Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 한태희 | - |
dc.date.accessioned | 2019-10-17T02:25:04Z | - |
dc.date.available | 2019-10-17T02:25:04Z | - |
dc.date.issued | 2019-06 | - |
dc.identifier.citation | CHEMISTRY OF MATERIALS, v. 31, NO 11, Page. 3967-3973 | en_US |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.issn | 1520-5002 | - |
dc.identifier.uri | https://pubs.acs.org/doi/10.1021/acs.chemmater.9b00210 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/111185 | - |
dc.description.abstract | Numerous modified-carbon catalysts have been developed for the direct synthesis of hydrogen peroxide through electrochemical oxygen reduction. However, given the complex structure of most porous carbons and the poor oxygen reduction reaction (ORR) selectivity typically observed when they are used as catalysts, it is still unclear which carbon defects are responsible for the high two-electron ORR activity typically observed in these materials. Here, we study electrocatalytic peroxide formation activity of nitrogen-doped reduced graphene oxide (N-rGO) materials to relate carbon defects to electrocatalytic activity. To do so, we selected two N-rGO electrodes that selectively produce peroxide at all potentials studied (0.70-0.10 V vs RHE) under alkaline conditions. Oxygen reduction studies, combined with material characterization, especially solid-state (13)carbon nuclear magnetic resonance coupled with magic angle spinning and cross-polarization, demonstrate that epoxy or ether groups in the N-rGO catalyst are likely associated with the active sites that form peroxide at the lowest overpotential in alkaline media. | en_US |
dc.description.sponsorship | B.D.M. and H.W.K. gratefully acknowledge support from the National Science Foundation under Grant CBET-1604927. H.W.K. also acknowledges support from the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education (2016R1A6A3A03012382). T.H.H. and H.P. gratefully acknowledge support from the Basic Science Research Program funded by of the National Research Foundation of Korea (2017R1A2B4010771). H.B.P., J.S.R., J.E.S., and T.H.L. acknowledge support by the Korea CCS R&D Center (Korea CCS 2020 Project) grant funded by the Korea government (Ministry of Science, ICT & Future Planning) in 2018 (Grant 2014M1A8A1049307). This research used resources of the Advanced Light Source, which is a DOE Office of Science User Facility, under Contract DE-AC02-05CH11231. | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMER CHEMICAL SOC | en_US |
dc.subject | ELECTROCHEMICAL REDUCTION | en_US |
dc.subject | DIOXYGEN REDUCTION | en_US |
dc.subject | H2O2 PRODUCTION | en_US |
dc.subject | ACTIVE-SITES | en_US |
dc.subject | GRAPHITE | en_US |
dc.subject | CATALYSTS | en_US |
dc.subject | PERFORMANCE | en_US |
dc.subject | MECHANISMS | en_US |
dc.subject | ELECTRODES | en_US |
dc.subject | EDGE | en_US |
dc.title | Carbon Defect Characterization of Nitrogen-Doped Reduced Graphene Oxide Electrocatalysts for the Two-Electron Oxygen Reduction Reaction | en_US |
dc.type | Article | en_US |
dc.relation.no | 11 | - |
dc.relation.volume | 31 | - |
dc.identifier.doi | 10.1021/acs.chemmater.9b00210 | - |
dc.relation.page | 3967-3973 | - |
dc.relation.journal | CHEMISTRY OF MATERIALS | - |
dc.contributor.googleauthor | Kim, Hyo Won | - |
dc.contributor.googleauthor | Park, Hun | - |
dc.contributor.googleauthor | Roh, Ji Soo | - |
dc.contributor.googleauthor | Shin, Jae Eun | - |
dc.contributor.googleauthor | Lee, Tae Hoon | - |
dc.contributor.googleauthor | Zhang, Liang | - |
dc.contributor.googleauthor | Cho, Young Hoon | - |
dc.contributor.googleauthor | Yoon, Hee Wook | - |
dc.contributor.googleauthor | Bukas, Vanessa J. | - |
dc.contributor.googleauthor | Han, Tae Hee | - |
dc.relation.code | 2019001093 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ORGANIC AND NANO ENGINEERING | - |
dc.identifier.pid | than | - |
dc.identifier.researcherID | E-8590-2015 | - |
dc.identifier.orcid | https://orcid.org/0000-0001-5950-7103 | - |
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