Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 백운규 | - |
dc.date.accessioned | 2019-12-02T02:46:05Z | - |
dc.date.available | 2019-12-02T02:46:05Z | - |
dc.date.issued | 2017-11 | - |
dc.identifier.citation | RSC ADVANCES, v. 7, no. 81, page. 51652-51657 | en_US |
dc.identifier.issn | 2046-2069 | - |
dc.identifier.uri | https://pubs.rsc.org/en/content/articlelanding/2017/RA/C7RA09855C#!divAbstract | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/116233 | - |
dc.description.abstract | Two-dimensional Co3O4 nanosheets dotted with Au nanoparticles were synthesized on the carbon gas diffusion layer as a bifunctional catalyst for Li-O-2 batteries by thermal evaporation and low-temperature calcination. The two-dimensional Co3O4 nanosheets improved the catalytic activity and Au nanoparticles provided additional nucleation sites for the Li2O2 growth in the process of discharge, thus allowing the uniform formation of Li2O2. Moreover, the size and distribution of Au nanoparticles were tuned by evaporating Au in different thicknesses. The catalytic performance of the Co3O4-Au hybrid was improved due to the synergetic effects of both materials and the improvements were closely associated with the size and distribution of Au nanoparticles. When the rationally designed catalyst was used as a cathode catalyst in Li-oxygen batteries, it lowered the polarization effect during cycling and realized the stable cyclability for 70 cycles at a limited capacity of 1000 mA h g(-1). | en_US |
dc.description.sponsorship | This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP), the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20168510050080) and the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), which was granted financial resources from the Ministry of Trade, Industry & Energy, Republic of Korea (20174010201240). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | ROYAL SOC CHEMISTRY | en_US |
dc.subject | LI-O-2 BATTERY | en_US |
dc.subject | ELECTROCATALYTIC ACTIVITY | en_US |
dc.subject | CATHODE CATALYST | en_US |
dc.subject | HIGH-CAPACITY | en_US |
dc.subject | CARBON | en_US |
dc.subject | GRAPHENE | en_US |
dc.subject | NANOFIBERS | en_US |
dc.subject | CHALLENGES | en_US |
dc.subject | ELECTRODES | en_US |
dc.subject | ARRAYS | en_US |
dc.title | Rational design of Au dotted Co3O4 nanosheets as an efficient bifunctional catalyst for Li-oxygen batteries | en_US |
dc.type | Article | en_US |
dc.relation.no | 81 | - |
dc.relation.volume | 7 | - |
dc.identifier.doi | 10.1039/c7ra09855c | - |
dc.relation.page | 51652-51657 | - |
dc.relation.journal | RSC ADVANCES | - |
dc.contributor.googleauthor | Xiang, Juan | - |
dc.contributor.googleauthor | Song, Taeseup | - |
dc.contributor.googleauthor | Paik, Ungyu | - |
dc.relation.code | 2017009490 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ENERGY ENGINEERING | - |
dc.identifier.pid | upaik | - |
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