Attenuation of electromagnetic microwaves by a sandwich-like hybrid nanocomposite of reduced graphene oxide and amine-functionalized magnetic mesoporous silica
DC Field | Value | Language |
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dc.contributor.author | Thi, Quyen Vu | - |
dc.contributor.author | Tung, Ngo Trinh | - |
dc.contributor.author | Sohn, Daewon | - |
dc.date.accessioned | 2021-08-02T11:26:22Z | - |
dc.date.available | 2021-08-02T11:26:22Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2019-08 | - |
dc.identifier.issn | 0379-6779 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/13244 | - |
dc.description.abstract | A hybrid composite with a sandwich-like structure constructed from reduced graphene oxide (rGO) and magnetic Fe3O4 particles coated mesoporous SiO2 (Fe3O4@mSiO2) is reported. For better adhesion of Fe3O4@mSiO2 on the rGO sheets, the surface of the Fe3O4@mSiO2 was modified with amonopropyltriethoxysilane to form amine-functionalized magnetic mesoporous silica (AMS). The anchoring of AMS particles on the surface of rGO in the resulting reduced graphene oxide/amine-functionalized magnetic mesoporous silica (rGAMS) hybrid greatly improved exfoliation of the rGO sheets. The as-synthesized rGAMS readily absorbed microwave radiation in epoxy composites. An rGAMS absorber with 10 wt% filler loading had an effective absorption bandwidth of 9.8 GHz in the frequency from 8.2 to 18 GHz, and the minimum reflection loss was -49.4 dB at 13.4 GHz. The adhesion of AMS particles not only induced a high specific surface area, but also acted as loci for microwave entrapment due to magnetic loss caused by their intrinsic porosity. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Attenuation of electromagnetic microwaves by a sandwich-like hybrid nanocomposite of reduced graphene oxide and amine-functionalized magnetic mesoporous silica | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Sohn, Daewon | - |
dc.identifier.doi | 10.1016/j.synthmet.2019.06.007 | - |
dc.identifier.scopusid | 2-s2.0-85066958027 | - |
dc.identifier.wosid | 000476551000010 | - |
dc.identifier.bibliographicCitation | SYNTHETIC METALS, v.254, pp.68 - 74 | - |
dc.relation.isPartOf | SYNTHETIC METALS | - |
dc.citation.title | SYNTHETIC METALS | - |
dc.citation.volume | 254 | - |
dc.citation.startPage | 68 | - |
dc.citation.endPage | 74 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.subject.keywordPlus | WAVE ABSORPTION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | PARTICLES | - |
dc.subject.keywordPlus | SHELL | - |
dc.subject.keywordPlus | CORE | - |
dc.subject.keywordPlus | COMPOSITES | - |
dc.subject.keywordPlus | REMOVAL | - |
dc.subject.keywordAuthor | Reduced graphene oxide | - |
dc.subject.keywordAuthor | Fe3O4 | - |
dc.subject.keywordAuthor | Mesoporous silica | - |
dc.subject.keywordAuthor | Electromagnetic absorber | - |
dc.subject.keywordAuthor | X-Ku band | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0379677919302899?via%3Dihub | - |
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