Electrochemical properties of amorphous GeOx-C composite microspheres prepared by a one-pot spray pyrolysis process
DC Field | Value | Language |
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dc.contributor.author | Kim, Jin Koo | - |
dc.contributor.author | Park, Gi Dae | - |
dc.contributor.author | Kim, Jung Hyun | - |
dc.contributor.author | Kim, Jong Hwa | - |
dc.contributor.author | Kang, Yun Chan | - |
dc.date.accessioned | 2021-09-03T06:56:39Z | - |
dc.date.available | 2021-09-03T06:56:39Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2017-05 | - |
dc.identifier.issn | 0272-8842 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/83677 | - |
dc.description.abstract | Amorphous GeO2-GeO-C (GeOx-C) composite powders, containing a small amount of the GeC phase, are prepared by a one-pot spray pyrolysis process. The GeOx-C composite powders have a completely spherical shape and are non-aggregated. The Ge 3d components in the XPS spectrum of the composite occupy 53.3%, 40.1%, and 6.6% of the total for GeO2, GeO, and GeC, respectively. The amount of amorphous carbon in the GeOx-C composite powder is estimated at 18.3%, based on the TG and XPS analysis. The initial discharge and charge capacities of the GeOx-C composite powders at a current density of 1 A g(-1) are 1873 and 908 mA h g(-1) respectively. The discharge capacities of the GeOx-C composite and commercial GeO2 powders for the 1200th cycle are 723 and 169 mA h g(-1), respectively, and their corresponding capacity retentions from the 2nd cycle are 70.1% and 19.0%, respectively. The high structural stability of the composite during repeated lithium insertion and desertion processes results in excellent long-term cycling performance. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.subject | LITHIUM-ION BATTERIES | - |
dc.subject | VERTICALLY ALIGNED GRAPHENE | - |
dc.subject | ANODE MATERIAL | - |
dc.subject | HIGH-CAPACITY | - |
dc.subject | STORAGE PROPERTIES | - |
dc.subject | CARBON COMPOSITE | - |
dc.subject | PERFORMANCE | - |
dc.subject | NANOPARTICLES | - |
dc.subject | LIFE | - |
dc.subject | NANOWIRES | - |
dc.title | Electrochemical properties of amorphous GeOx-C composite microspheres prepared by a one-pot spray pyrolysis process | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kang, Yun Chan | - |
dc.identifier.doi | 10.1016/j.ceramint.2017.01.076 | - |
dc.identifier.scopusid | 2-s2.0-85010508361 | - |
dc.identifier.wosid | 000397075900024 | - |
dc.identifier.bibliographicCitation | CERAMICS INTERNATIONAL, v.43, no.7, pp.5534 - 5540 | - |
dc.relation.isPartOf | CERAMICS INTERNATIONAL | - |
dc.citation.title | CERAMICS INTERNATIONAL | - |
dc.citation.volume | 43 | - |
dc.citation.number | 7 | - |
dc.citation.startPage | 5534 | - |
dc.citation.endPage | 5540 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Ceramics | - |
dc.subject.keywordPlus | LITHIUM-ION BATTERIES | - |
dc.subject.keywordPlus | VERTICALLY ALIGNED GRAPHENE | - |
dc.subject.keywordPlus | ANODE MATERIAL | - |
dc.subject.keywordPlus | HIGH-CAPACITY | - |
dc.subject.keywordPlus | STORAGE PROPERTIES | - |
dc.subject.keywordPlus | CARBON COMPOSITE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | LIFE | - |
dc.subject.keywordPlus | NANOWIRES | - |
dc.subject.keywordAuthor | Germanium oxide | - |
dc.subject.keywordAuthor | Carbon composite | - |
dc.subject.keywordAuthor | Anode material | - |
dc.subject.keywordAuthor | Lithium-ion batteries | - |
dc.subject.keywordAuthor | Spray pyrolysis | - |
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