an urgent need for more robust, high performance alternative support materials to carbon. In this study, metal nitrides and borides (TiN, ZrN, TiB₂ , ZrB₂ and LaB₆) were evaluated as potential support materials, in an attempt to improve the durability and performance of PEFCs. 2015-07-03T10:34:17Z 2015-07-03T10:34:17Z 2014 Master Thesis Masters MSc (Eng) http://hdl.handle.net/11427/13376 eng application/pdf Department of Chemical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Chemical Engineering Khoza, Thulile P Evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells |
| thesis_degree_str | Master's |
| title | Evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells |
| title_full | Evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells |
| title_fullStr | Evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells |
| title_full_unstemmed | Evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells |
| title_short | Evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells |
| title_sort | evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells |
| topic | Chemical Engineering |
| url | http://hdl.handle.net/11427/13376 |
| work_keys_str_mv | AT khozathulilep evaluationofmetalnitridesandboridesasalternativeelectrocatalystsupportmaterialsforpolymerelectrolytefuelcells |