{"id":{"repo_id":"cape-town","oai_identifier":"oai:open.uct.ac.za:11427/5335"},"canonical_url":"https://search.dev.ndltd.org/etd/cape-town/oai:open.uct.ac.za:11427/5335","repository":{"repo_id":"cape-town","name":"University of Cape Town","base_url":"https://open.uct.ac.za/oai/request"},"display":{"title":"Preparation of model cobalt catalysts for Fischer-Tropsch synthesis using ultrasound preparation techniques","abstract":"In order to study the oxidation behaviour of small cobalt crystallites during Fischer-Tropsch synthesis, it is necessary to prepare model catalysts with cobalt crystallites of which the size distributions can be adjusted. Here ultrasonication was used to decomposed a tricarbonyl precursor in n-decane to prepare small cobalt crystallites. The aim of this study was to vary the cobalt crystallite size distribution by adjusting the preparation conditions. Transmission Electron Microscopy (TEM) was used to measure the crystallites and to obtain the crystallite size distributions.","abstract_html":"In order to study the oxidation behaviour of small cobalt crystallites during Fischer-Tropsch synthesis, it is necessary to prepare model catalysts with cobalt crystallites of which the size distributions can be adjusted. Here ultrasonication was used to decomposed a tricarbonyl precursor in n-decane to prepare small cobalt crystallites. The aim of this study was to vary the cobalt crystallite size distribution by adjusting the preparation conditions. Transmission Electron Microscopy (TEM) was used to measure the crystallites and to obtain the crystallite size distributions.","abstract_has_math":false,"creators":["Erasmus, Willem Johannes"],"institution":"Department of Chemical Engineering","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Van Steen, Eric"],"committee_chairs":[],"committee_members":[],"year":2006,"date_issued":"2006","date_published":"2006","updated_at":"2026-07-22T22:23:06Z","subjects":[],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11427/5335","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Van Steen, Eric"]},{"key":"dc:creator","label":"Author","values":["Erasmus, Willem Johannes"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2014-07-31T11:12:12Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2014-07-31T11:12:12Z"]},{"key":"dc:date.issued","label":"Date","values":["2006"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Department of Chemical Engineering"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["University of Cape Town"]},{"key":"dc:type","label":"Dc Type","values":["Master Thesis"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["Masters"]},{"key":"dc:type.qualificationname","label":"Dc Type Qualificationname","values":["MSc"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11427/5335"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Includes bibliographical references (leaves 84-87)."]},{"key":"dc:description.abstract","label":"Abstract","values":["In order to study the oxidation behaviour of small cobalt crystallites during Fischer-Tropsch synthesis, it is necessary to prepare model catalysts with cobalt crystallites of which the size distributions can be adjusted. Here ultrasonication was used to decomposed a tricarbonyl precursor in n-decane to prepare small cobalt crystallites. The aim of this study was to vary the cobalt crystallite size distribution by adjusting the preparation conditions. Transmission Electron Microscopy (TEM) was used to measure the crystallites and to obtain the crystallite size distributions."]},{"key":"dc:title","label":"Title","values":["Preparation of model cobalt catalysts for Fischer-Tropsch synthesis using ultrasound preparation techniques"]}]}],"canonical_facts":{"dc:contributor.advisor":["Van Steen, Eric"],"dc:creator":["Erasmus, Willem Johannes"],"dc:date.accessioned":["2014-07-31T11:12:12Z"],"dc:date.available":["2014-07-31T11:12:12Z"],"dc:date.issued":["2006"],"dc:description":["Includes bibliographical references (leaves 84-87)."],"dc:description.abstract":["In order to study the oxidation behaviour of small cobalt crystallites during Fischer-Tropsch synthesis, it is necessary to prepare model catalysts with cobalt crystallites of which the size distributions can be adjusted. Here ultrasonication was used to decomposed a tricarbonyl precursor in n-decane to prepare small cobalt crystallites. The aim of this study was to vary the cobalt crystallite size distribution by adjusting the preparation conditions. Transmission Electron Microscopy (TEM) was used to measure the crystallites and to obtain the crystallite size distributions."],"dc:identifier.uri":["http://hdl.handle.net/11427/5335"],"dc:language.iso":["eng"],"dc:publisher.department":["Department of Chemical Engineering"],"dc:publisher.institution":["University of Cape Town"],"dc:title":["Preparation of model cobalt catalysts for Fischer-Tropsch synthesis using ultrasound preparation techniques"],"dc:type":["Master Thesis"],"dc:type.qualificationlevel":["Masters"],"dc:type.qualificationname":["MSc"]},"updated_at":"2026-07-22T22:23:06Z"}