Lens-Shaped Carbon Particles with Perpendicularly-Oriented Channels for High-Performance Proton Exchange Membrane Fuel Cells
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Young Jun | - |
dc.contributor.author | Kim, Hee-Eun | - |
dc.contributor.author | Oh, Hyunkyu | - |
dc.contributor.author | Yun, Hong seok | - |
dc.contributor.author | Lee, Joonho | - |
dc.contributor.author | Shin, Sangyong | - |
dc.contributor.author | Lee, Hyunjoo | - |
dc.contributor.author | Kim, Bumjoon | - |
dc.date.accessioned | 2022-07-06T10:18:43Z | - |
dc.date.available | 2022-07-06T10:18:43Z | - |
dc.date.created | 2022-03-07 | - |
dc.date.issued | 2022-02 | - |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/139575 | - |
dc.description.abstract | Two-dimensional sheet-like mesoporous carbon particles are promising for maximizing the number of active sites and the mass transport efficiency of proton exchange membrane fuel cells (PEMFCs). Herein, we develop a series of lens-shaped mesoporous carbon (LMC) particles with perpendicularly oriented channels (diameter = 60 nm) and aspect ratios (ARs) varying from 2.1 to 6.2 and apply them for the fabrication of highly efficient PEMFCs. The membrane emulsification affords uniform-sized, lens-shaped block copolymer particles, which are successfully converted into the LMC particles with well-ordered vertical channels through hyper-cross-linking and carbonization steps. Then, an ultralow amount (1 wt %) of platinum (Pt) is loaded into the particles. The LMC particles with higher ARs are packed with a higher density in the cathode and are better aligned on the cathode surface compared to the LMC particles with lower ARs. Thus, the well-ordered channels in the particles facilitate the mass transport of the reactants and products, significantly increasing the PEMFC performance. For example, the LMC particles with the AR of 6.2 show the highest initial single cell performance of 1135 mW cm-2, and the cell exhibits high durability with 1039 mW cm-2 even after 30 »000 cycles. This cell performance surpasses that of commercial Pt/C catalysts, even at 1/20 of the Pt loading. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Lens-Shaped Carbon Particles with Perpendicularly-Oriented Channels for High-Performance Proton Exchange Membrane Fuel Cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Yun, Hong seok | - |
dc.identifier.doi | 10.1021/acsnano.1c10280 | - |
dc.identifier.scopusid | 2-s2.0-85124122620 | - |
dc.identifier.wosid | 000776691400113 | - |
dc.identifier.bibliographicCitation | ACS NANO, v.16, no.2, pp.2988 - 2996 | - |
dc.relation.isPartOf | ACS NANO | - |
dc.citation.title | ACS NANO | - |
dc.citation.volume | 16 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 2988 | - |
dc.citation.endPage | 2996 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | ORDERED MESOPOROUS CARBONS | - |
dc.subject.keywordPlus | CATHODE CATALYST | - |
dc.subject.keywordPlus | PORE-SIZE | - |
dc.subject.keywordPlus | ULTRA-LOW | - |
dc.subject.keywordPlus | TRANSFORMATION | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | ASSEMBLIES | - |
dc.subject.keywordPlus | CHALLENGES | - |
dc.subject.keywordPlus | SUPPORTS | - |
dc.subject.keywordAuthor | proton exchange membrane fuel cells | - |
dc.subject.keywordAuthor | oxygen reduction reaction | - |
dc.subject.keywordAuthor | mesoporous carbon particle | - |
dc.subject.keywordAuthor | ultralow Pt usages | - |
dc.subject.keywordAuthor | anisotropic carbon particle | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acsnano.1c10280 | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea+82-2-2220-1365
COPYRIGHT © 2021 HANYANG UNIVERSITY.
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.