Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 손대원 | - |
dc.date.accessioned | 2020-09-07T05:51:43Z | - |
dc.date.available | 2020-09-07T05:51:43Z | - |
dc.date.issued | 2019-08 | - |
dc.identifier.citation | SYNTHETIC METALS, v. 254, Page. 68-74 | en_US |
dc.identifier.issn | 0379-6779 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0379677919302899?via%3Dihub | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/153607 | - |
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@mSiO(2)) is reported. For better adhesion of Fe3O4@mSiO(2) on the rGO sheets, the surface of the Fe3O4@mSiO(2) 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. | en_US |
dc.description.sponsorship | This research was supported by the National Research Foundation of Korea (NRF) (NRF-2019M2D2A1A02059677), Korea. Tung and Quyen thanks to the financial support from VAST (Grant No. NCVCC 06.08/19-19), Vietnam. | en_US |
dc.language.iso | en | en_US |
dc.publisher | ELSEVIER SCIENCE SA | en_US |
dc.subject | Reduced graphene oxide | en_US |
dc.subject | Fe3O4 | en_US |
dc.subject | Mesoporous silica | en_US |
dc.subject | Electromagnetic absorber | en_US |
dc.subject | X-Ku band | en_US |
dc.title | Attenuation of electromagnetic microwaves by a sandwich-like hybrid nanocomposite of reduced graphene oxide and amine-functionalized magnetic mesoporous silica | en_US |
dc.type | Article | en_US |
dc.relation.volume | 254 | - |
dc.identifier.doi | 10.1016/j.synthmet.2019.06.007 | - |
dc.relation.page | 68-74 | - |
dc.relation.journal | SYNTHETIC METALS | - |
dc.contributor.googleauthor | Thi, Quyen Vu | - |
dc.contributor.googleauthor | Tung, Ngo Trinh | - |
dc.contributor.googleauthor | Sohn, Daewon | - |
dc.relation.code | 2019002090 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF NATURAL SCIENCES[S] | - |
dc.sector.department | DEPARTMENT OF CHEMISTRY | - |
dc.identifier.pid | dsohn | - |
dc.identifier.researcherID | R-9180-2017 | - |
dc.identifier.orcid | https://orcid.org/0000-0002-7200-9683 | - |
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