Evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells

Simple item page
dc.contributor.advisorBlair, Sharonen_ZA
dc.contributor.advisorLevecque, Pieter B Jen_ZA
dc.contributor.authorKhoza, Thulile Pen_ZA
dc.date.accessioned2015-07-03T10:34:17Z
dc.date.available2015-07-03T10:34:17Z
dc.date.issued2014en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractPolymer 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.en_ZA
dc.identifier.apacitationKhoza, T. P. (2014). <i>Evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering. Retrieved from http://hdl.handle.net/11427/13376en_ZA
dc.identifier.chicagocitationKhoza, Thulile P. <i>"Evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 2014. http://hdl.handle.net/11427/13376en_ZA
dc.identifier.citationKhoza, T. 2014. Evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Khoza, Thulile P AB - 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, TiB&#8322; , ZrB&#8322; and LaB&#8326;) were evaluated as potential support materials, in an attempt to improve the durability and performance of PEFCs. DA - 2014 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2014 T1 - Evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells TI - Evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells UR - http://hdl.handle.net/11427/13376 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/13376
dc.identifier.vancouvercitationKhoza TP. Evaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cells. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 2014 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/13376en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Chemical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherChemical Engineeringen_ZA
dc.titleEvaluation of metal nitrides and borides as alternative electrocatalyst support materials for polymer electrolyte fuel cellsen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMSc (Eng)en_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
thesis_ebe_2014_khoza_tp.pdf
Size:
3.23 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Masters