AuPt nano-alloys as reduction promoters for Co/TiO₂ Fischer-Tropsch catalysts

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dc.contributor.advisorVan Steen, Ericen_ZA
dc.contributor.advisorClaeys, Michaelen_ZA
dc.contributor.authorKunene, Avelaen_ZA
dc.date.accessioned2015-07-03T10:34:15Z
dc.date.available2015-07-03T10:34:15Z
dc.date.issued2014en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractCobalt-based catalysts for the Fischer-Tropsch synthesis are typically promoted with noble metals to achieve a more facile reduction of Co₃O₄ to the catalytically active metal, Co⁰. Hydrogen spillover is thought to be the dominant mechanism for the functioning of noble metals during the reduction process. Platinum is a well-known reduction promoter and its functioning as a reduction promoter is thought to occur via H₂ - spillover mechanism. This process is switched off during the Fischer-Tropsch synthesis, when platinum is used as a reduction promoter, since platinum has been shown to be catalytically inert under these conditions, due to strong adsorption of CO. Some hydrogen spill-over during the Fischer-Tropsch synthesis might be desired to obtain more stable catalysts (less coking), but this effect has to be balanced against increased methanation activity.en_ZA
dc.identifier.apacitationKunene, A. (2014). <i>AuPt nano-alloys as reduction promoters for Co/TiO&#8322; Fischer-Tropsch catalysts</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering. Retrieved from http://hdl.handle.net/11427/13375en_ZA
dc.identifier.chicagocitationKunene, Avela. <i>"AuPt nano-alloys as reduction promoters for Co/TiO&#8322; Fischer-Tropsch catalysts."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 2014. http://hdl.handle.net/11427/13375en_ZA
dc.identifier.citationKunene, A. 2014. AuPt nano-alloys as reduction promoters for Co/TiO&#8322; Fischer-Tropsch catalysts. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Kunene, Avela AB - Cobalt-based catalysts for the Fischer-Tropsch synthesis are typically promoted with noble metals to achieve a more facile reduction of Co&#8323;O&#8324; to the catalytically active metal, Co&#8304;. Hydrogen spillover is thought to be the dominant mechanism for the functioning of noble metals during the reduction process. Platinum is a well-known reduction promoter and its functioning as a reduction promoter is thought to occur via H&#8322; - spillover mechanism. This process is switched off during the Fischer-Tropsch synthesis, when platinum is used as a reduction promoter, since platinum has been shown to be catalytically inert under these conditions, due to strong adsorption of CO. Some hydrogen spill-over during the Fischer-Tropsch synthesis might be desired to obtain more stable catalysts (less coking), but this effect has to be balanced against increased methanation activity. DA - 2014 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2014 T1 - AuPt nano-alloys as reduction promoters for Co/TiO&#8322; Fischer-Tropsch catalysts TI - AuPt nano-alloys as reduction promoters for Co/TiO&#8322; Fischer-Tropsch catalysts UR - http://hdl.handle.net/11427/13375 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/13375
dc.identifier.vancouvercitationKunene A. AuPt nano-alloys as reduction promoters for Co/TiO&#8322; Fischer-Tropsch catalysts. [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/11427/13375en_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.titleAuPt nano-alloys as reduction promoters for Co/TiO&#8322; Fischer-Tropsch catalystsen_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
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