{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/124455"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/124455","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Trimetallic gold silver copper nanorods for carbon dioxide reduction","abstract":"AuAgCu trimetallic nanorods of varying sizes and elemental ratios were synthesized using a seed-mediated growth procedure. These three metals were of interest due to their respective metal nanorods’ tunable plasmonic and catalytic properties especially in photocatalysis. The synthesis was adapted from a popular gold nanorods synthesis procedure where the modification would be replacing gold salts with copper salts. The formation of the rodlike shape was assisted by the presence of Ag ions with greater amounts of Ag forming higher aspect ratio nanorods, and their longitudinal localized surface plasmon resonance peaks (LSPR) were measured with a UV-Vis spectrometer. A standard size of trimetallic rods of widths between 10-14 nm were formed. A miniature size of these rods of widths between 4-8 nm were also created by increasing the volume of seeds added to the growth solution. Transmission electron microscopy (TEM) was used to measure the dimensions of the nanorods. LSPR extinction peaks ranged from 630 to 770 nm depending on the size and aspect ratio. Energy-dispersive X-ray spectroscopy (EDS) and inductively coupled plasma mass spectrometry (ICP-MS) were used to determine the elemental composition of the trimetallic nanorods. EDS was also used for elemental mapping of the nanorods to determine that all three metals form a disordered alloy throughout the entire nanorod.","abstract_html":"AuAgCu trimetallic nanorods of varying sizes and elemental ratios were synthesized using a seed-mediated growth procedure. These three metals were of interest due to their respective metal nanorods’ tunable plasmonic and catalytic properties especially in photocatalysis. The synthesis was adapted from a popular gold nanorods synthesis procedure where the modification would be replacing gold salts with copper salts. The formation of the rodlike shape was assisted by the presence of Ag ions with greater amounts of Ag forming higher aspect ratio nanorods, and their longitudinal localized surface plasmon resonance peaks (LSPR) were measured with a UV-Vis spectrometer. A standard size of trimetallic rods of widths between 10-14 nm were formed. A miniature size of these rods of widths between 4-8 nm were also created by increasing the volume of seeds added to the growth solution. Transmission electron microscopy (TEM) was used to measure the dimensions of the nanorods. LSPR extinction peaks ranged from 630 to 770 nm depending on the size and aspect ratio. Energy-dispersive X-ray spectroscopy (EDS) and inductively coupled plasma mass spectrometry (ICP-MS) were used to determine the elemental composition of the trimetallic nanorods. EDS was also used for elemental mapping of the nanorods to determine that all three metals form a disordered alloy throughout the entire nanorod.","abstract_has_math":false,"creators":["Shiau, Amos"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Chemistry","degree_department":null,"school":null,"contributors":["Murphy, Catherine J"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2024,"date_issued":"2024-05-02","date_published":"2024-05-02","updated_at":"2026-07-22T22:25:00Z","subjects":["Gold","Silver","Copper","Nanorods","Synthesis"],"languages":["eng","en"],"rights":["Copyright 2024 Amos Shiau"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/124455","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Murphy, Catherine J"]},{"key":"dc:creator","label":"Author","values":["Shiau, Amos"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2024-05-02","2024-05"]},{"key":"dc:type","label":"Dc Type","values":["Text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Chemistry"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Gold","Silver","Copper","Nanorods","Synthesis"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng","en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2024 Amos Shiau"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/124455"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["AuAgCu trimetallic nanorods of varying sizes and elemental ratios were synthesized using a seed-mediated growth procedure. These three metals were of interest due to their respective metal nanorods’ tunable plasmonic and catalytic properties especially in photocatalysis. The synthesis was adapted from a popular gold nanorods synthesis procedure where the modification would be replacing gold salts with copper salts. The formation of the rodlike shape was assisted by the presence of Ag ions with greater amounts of Ag forming higher aspect ratio nanorods, and their longitudinal localized surface plasmon resonance peaks (LSPR) were measured with a UV-Vis spectrometer. A standard size of trimetallic rods of widths between 10-14 nm were formed. A miniature size of these rods of widths between 4-8 nm were also created by increasing the volume of seeds added to the growth solution. Transmission electron microscopy (TEM) was used to measure the dimensions of the nanorods. LSPR extinction peaks ranged from 630 to 770 nm depending on the size and aspect ratio. Energy-dispersive X-ray spectroscopy (EDS) and inductively coupled plasma mass spectrometry (ICP-MS) were used to determine the elemental composition of the trimetallic nanorods. EDS was also used for elemental mapping of the nanorods to determine that all three metals form a disordered alloy throughout the entire nanorod.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms","The student, Amos Shiau, accepted the attached license on 2024-05-01 at 15:28.","The student, Amos Shiau, submitted this Thesis for approval on 2024-05-01 at 15:36.","This Thesis was approved for publication on 2024-05-02 at 11:46.","DSpace SAF Submission Ingestion Package generated from Vireo submission #20742 on 2024-09-16 at 00:37:47"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Trimetallic gold silver copper nanorods for carbon dioxide reduction"]}]}],"canonical_facts":{"dc:contributor":["Murphy, Catherine J"],"dc:creator":["Shiau, Amos"],"dc:date":["2024-05-02","2024-05"],"dc:description":["AuAgCu trimetallic nanorods of varying sizes and elemental ratios were synthesized using a seed-mediated growth procedure. These three metals were of interest due to their respective metal nanorods’ tunable plasmonic and catalytic properties especially in photocatalysis. The synthesis was adapted from a popular gold nanorods synthesis procedure where the modification would be replacing gold salts with copper salts. The formation of the rodlike shape was assisted by the presence of Ag ions with greater amounts of Ag forming higher aspect ratio nanorods, and their longitudinal localized surface plasmon resonance peaks (LSPR) were measured with a UV-Vis spectrometer. A standard size of trimetallic rods of widths between 10-14 nm were formed. A miniature size of these rods of widths between 4-8 nm were also created by increasing the volume of seeds added to the growth solution. Transmission electron microscopy (TEM) was used to measure the dimensions of the nanorods. LSPR extinction peaks ranged from 630 to 770 nm depending on the size and aspect ratio. Energy-dispersive X-ray spectroscopy (EDS) and inductively coupled plasma mass spectrometry (ICP-MS) were used to determine the elemental composition of the trimetallic nanorods. EDS was also used for elemental mapping of the nanorods to determine that all three metals form a disordered alloy throughout the entire nanorod.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms","The student, Amos Shiau, accepted the attached license on 2024-05-01 at 15:28.","The student, Amos Shiau, submitted this Thesis for approval on 2024-05-01 at 15:36.","This Thesis was approved for publication on 2024-05-02 at 11:46.","DSpace SAF Submission Ingestion Package generated from Vireo submission #20742 on 2024-09-16 at 00:37:47"],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/124455"],"dc:language":["eng","en"],"dc:rights":["Copyright 2024 Amos Shiau"],"dc:subject":["Gold","Silver","Copper","Nanorods","Synthesis"],"dc:title":["Trimetallic gold silver copper nanorods for carbon dioxide reduction"],"dc:type":["Text"],"thesis:degree_discipline":["Chemistry"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:00Z"}