DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yoon, Ki Ro | ko |
dc.contributor.author | Shin, Kihyun | ko |
dc.contributor.author | Park, Jiwon | ko |
dc.contributor.author | Cho, Su-Ho | ko |
dc.contributor.author | Kim, Chanhoon | ko |
dc.contributor.author | Jung, Ji-Won | ko |
dc.contributor.author | Cheong, Jun Young | ko |
dc.contributor.author | Byon, Hye Ryung | ko |
dc.contributor.author | Lee, Hyuck-Mo | ko |
dc.contributor.author | Kim, Il-Doo | ko |
dc.date.accessioned | 2018-02-21T06:03:09Z | - |
dc.date.available | 2018-02-21T06:03:09Z | - |
dc.date.created | 2018-02-12 | - |
dc.date.created | 2018-02-12 | - |
dc.date.created | 2018-02-12 | - |
dc.date.issued | 2018-01 | - |
dc.identifier.citation | ACS NANO, v.12, no.1, pp.128 - 139 | - |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.uri | http://hdl.handle.net/10203/240211 | - |
dc.description.abstract | To achieve a high reversibility and long cycle life for lithium-oxygen (Li-O-2) batteries, the irreversible formation of Li2O2, inevitable side reactions, and poor charge transport at the cathode interfaces should be overcome. Here, we report a rational design of air cathode using a cobalt nitride (Co4N) functionalized carbon nanofiber (CNF) membrane as current collector-catalyst integrated air cathode. Brush-like Co4N nanorods are uniformly anchored on conductive electrospun CNF papers via hydrothermal growth of Co(OH)F nanorods followed by nitridation step. Co4N-decorated CNF (Co4N/CNF) cathode exhibited excellent electrochemical performance with outstanding stability for over 177 cycles in Li-O-2 cells. During cycling, metallic Co4N nanorods provide sufficient accessible reaction sites as well as facile electron transport pathway throughout the continuously networked CNF. Furthermore, thin oxide layer (<10 nm) formed on the surface of Co4N nanorods promote reversible formation/decomposition of film-type Li2O2, leading to significant reduction in overpotential gap (similar to 1.23 V at 700 mAh g(-3)). Moreover, pouch-type Li-air cells using Co4N/CNF cathode stably operated in real air atmosphere even under 180 degrees bending. The results demonstrate that the favorable formation/decomposition of reaction products and mediation of side reactions are hugely governed by the suitable surface chemistry and tailored structure of cathode materials, which are essential for real Li-air battery applications. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | LITHIUM-OXYGEN BATTERIES | - |
dc.subject | HYDROGEN EVOLUTION REACTION | - |
dc.subject | AIR-BATTERIES | - |
dc.subject | MOLYBDENUM NITRIDE | - |
dc.subject | NANOWIRE ARRAYS | - |
dc.subject | ENERGY-STORAGE | - |
dc.subject | EFFICIENT | - |
dc.subject | ELECTROCATALYSTS | - |
dc.subject | OXIDATION | - |
dc.subject | REDUCTION | - |
dc.title | Brush-Like Cobalt Nitride Anchored Carbon Nanofiber Membrane: Current Collector Catalyst Integrated Cathode for Long Cycle Li-O-2 Batteries | - |
dc.type | Article | - |
dc.identifier.wosid | 000423495200014 | - |
dc.identifier.scopusid | 2-s2.0-85037700032 | - |
dc.type.rims | ART | - |
dc.citation.volume | 12 | - |
dc.citation.issue | 1 | - |
dc.citation.beginningpage | 128 | - |
dc.citation.endingpage | 139 | - |
dc.citation.publicationname | ACS NANO | - |
dc.identifier.doi | 10.1021/acsnano.7b03794 | - |
dc.contributor.localauthor | Byon, Hye Ryung | - |
dc.contributor.localauthor | Lee, Hyuck-Mo | - |
dc.contributor.localauthor | Kim, Il-Doo | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | cobalt nitrides | - |
dc.subject.keywordAuthor | carbon nanofibers | - |
dc.subject.keywordAuthor | lithium-oxygen batteries | - |
dc.subject.keywordAuthor | flexible | - |
dc.subject.keywordAuthor | air cathodes | - |
dc.subject.keywordPlus | LITHIUM-OXYGEN BATTERIES | - |
dc.subject.keywordPlus | HYDROGEN EVOLUTION REACTION | - |
dc.subject.keywordPlus | AIR-BATTERIES | - |
dc.subject.keywordPlus | MOLYBDENUM NITRIDE | - |
dc.subject.keywordPlus | NANOWIRE ARRAYS | - |
dc.subject.keywordPlus | ENERGY-STORAGE | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | REDUCTION | - |
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