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dc.contributor.author이상욱-
dc.date.accessioned2019-05-22T07:27:11Z-
dc.date.available2019-05-22T07:27:11Z-
dc.date.issued2017-01-
dc.identifier.citationACS NANO, v. 11, no. 1, page. 347-357en_US
dc.identifier.issn1936-0851-
dc.identifier.issn1936-086X-
dc.identifier.urihttps://pubs.acs.org/doi/10.1021/acsnano.6b05914-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/105640-
dc.description.abstractRational design of efficient and durable bifunctional oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) electrocatalysts is critical for rechargeable metal-air batteries. Here, we developed a facile strategy for fabricating three-dimensional phosphorus and sulfur codoped carbon nitride sponges sandwiched with carbon nanocrystals (P,S-CNS). These materials exhibited high surface area and superior ORR and OER bifunctional catalytic activities than those of Pt/C and RuO2, respectively, concerning its limiting current density and onset potential. Further, we tested the suitability and durability of P,S-CNS as the oxygen cathode for primary and rechargeable Zn-air batteries. The resulting primary Zn-air battery exhibited a high open-circuit voltage of 1.51 V, a high discharge peak power density of 198 mW cm(-2), a specific capacity of 830 mA h g(-1), and better durability for 210 h after mechanical recharging. An extraordinary small charge-discharge voltage polarization (similar to 0.80 V at 25 mA cm(-2)), superior reversibility, and stability exceeding prolonged charge-discharge cycles have been attained in rechargeable Zn-air batteries with a three-electrode system. The origin of the electro catalytic activity of P,S-CNS was elucidated by density functional theory analysis for both oxygen reactions. This work stimulates an innovative prospect for the enrichment of rechargeable Zn-air battery viable for commercial applications such as armamentaria, smart electronics, and electric vehicles.en_US
dc.description.sponsorshipThis work was supported by the International Collaborative Energy Technology R&D Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry and Energy, Republic of Korea (no. 20168520011370). C.-H.L. and S.-U.L. thank the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Science, ICT, and Future Planning (NRF-2015R1C1A1A02036670).en_US
dc.language.isoenen_US
dc.publisherAMER CHEMICAL SOCen_US
dc.subjectaminoguanidineen_US
dc.subjectcarbon nitride spongeen_US
dc.subjectphosphorus and sulfuren_US
dc.subjectZn-air batteryen_US
dc.subjectbifunctional oxygen electrocatalysten_US
dc.titleScalable 3-D Carbon Nitride Sponge as an Efficient Metal-Free Bifunctional Oxygen Electrocatalyst for Rechargeable Zn-Air Batteriesen_US
dc.typeArticleen_US
dc.relation.no1-
dc.relation.volume11-
dc.identifier.doi10.1021/acsnano.6b05914-
dc.relation.page347-357-
dc.relation.journalACS NANO-
dc.contributor.googleauthorShinde, Sambhaji S.-
dc.contributor.googleauthorLee, Chi-Ho-
dc.contributor.googleauthorSami, Abdul-
dc.contributor.googleauthorKim, Dong-Hyung-
dc.contributor.googleauthorLee, Sang-Uck-
dc.contributor.googleauthorLee, Jung-Ho-
dc.relation.code2017000564-
dc.sector.campusS-
dc.sector.daehakGRADUATE SCHOOL[S]-
dc.sector.departmentDEPARTMENT OF BIONANOTECHNOLOGY-
dc.identifier.pidsulee-
dc.identifier.researcherIDJ-9027-2014-
dc.identifier.orcidhttp://orcid.org/0000-0001-9596-2349-
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GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
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