Nb-TiO2 nanotubes as catalyst supports with high activity and durability for oxygen reduction
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Noh, Kyung-Jong | - |
dc.contributor.author | Nam, Inho | - |
dc.contributor.author | Han, Jeong Woo | - |
dc.date.accessioned | 2021-06-18T07:14:43Z | - |
dc.date.available | 2021-06-18T07:14:43Z | - |
dc.date.issued | 2020-08 | - |
dc.identifier.issn | 0169-4332 | - |
dc.identifier.issn | 1873-5584 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/44155 | - |
dc.description.abstract | Platinum is the most effective catalyst for oxygen reduction in proton-exchange membrane fuel cells (PEMFCs). Nevertheless, significant problems must be addressed for the effective use of Pt, such as the extremely low Pt utilization in the electrocatalysts and low durability due to corrosion of the support. Here, we present a promising approach for addressing these challenges by the facile synthesis of Nb-TiO2 nanotubes as efficient support for Pt-based electrocatalysts. The Pt/Nb-TiO2 nanotubes led to a marked enhancement of the oxygen reduction reaction kinetics, attributed to the increased electronic conductivity and strong metal-support interaction of the Nb-TiO2 support. Moreover, compared to the state-of-the-art conventional Pt/carbon catalyst, the Pt/Nb-TiO2 nanotubes show high durability because of their structural stability and retention of the high surface area during post-processing. The mass activity of the conventional Pt/C decreased by 37% after the ADT (126.9 and 80.1 A g−1 Pt before and after ADT, respectively), whereas that of Pt/Nb-TiO2 was merely reduced by 22% (285.1 and 222.6 A g−1 Pt before and after ADT, respectively). © 2020 Elsevier B.V. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Elsevier B.V. | - |
dc.title | Nb-TiO2 nanotubes as catalyst supports with high activity and durability for oxygen reduction | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.apsusc.2020.146330 | - |
dc.identifier.bibliographicCitation | Applied Surface Science, v.521 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000545298400009 | - |
dc.identifier.scopusid | 2-s2.0-85083679060 | - |
dc.citation.title | Applied Surface Science | - |
dc.citation.volume | 521 | - |
dc.type.docType | Article | - |
dc.publisher.location | 네델란드 | - |
dc.subject.keywordAuthor | Electrocatalytic activity and durability | - |
dc.subject.keywordAuthor | Nb-TiO2 nanotubes | - |
dc.subject.keywordAuthor | Oxygen reduction reaction | - |
dc.subject.keywordAuthor | Proton-exchange membrane fuel cells | - |
dc.subject.keywordPlus | Catalyst activity | - |
dc.subject.keywordPlus | Corrosion | - |
dc.subject.keywordPlus | Durability | - |
dc.subject.keywordPlus | Electrocatalysts | - |
dc.subject.keywordPlus | Electrolytic reduction | - |
dc.subject.keywordPlus | Nanocatalysts | - |
dc.subject.keywordPlus | Nanotubes | - |
dc.subject.keywordPlus | Niobium compounds | - |
dc.subject.keywordPlus | Oxygen | - |
dc.subject.keywordPlus | Oxygen reduction reaction | - |
dc.subject.keywordPlus | Platinum metals | - |
dc.subject.keywordPlus | Proton exchange membrane fuel cells (PEMFC) | - |
dc.subject.keywordPlus | Reaction kinetics | - |
dc.subject.keywordPlus | Stability | - |
dc.subject.keywordPlus | Titanium dioxide | - |
dc.subject.keywordPlus | Electronic conductivity | - |
dc.subject.keywordPlus | Facile synthesis | - |
dc.subject.keywordPlus | High surface area | - |
dc.subject.keywordPlus | Oxygen Reduction | - |
dc.subject.keywordPlus | Proton exchange membrane fuel cell (PEMFCs) | - |
dc.subject.keywordPlus | Pt-based electrocatalyst | - |
dc.subject.keywordPlus | Strong metal support interaction | - |
dc.subject.keywordPlus | Structural stabilities | - |
dc.subject.keywordPlus | Platinum compounds | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
84, Heukseok-ro, Dongjak-gu, Seoul, Republic of Korea (06974)02-820-6194
COPYRIGHT 2019 Chung-Ang 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.