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DC Field | Value | Language |
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dc.citation.endPage | 4408 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 4403 | - |
dc.citation.title | CHEMISTRY OF MATERIALS | - |
dc.citation.volume | 28 | - |
dc.contributor.author | Lee, Kyung Joo | - |
dc.contributor.author | Choi, Sinho | - |
dc.contributor.author | Park, Soojin | - |
dc.contributor.author | Moon, Hoi Ri | - |
dc.date.accessioned | 2023-12-21T23:39:44Z | - |
dc.date.available | 2023-12-21T23:39:44Z | - |
dc.date.created | 2016-07-11 | - |
dc.date.issued | 2016-06 | - |
dc.description.abstract | Herein, we develop a general synthetic route to obtain composites of porous carbon and electrochemically active metal particles such as Ge, In, Bi, and Sn. The thermolysis of a Zn-based metal-organic framework (MOF) produces hierarchically porous carbon (HPC) and metallic Zn at high temperatures, which can act as a reducing agent of metal oxides. In the reaction system of a Zn-based MOF with GeO2, in situ evolved Zn reduces GeO2, producing Ge and ZnO. Interestingly, ZnO is automatically reduced to Zn via a carbothermic reduction during the conversion process, which returns reducing agent to the reaction. Thus, the repeated occurrence of the zincothermic and carbothermic reduction reactions promotes a recyclable redox-metallothermic reaction. After complete reduction of GeO2, Zn metal is spontaneously vaporized to yield Ge/HPC composites. This facile method can be successfully extended to other metal oxides including In2O3, Bi2O3, and SnO. The as-synthesized Ge/HPC is tested as a rechargeable battery anode material, which exhibits a reversible capacity as high as ∼600 mA h g-1 after 300 cycles at a rate of 0.5 C and a low electrode volume expansion (less than 30%). | - |
dc.identifier.bibliographicCitation | CHEMISTRY OF MATERIALS, v.28, no.12, pp.4403 - 4408 | - |
dc.identifier.doi | 10.1021/acs.chemmater.6b01459 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.scopusid | 2-s2.0-85009067864 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/19991 | - |
dc.identifier.url | http://pubs.acs.org/doi/abs/10.1021/acs.chemmater.6b01459 | - |
dc.identifier.wosid | 000378973100035 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | General Recyclable Redox-Metallothermic Reaction Route to Hierarchically Porous Carbon/Metal Composites | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Materials Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | METAL-ORGANIC FRAMEWORK | - |
dc.subject.keywordPlus | LITHIUM-ION BATTERIES | - |
dc.subject.keywordPlus | HIGH-SURFACE-AREA | - |
dc.subject.keywordPlus | NANOPOROUS CARBON | - |
dc.subject.keywordPlus | COORDINATION-POLYMER | - |
dc.subject.keywordPlus | DIRECT CARBONIZATION | - |
dc.subject.keywordPlus | ANODE MATERIAL | - |
dc.subject.keywordPlus | DOPED CARBON | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | GERMANIUM | - |
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