Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 이상욱 | - |
dc.date.accessioned | 2019-05-22T07:27:11Z | - |
dc.date.available | 2019-05-22T07:27:11Z | - |
dc.date.issued | 2017-01 | - |
dc.identifier.citation | ACS NANO, v. 11, no. 1, page. 347-357 | en_US |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.issn | 1936-086X | - |
dc.identifier.uri | https://pubs.acs.org/doi/10.1021/acsnano.6b05914 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/105640 | - |
dc.description.abstract | Rational 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.sponsorship | This 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.iso | en | en_US |
dc.publisher | AMER CHEMICAL SOC | en_US |
dc.subject | aminoguanidine | en_US |
dc.subject | carbon nitride sponge | en_US |
dc.subject | phosphorus and sulfur | en_US |
dc.subject | Zn-air battery | en_US |
dc.subject | bifunctional oxygen electrocatalyst | en_US |
dc.title | Scalable 3-D Carbon Nitride Sponge as an Efficient Metal-Free Bifunctional Oxygen Electrocatalyst for Rechargeable Zn-Air Batteries | en_US |
dc.type | Article | en_US |
dc.relation.no | 1 | - |
dc.relation.volume | 11 | - |
dc.identifier.doi | 10.1021/acsnano.6b05914 | - |
dc.relation.page | 347-357 | - |
dc.relation.journal | ACS NANO | - |
dc.contributor.googleauthor | Shinde, Sambhaji S. | - |
dc.contributor.googleauthor | Lee, Chi-Ho | - |
dc.contributor.googleauthor | Sami, Abdul | - |
dc.contributor.googleauthor | Kim, Dong-Hyung | - |
dc.contributor.googleauthor | Lee, Sang-Uck | - |
dc.contributor.googleauthor | Lee, Jung-Ho | - |
dc.relation.code | 2017000564 | - |
dc.sector.campus | S | - |
dc.sector.daehak | GRADUATE SCHOOL[S] | - |
dc.sector.department | DEPARTMENT OF BIONANOTECHNOLOGY | - |
dc.identifier.pid | sulee | - |
dc.identifier.researcherID | J-9027-2014 | - |
dc.identifier.orcid | http://orcid.org/0000-0001-9596-2349 | - |
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