DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Ji Eun | ko |
dc.contributor.author | Lim, Joonwon | ko |
dc.contributor.author | Lee, Gil Yong | ko |
dc.contributor.author | Choi, Sun Hee | ko |
dc.contributor.author | Maiti, Uday Narayan | ko |
dc.contributor.author | Lee, Won Jun | ko |
dc.contributor.author | Lee, Ho Jin | ko |
dc.contributor.author | Kim, Sang Ouk | ko |
dc.date.accessioned | 2016-06-07T09:00:53Z | - |
dc.date.available | 2016-06-07T09:00:53Z | - |
dc.date.created | 2016-02-22 | - |
dc.date.created | 2016-02-22 | - |
dc.date.created | 2016-02-22 | - |
dc.date.issued | 2016-01 | - |
dc.identifier.citation | ACS APPLIED MATERIALS & INTERFACES, v.8, no.3, pp.1571 - 1577 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | http://hdl.handle.net/10203/207686 | - |
dc.description.abstract | Electrochemical oxygen redox reactions are the crucial elements for energy conversion and storage including fuel cells and metal air batteries. Despite tremendous research efforts, developing high-efficient, low-cost, and durable bifunctional oxygen catalysts remains a major challenge. We report a new class of hybrid material consisting of subnanometer thick amorphous cobalt hydroxide anchored on NCNT as a durable ORR/OER bifunctional catalyst. Although amorphous cobalt species-based catalysts are known as good OER catalysts, hybridizing with NCNT successfully enhanced ORR activity by promoting a 4e reduction pathway. Abundant charge carriers in amorphous cobalt hydroxide are found to trigger the superior OER activity with high current density and low Tafel slope as low as 36 mV/decade. A remarkably high OER turnover frequency (TOF) of 2.3 s(-1) at an overpotential of 300 mV was obtained, one of the highest values reported so far. Moreover, the catalytic activity was maintained over 120 h of cycling. The unique subnanometer scale morphology of amorphous hydroxide cobalt species along with intimate cobalt species-NCNT interaction minimizes the deactivation of catalyst during prolonged repeated cycles. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Subnanometer Cobalt-Hydroxide-Anchored N-Doped Carbon Nanotube Forest for Bifunctional Oxygen Catalyst | - |
dc.type | Article | - |
dc.identifier.wosid | 000369044100004 | - |
dc.identifier.scopusid | 2-s2.0-84955563977 | - |
dc.type.rims | ART | - |
dc.citation.volume | 8 | - |
dc.citation.issue | 3 | - |
dc.citation.beginningpage | 1571 | - |
dc.citation.endingpage | 1577 | - |
dc.citation.publicationname | ACS APPLIED MATERIALS & INTERFACES | - |
dc.identifier.doi | 10.1021/acsami.5b10297 | - |
dc.contributor.localauthor | Kim, Sang Ouk | - |
dc.contributor.nonIdAuthor | Choi, Sun Hee | - |
dc.contributor.nonIdAuthor | Maiti, Uday Narayan | - |
dc.contributor.nonIdAuthor | Lee, Ho Jin | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | amorphous metal oxide | - |
dc.subject.keywordAuthor | cobalt hydroxide | - |
dc.subject.keywordAuthor | bifunctional oxygen catalyst | - |
dc.subject.keywordAuthor | carbon nanotubes | - |
dc.subject.keywordAuthor | N-doping | - |
dc.subject.keywordPlus | REDUCTION REACTION | - |
dc.subject.keywordPlus | EVOLUTION REACTION | - |
dc.subject.keywordPlus | ELECTROCATALYSIS | - |
dc.subject.keywordPlus | HYBRID | - |
dc.subject.keywordPlus | PLATINUM | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | CO3O4 | - |
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