Sodium-ion storage properties of nickel sulfide hollow nanospheres/reduced graphene oxide composite powders prepared by a spray drying process and the nanoscale Kirkendall effect
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, G. D. | - |
dc.contributor.author | Cho, J. S. | - |
dc.contributor.author | Kang, Y. C. | - |
dc.date.accessioned | 2021-09-05T01:45:07Z | - |
dc.date.available | 2021-09-05T01:45:07Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2015 | - |
dc.identifier.issn | 2040-3364 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/96421 | - |
dc.description.abstract | Spray-drying and the nanoscale Kirkendall diffusion process are used to prepare nickel sulfide hollow nanospheres/reduced graphene oxide (rGO) composite powders with excellent Na-ion storage properties. Metallic Ni nanopowder-decorated rGO powders, formed as intermediate products, are transformed into composite powders of nickel sulfide hollow nanospheres/rGO with mixed crystal structures of Ni3S2 and Ni9S8 phases by the sulfidation process under H2S gas. Nickel sulfide/rGO composite powders with the main crystal structure of Ni3S2 are also prepared as comparison samples by the direct sulfidation of nickel acetate-graphene oxide (GO) composite powders obtained by spray-drying. In electrochemical properties, the discharge capacities at the 150th cycle of the nickel sulfide/rGO composite powders prepared by sulfidation of the Ni/rGO composite and nickel acetate/GO composite powders at a current density of 0.3 A g(-1) are 449 and 363 mA h g(-1), respectively; their capacity retentions, calculated from the tenth cycle, are 100 and 87%. The nickel sulfide hollow nanospheres/rGO composite powders possess structural stability over repeated Na-ion insertion and extraction processes, and also show excellent rate performance for Na-ion storage. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | HIGH-PERFORMANCE ANODE | - |
dc.subject | HIGH-RATE CAPABILITY | - |
dc.subject | ELECTROCHEMICAL PROPERTIES | - |
dc.subject | HYBRID NANOSHEETS | - |
dc.subject | LITHIUM STORAGE | - |
dc.subject | ENERGY-STORAGE | - |
dc.subject | HIGH-CAPACITY | - |
dc.subject | BATTERY | - |
dc.subject | CARBON | - |
dc.subject | LI | - |
dc.title | Sodium-ion storage properties of nickel sulfide hollow nanospheres/reduced graphene oxide composite powders prepared by a spray drying process and the nanoscale Kirkendall effect | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kang, Y. C. | - |
dc.identifier.doi | 10.1039/c5nr04252f | - |
dc.identifier.scopusid | 2-s2.0-84944037807 | - |
dc.identifier.wosid | 000362662100030 | - |
dc.identifier.bibliographicCitation | NANOSCALE, v.7, no.40, pp.16781 - 16788 | - |
dc.relation.isPartOf | NANOSCALE | - |
dc.citation.title | NANOSCALE | - |
dc.citation.volume | 7 | - |
dc.citation.number | 40 | - |
dc.citation.startPage | 16781 | - |
dc.citation.endPage | 16788 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE ANODE | - |
dc.subject.keywordPlus | HIGH-RATE CAPABILITY | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PROPERTIES | - |
dc.subject.keywordPlus | HYBRID NANOSHEETS | - |
dc.subject.keywordPlus | LITHIUM STORAGE | - |
dc.subject.keywordPlus | ENERGY-STORAGE | - |
dc.subject.keywordPlus | HIGH-CAPACITY | - |
dc.subject.keywordPlus | BATTERY | - |
dc.subject.keywordPlus | CARBON | - |
dc.subject.keywordPlus | LI | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
145 Anam-ro, Seongbuk-gu, Seoul, 02841, Korea+82-2-3290-2963
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.