DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Changsoo | ko |
dc.contributor.author | Lee, Chulhee | ko |
dc.contributor.author | Shin, Kihyun | ko |
dc.contributor.author | Song, Taeyoung | ko |
dc.contributor.author | Jeong, Hu Young | ko |
dc.contributor.author | Jeon, Duk Young | ko |
dc.contributor.author | Lee, Hyuck Mo | ko |
dc.date.accessioned | 2019-09-24T11:21:11Z | - |
dc.date.available | 2019-09-24T11:21:11Z | - |
dc.date.created | 2019-09-24 | - |
dc.date.created | 2019-09-24 | - |
dc.date.issued | 2019-09 | - |
dc.identifier.citation | CATALYSIS COMMUNICATIONS, v.129 | - |
dc.identifier.issn | 1566-7367 | - |
dc.identifier.uri | http://hdl.handle.net/10203/267653 | - |
dc.description.abstract | Water electrolysis has received great attention for producing hydrogen, but sluggish kinetics of oxygen evolution reaction (OER) has remained a big challenge. Recently, cobalt sulfide materials have been widely explored as great choice in highly efficient electrocatalysts due to their good electrical conductivity and bi-functionality toward OER and hydrogen evolution reaction (HER). However, cobalt sulfide shows outstanding HER activity, but its OER activity should be improved. Herein, hexagonal-phase cobalt sulfide (CoS) nano-wires with abundant stepped surfaces and defect sites were prepared via a seed-growth approach with silver sulfide (Ag2S) nanoparticles. The Ag2S-CoS hetero-nanowires (HNWs) exhibited excellent electrochemical performances for oxygen evolution reaction (overpotential = 275 mV, Tafel slope = 77.1 mVdec(-1), charge transfer resistance = 1.3 Omega) in 1.0 M KOH solution. The origin of superior activity was investigated using a combined experimental and theoretical approach. This work highlights the importance of surface defects for improving oxygen evolution reaction performance of water electrolysis. | - |
dc.language | English | - |
dc.publisher | ELSEVIER | - |
dc.title | Ag2S-CoS hetero-nanowires terminated with stepped surfaces for improved oxygen evolution reaction | - |
dc.type | Article | - |
dc.identifier.wosid | 000484651800023 | - |
dc.identifier.scopusid | 2-s2.0-85068393417 | - |
dc.type.rims | ART | - |
dc.citation.volume | 129 | - |
dc.citation.publicationname | CATALYSIS COMMUNICATIONS | - |
dc.identifier.doi | 10.1016/j.catcom.2019.105749 | - |
dc.contributor.localauthor | Jeon, Duk Young | - |
dc.contributor.localauthor | Lee, Hyuck Mo | - |
dc.contributor.nonIdAuthor | Lee, Changsoo | - |
dc.contributor.nonIdAuthor | Shin, Kihyun | - |
dc.contributor.nonIdAuthor | Jeong, Hu Young | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Cobalt sulfide | - |
dc.subject.keywordAuthor | Seeded growth | - |
dc.subject.keywordAuthor | Stepped surface | - |
dc.subject.keywordAuthor | Oxygen evolution reaction | - |
dc.subject.keywordPlus | HYDROGEN-PRODUCTION | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | CATALYST | - |
dc.subject.keywordPlus | COS | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | OXIDES | - |
dc.subject.keywordPlus | PHASE | - |
dc.subject.keywordPlus | FOAM | - |
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