CoNi bimetallic engineering on porous carbon for high energy density hybrid supercapacitors
DC Field | Value | Language |
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dc.contributor.author | Pallavolu, Mohan Reddy | - |
dc.contributor.author | Sowjanya, V. | - |
dc.contributor.author | Dhananjaya, M. | - |
dc.contributor.author | Reddy, N. Ramesh | - |
dc.contributor.author | Jyothi, Nallapureddy | - |
dc.contributor.author | Jung, Jae Hak | - |
dc.contributor.author | Joo, Sang W. | - |
dc.date.accessioned | 2023-05-16T00:40:44Z | - |
dc.date.available | 2023-05-16T00:40:44Z | - |
dc.date.created | 2023-05-15 | - |
dc.date.issued | 2023-06 | - |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/87674 | - |
dc.description.abstract | Rationally designed, structurally stable, and high-capacity transition metal alloy decorated carbon composites have attracted considerable attention as electrode materials for high-performance hybrid super-capacitors (HSCs). A unique electrode material composed of mixed transition metals (Co and Ni) on fryums-derived porous carbon was synthesized using a facile one-step pyrolysis approach. The CoNi@C composite exhibited rich redox kinetics and good electrochemical performance in an aqueous alkaline electrolyte. In particular, the CoNi@C composite delivered a maximum specific capacity of 390 mA h g(-1) at 1 A g(-1) with good capacitance retention of 91 % over 5000 cycles. The gravimetric specific capacity of the CoNi@C composite was 1.3 times better than that of the single alloy composite. Moreover, the HSC fabricated with CoNi@C, and activated carbon electrodes exhibited a high energy density of 57.6 Wh kg(-1) at a power density of 742 W kg(-1) and good cycling stability with a low-capacity loss of 8 % after 5000 cycles. Utilizing high-voltage and energy density, the HSCs can power light-emitting diodes of different wavelengths, demonstrating its practical applicability in energy storage technologies. The structural verification of fryum-derived carbon revealed a good graphitization degree, ensuring its remarkable adaptability for device fabrication. (c) 2023 Elsevier B.V. All rights reserved. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.relation.isPartOf | JOURNAL OF ALLOYS AND COMPOUNDS | - |
dc.title | CoNi bimetallic engineering on porous carbon for high energy density hybrid supercapacitors | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000955258400001 | - |
dc.identifier.doi | 10.1016/j.jallcom.2023.169464 | - |
dc.identifier.bibliographicCitation | JOURNAL OF ALLOYS AND COMPOUNDS, v.947 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85149779714 | - |
dc.citation.title | JOURNAL OF ALLOYS AND COMPOUNDS | - |
dc.citation.volume | 947 | - |
dc.contributor.affiliatedAuthor | Sowjanya, V. | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Fryum-derived carbon | - |
dc.subject.keywordAuthor | CoNi bimetallic | - |
dc.subject.keywordAuthor | Supercapacitor | - |
dc.subject.keywordAuthor | Energy density | - |
dc.subject.keywordAuthor | Cyclic durability | - |
dc.subject.keywordPlus | GRAPHITIC CARBON | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | NITROGEN | - |
dc.subject.keywordPlus | COMPOSITES | - |
dc.subject.keywordPlus | NANOSHEETS | - |
dc.subject.keywordPlus | NANORODS | - |
dc.subject.keywordPlus | SHEETS | - |
dc.subject.keywordPlus | DEVICE | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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