Pd3Co/MWCNTs Composite Electro-Catalyst Cathode Material for Use in Lithium-Oxygen Batteries
DC Field | Value | Language |
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dc.contributor.author | Cho, Sung Man | - |
dc.contributor.author | Hwang, Sun Woo | - |
dc.contributor.author | Yom, Jee Ho | - |
dc.contributor.author | Yoon, Woo Young | - |
dc.date.accessioned | 2021-09-05T01:17:11Z | - |
dc.date.available | 2021-09-05T01:17:11Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2015 | - |
dc.identifier.issn | 0013-4651 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/96361 | - |
dc.description.abstract | The development of catalysts with high catalytic activity is needed to improve the sluggish reaction kinetics in Li-O-2 batteries. In this study, nano-sized alloy particles derived from metal precursors were employed as a bimetallic catalyst in a Li-O-2 cell, with their high activity and uniform distribution serving to enhance energy efficiency, cycle life, and capacity retention. A cell fabricated with a palladium-cobalt/multi-walled carbon nanotubes (Pd3Co/MWCNTs) electrode was able to stably reach 70 cycles, whereas cells with MnO2/KB and KB electrodes lasted only 17 and 10 cycles, respectively. During the first charging cycle, the cell with a Pd3Co catalyst exhibited a 200 mV lower overpotential than the cell with a MnO2/KB electrode, and a 490 mV lower overpotential than when a KB electrode was used. The Pd3Co/MWCNTs cell also demonstrated superior capacity retention of similar to 94.5% (5th cycle) and similar to 88.7% (20th cycle), with impedance analysis revealing an enhanced reversibility that confirms the improvement in cycle performance. (C) 2015 The Electrochemical Society. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELECTROCHEMICAL SOC INC | - |
dc.subject | LI-AIR BATTERY | - |
dc.subject | LI-O-2 BATTERIES | - |
dc.subject | REDUCTION | - |
dc.subject | ELECTROCATALYSIS | - |
dc.subject | NANOPARTICLES | - |
dc.subject | STABILITY | - |
dc.title | Pd3Co/MWCNTs Composite Electro-Catalyst Cathode Material for Use in Lithium-Oxygen Batteries | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Yoon, Woo Young | - |
dc.identifier.doi | 10.1149/2.0321512jes | - |
dc.identifier.scopusid | 2-s2.0-84942693650 | - |
dc.identifier.wosid | 000363600300003 | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.162, no.12, pp.A2236 - A2244 | - |
dc.relation.isPartOf | JOURNAL OF THE ELECTROCHEMICAL SOCIETY | - |
dc.citation.title | JOURNAL OF THE ELECTROCHEMICAL SOCIETY | - |
dc.citation.volume | 162 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | A2236 | - |
dc.citation.endPage | A2244 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.subject.keywordPlus | LI-AIR BATTERY | - |
dc.subject.keywordPlus | LI-O-2 BATTERIES | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordPlus | ELECTROCATALYSIS | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | STABILITY | - |
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