Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 배성철 | - |
dc.date.accessioned | 2022-04-08T07:12:40Z | - |
dc.date.available | 2022-04-08T07:12:40Z | - |
dc.date.issued | 2020-08 | - |
dc.identifier.citation | SCIENTIFIC REPORTS, v. 10, no. 1, article no. 18956 | en_US |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | https://www.nature.com/articles/s41598-020-75946-1 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/169795 | - |
dc.description.abstract | In this work, nickel cobaltite (NiCo2O4) nanosheets with a porous structure were fabricated on nickel foam as a working electrode for supercapacitor applications. The nanosheets were fabricated by electrochemical deposition of nickel-cobalt hydroxide on the nickel foam substrate at ambient temperature in a three-electrode cell followed by annealing at 300 degrees C to transform the coating into a porous NiCo2O4 nanosheet. Field emission scanning electron microscopy and transmission electron microscopy revealed a three-dimensional mesoporous structure, which facilitates ion transport and electronic conduction for fast redox reactions. For one cycle, the NiCo2O4 electrodeposited nickel foam has a high specific capacitance (1734.9 F g(-1)) at a current density (CD) of 2 A g(-1). The electrode capacitance decreased by only approximately 12.7% after 3500 cycles at a CD of 30 A g(-1). Moreover, a solid-state asymmetric supercapacitor (ASC) was built utilising the NiCo2O4 nanosheets, carbon nanotubes, and a polyvinyl alcohol-potassium hydroxide gel as the anode, cathode, and solid-state electrolyte, respectively. The ASC displayed great electrochemical properties with a 42.25 W h kg(-1) energy density at a power density of 298.79 W kg(-1). | en_US |
dc.description.sponsorship | This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. NRF-2020R1A4A1019074). This work was funded by the Science and Technology Development Fund, Macau SAR (File no. 0191/2017/A3, 0041/2019/A1, 0046/2019/AFJ, 0021/2019/AIR), University of Macau (File no. MYRG2017-00216-FST and MYRG2018-00192-IAPME). | en_US |
dc.language.iso | en | en_US |
dc.publisher | NATURE PUBLISHING GROUP | en_US |
dc.subject | LAYERED DOUBLE HYDROXIDES | en_US |
dc.subject | BINDER-FREE ELECTRODE | en_US |
dc.subject | ASYMMETRIC SUPERCAPACITOR | en_US |
dc.subject | CAPACITIVE PERFORMANCE | en_US |
dc.subject | ENERGY-CONVERSION | en_US |
dc.subject | FACILE SYNTHESIS | en_US |
dc.subject | ION BATTERIES | en_US |
dc.subject | LITHIUM-ION | en_US |
dc.subject | STORAGE | en_US |
dc.subject | NANOWIRES | en_US |
dc.title | Supercapacitor performance of porous nickel cobaltite nanosheets | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1038/s41598-020-75946-1 | - |
dc.relation.page | 1-11 | - |
dc.relation.journal | SCIENTIFIC REPORTS | - |
dc.contributor.googleauthor | Chen, Xin | - |
dc.contributor.googleauthor | Xie, Rui | - |
dc.contributor.googleauthor | Li, Hui | - |
dc.contributor.googleauthor | Jaber, F. | - |
dc.contributor.googleauthor | Musharavati, F. | - |
dc.contributor.googleauthor | Zalnezhad, E. | - |
dc.contributor.googleauthor | Bae, S. | - |
dc.contributor.googleauthor | Hui, K. S. | - |
dc.contributor.googleauthor | Hui, K. N. | - |
dc.relation.code | 2020051242 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | SCHOOL OF ARCHITECTURAL ENGINEERING | - |
dc.identifier.pid | sbae | - |
dc.identifier.orcid | https://orcid.org/0000-0002-8511-6939 | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.