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DC Field | Value | Language |
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dc.citation.endPage | 5808 | - |
dc.citation.number | 36 | - |
dc.citation.startPage | 5799 | - |
dc.citation.title | ADVANCED FUNCTIONAL MATERIALS | - |
dc.citation.volume | 25 | - |
dc.contributor.author | Liu, Xien | - |
dc.contributor.author | Liu, Wen | - |
dc.contributor.author | Ko, Minseong | - |
dc.contributor.author | Park, Minjoon | - |
dc.contributor.author | Kim, Min Gyu | - |
dc.contributor.author | Oh, Pilgun | - |
dc.contributor.author | Chae, Suhyeon | - |
dc.contributor.author | Park, Suhyeon | - |
dc.contributor.author | Casimir, Anix | - |
dc.contributor.author | Wu, Gang | - |
dc.contributor.author | Cho, Jaephil | - |
dc.date.accessioned | 2023-12-22T00:45:31Z | - |
dc.date.available | 2023-12-22T00:45:31Z | - |
dc.date.created | 2015-09-21 | - |
dc.date.issued | 2015-09 | - |
dc.description.abstract | Oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) along with hydrogen evolution reaction (HER) have been considered critical processes for electrochemical energy conversion and storage through metal-air battery, fuel cell, and water electrolyzer technologies. Here, a new class of multifunctional electrocatalysts consisting of dominant metallic Ni or Co with small fraction of their oxides anchored onto nitrogen-doped reduced graphene oxide (rGO) including Co-CoO/N-rGO and Ni-NiO/N-rGO are prepared via a pyrolysis of graphene oxide and cobalt or nickel salts. Ni-NiO/N-rGO shows the higher electrocatalytic activity for the OER in 0.1 M KOH with a low overpotential of 0.24 V at a current density of 10 mA cm(-2), which is superior to that of the commercial IrO2. In addition, it exhibits remarkable activity for the HER, demonstrating a low overpotential of 0.16 V at a current density of 20 mA cm(-2) in 1.0 M KOH. Apart from similar HER activity to the Ni-based catalyst, Co-CoO/N-rGO displays the higher activity for the ORR, comparable to Pt/C in zinc-air batteries. This work provides a new avenue for the development of multifunctional electrocatalysts with optimal catalytic activity by varying transition metals (Ni or Co) for these highly demanded electrochemical energy technologies. | - |
dc.identifier.bibliographicCitation | ADVANCED FUNCTIONAL MATERIALS, v.25, no.36, pp.5799 - 5808 | - |
dc.identifier.doi | 10.1002/adfm.201502217 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.scopusid | 2-s2.0-84942196495 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/16997 | - |
dc.identifier.url | http://onlinelibrary.wiley.com/doi/10.1002/adfm.201502217/abstract;jsessionid=BDAE760F61B7059B1EB507D4F6C67FB8.f04t01 | - |
dc.identifier.wosid | 000362517900009 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Metal (Ni, Co)-Metal Oxides/Graphene Nanocomposites as Multifunctional Electrocatalysts | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | NITROGEN-DOPED GRAPHENE | - |
dc.subject.keywordPlus | OXYGEN REDUCTION | - |
dc.subject.keywordPlus | HYDROGEN EVOLUTION | - |
dc.subject.keywordPlus | CO3O4 NANOCRYSTALS | - |
dc.subject.keywordPlus | CATHODE CATALYSTS | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | COO | - |
dc.subject.keywordPlus | ENERGY | - |
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