{"id":{"repo_id":"nus","oai_identifier":"oai:scholarbank.nus.edu.sg:10635/23113"},"canonical_url":"https://search.dev.ndltd.org/etd/nus/oai:scholarbank.nus.edu.sg:10635/23113","repository":{"repo_id":"nus","name":"National University of Singapore","base_url":"https://scholarbank.nus.edu.sg/oai/request"},"display":{"title":"Direct methanol fuel cell catalysts with controllable interface","abstract":"This thesis is focused on producing model anode electrocatalysts for room temperature electrooxidation of methanol to prove the existence of Pt-oxophilic metal pair sites and to delineate their contributions to methanol eletrooxidation by bifunctional catalysis. Model bimetallic and multi-component catalysts with customizable and easily identifiable Pt-oxophilic metal interfaces were produced by templated electrodeposition as segmented nanorods consisting of an alternating sequence of Pt and the oxophilic metal(s); and as a macroporous film of the oxophilic metal on Pt. The model catalysts were comprehensively characterized for morphology, overall composition, distribution of the constituent metals, metal oxidation states, crystal structures; and the number of bimetallic interfaces. The catalytic activities and CO tolerance of the model catalysts in methanol electrooxidation were measured by voltammetry and chronoamperometry in laboratory half cells simulating the room temperature operation of a direct methanol fuel cell (DMFC) anode under acidic conditions.","abstract_html":"This thesis is focused on producing model anode electrocatalysts for room temperature electrooxidation of methanol to prove the existence of Pt-oxophilic metal pair sites and to delineate their contributions to methanol eletrooxidation by bifunctional catalysis. Model bimetallic and multi-component catalysts with customizable and easily identifiable Pt-oxophilic metal interfaces were produced by templated electrodeposition as segmented nanorods consisting of an alternating sequence of Pt and the oxophilic metal(s); and as a macroporous film of the oxophilic metal on Pt. The model catalysts were comprehensively characterized for morphology, overall composition, distribution of the constituent metals, metal oxidation states, crystal structures; and the number of bimetallic interfaces. The catalytic activities and CO tolerance of the model catalysts in methanol electrooxidation were measured by voltammetry and chronoamperometry in laboratory half cells simulating the room temperature operation of a direct methanol fuel cell (DMFC) anode under acidic conditions.","abstract_has_math":false,"creators":["LIU FANG"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2007,"date_issued":"2007-04-12","date_published":"2007-04-12","updated_at":"2026-07-24T03:33:22Z","subjects":["DMFC, methanol oxidation electrocatalysts, Pt-oxophilic metal pair sites, bifunctional catalysis, multi-segment nanorods, macroporous film"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":null,"outbound_label":null,"outbound_source":null},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["LIU FANG"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.issued","label":"Date","values":["2007-04-12"]},{"key":"dc:relation.isreferencedby","label":"Dc Relation Isreferencedby","values":["https://scholarbank.nus.edu.sg/handle/10635/23113"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["DMFC, methanol oxidation electrocatalysts, Pt-oxophilic metal pair sites, bifunctional catalysis, multi-segment nanorods, macroporous film"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://scholarbank.nus.edu.sg/bitstreams/8e0d924c-66fe-45a9-9a90-6a918d1337ee/download"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["This thesis is focused on producing model anode electrocatalysts for room temperature electrooxidation of methanol to prove the existence of Pt-oxophilic metal pair sites and to delineate their contributions to methanol eletrooxidation by bifunctional catalysis. Model bimetallic and multi-component catalysts with customizable and easily identifiable Pt-oxophilic metal interfaces were produced by templated electrodeposition as segmented nanorods consisting of an alternating sequence of Pt and the oxophilic metal(s); and as a macroporous film of the oxophilic metal on Pt. The model catalysts were comprehensively characterized for morphology, overall composition, distribution of the constituent metals, metal oxidation states, crystal structures; and the number of bimetallic interfaces. The catalytic activities and CO tolerance of the model catalysts in methanol electrooxidation were measured by voltammetry and chronoamperometry in laboratory half cells simulating the room temperature operation of a direct methanol fuel cell (DMFC) anode under acidic conditions."]},{"key":"dc:format.checksum.md5","label":"Dc Format Checksum Md5","values":["7c519bebd921010165fb347bbffd1b7f","efadff0b100e56f7333d742e2ec1a111"]},{"key":"dc:title","label":"Title","values":["Direct methanol fuel cell catalysts with controllable interface"]}]}],"canonical_facts":{"dc:creator":["LIU FANG"],"dc:date.issued":["2007-04-12"],"dc:description.abstract":["This thesis is focused on producing model anode electrocatalysts for room temperature electrooxidation of methanol to prove the existence of Pt-oxophilic metal pair sites and to delineate their contributions to methanol eletrooxidation by bifunctional catalysis. 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The catalytic activities and CO tolerance of the model catalysts in methanol electrooxidation were measured by voltammetry and chronoamperometry in laboratory half cells simulating the room temperature operation of a direct methanol fuel cell (DMFC) anode under acidic conditions."],"dc:format.checksum.md5":["7c519bebd921010165fb347bbffd1b7f","efadff0b100e56f7333d742e2ec1a111"],"dc:identifier.uri":["https://scholarbank.nus.edu.sg/bitstreams/8e0d924c-66fe-45a9-9a90-6a918d1337ee/download"],"dc:relation.isreferencedby":["https://scholarbank.nus.edu.sg/handle/10635/23113"],"dc:subject":["DMFC, methanol oxidation electrocatalysts, Pt-oxophilic metal pair sites, bifunctional catalysis, multi-segment nanorods, macroporous film"],"dc:title":["Direct methanol fuel cell catalysts with controllable interface"],"dc:type":["Thesis"]},"updated_at":"2026-07-24T03:33:22Z"}