Gas-Phase Synthesis of PtMo Alloy Electrocatalysts with Enhanced Activity and Durability for Oxygen Reduction Reaction
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yoon, Hyunseok | - |
dc.contributor.author | Song, Hee Jo | - |
dc.contributor.author | Ju, Bobae | - |
dc.contributor.author | Jang, Kunik | - |
dc.contributor.author | Kim, Dong-Wan | - |
dc.date.accessioned | 2022-12-11T23:40:18Z | - |
dc.date.available | 2022-12-11T23:40:18Z | - |
dc.date.created | 2022-12-08 | - |
dc.date.issued | 2022 | - |
dc.identifier.issn | 2168-0485 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/147111 | - |
dc.description.abstract | The proton-exchange membrane fuel cell is a promising technology to effectively utilize hydrogen energy, which is the ideal alternative to fossil fuels. However, the high dependency on scarce Pt as an oxygen reduction reaction (ORR) electrocatalyst is still a severe barrier that hinders widespread commercialization. Herein, we propose a facile synthetic strategy facilitating mass production of Pt-Mo solid-solution alloy nanoparticles on a carbon support (PtMo/C) as a highly active ORR electrocatalyst. Without using organic surfactants or reducing agents, our synthesis process based on the gas-phase method in an inert atmosphere is cost-effective and does not require any posttreatment, unlike most reported solution-based reduction processes. Both molybdenum metal and carbon monoxide decomposed from molybdenum hexacarbonyl contribute to the reduction of the PtMo alloy during the annealing process. By elucidating the growth and synthesis mechanisms, we optimized the particle size of PtMo/C to approximately 3.1 nm, annealed at 800 degrees C (PtMo/C-800). Consequently, PtMo/C-800 shows high mass activity (146 mA mgPt-1), which is superior to that of commercial Pt/C, and excellent durability after accelerated degradation tests. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | HIGH-PERFORMANCE | - |
dc.subject | FUEL-CELLS | - |
dc.subject | PLATINUM | - |
dc.subject | SIZE | - |
dc.subject | NANOPARTICLES | - |
dc.subject | CATALYST | - |
dc.subject | NANOCRYSTALS | - |
dc.subject | NANOSPHERES | - |
dc.subject | MOLYBDENUM | - |
dc.subject | CHALLENGES | - |
dc.title | Gas-Phase Synthesis of PtMo Alloy Electrocatalysts with Enhanced Activity and Durability for Oxygen Reduction Reaction | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Dong-Wan | - |
dc.identifier.doi | 10.1021/acssuschemeng.2c05246 | - |
dc.identifier.scopusid | 2-s2.0-85142003170 | - |
dc.identifier.wosid | 000884431800001 | - |
dc.identifier.bibliographicCitation | ACS SUSTAINABLE CHEMISTRY & ENGINEERING | - |
dc.relation.isPartOf | ACS SUSTAINABLE CHEMISTRY & ENGINEERING | - |
dc.citation.title | ACS SUSTAINABLE CHEMISTRY & ENGINEERING | - |
dc.type.rims | ART | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Green & Sustainable Science & Technology | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | FUEL-CELLS | - |
dc.subject.keywordPlus | PLATINUM | - |
dc.subject.keywordPlus | SIZE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | CATALYST | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | NANOSPHERES | - |
dc.subject.keywordPlus | MOLYBDENUM | - |
dc.subject.keywordPlus | CHALLENGES | - |
dc.subject.keywordAuthor | Oxygen reduction reaction | - |
dc.subject.keywordAuthor | Metal alloy | - |
dc.subject.keywordAuthor | Size optimizing | - |
dc.subject.keywordAuthor | Growth mechanism | - |
dc.subject.keywordAuthor | Solid solution | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.