Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 좌용호 | - |
dc.date.accessioned | 2020-01-13T01:18:18Z | - |
dc.date.available | 2020-01-13T01:18:18Z | - |
dc.date.issued | 2019-03 | - |
dc.identifier.citation | ACS APPLIED MATERIALS & INTERFACES, v. 11, No. 12, Page. 11824-11833 | en_US |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.issn | 1944-8252 | - |
dc.identifier.uri | https://pubs.acs.org/doi/10.1021/acsami.9b01519 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/121690 | - |
dc.description.abstract | Nanoparticle/graphene hybrid composites have been of great interest in various disciplines due to their unique synergistic physicochemical properties. In this study, we report a facile and generalized synthesis method for preparing nanoparticle/exfoliated graphene (EG) composites by tailored electrostatic interactions. EG was synthesized by an electrochemical method, which produced selectively oxidized graphene sheets at the edges and grain boundaries. These EG sheets were further conjugated with polyethyleneimine to provide positive charges at the edges. The primary organic ligands of the colloidal nanoparticles were exchanged with Cl- or MoS42- anions, generating negatively charged colloidal nanoparticles in polar solvents. By simple electrostatic interactions between the EG and nanoparticles in a solution, nanoparticles were controllably assembled at the edges of the EG. Furthermore, the generality of this process was verified for a wide range of nanoparticles, such as semiconductors, metals, and magnets, on the EG. As a model application, designed composites with size-controlled FeCo nanoparticle/EG were utilized as electromagnetic interference countermeasure materials that showed a size-dependent shift of the frequency ranges on the electromagnetic absorption properties. The current generalized process will offer great potential for the large-scale production of well-designed graphene nanocomposites for electronic and energy applications. | en_US |
dc.description.sponsorship | This research was supported by the Nano-Material Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (MSIT) (NRF-2016M3A7B4900044 and NRF-2018M3A7B8060697) and the 2018 Research Fund (1.180028.01) of UNIST (Ulsan National Institute of Science and Technology). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | AMER CHEMICAL SOC | en_US |
dc.subject | nanoparticles | en_US |
dc.subject | exfoliated graphene | en_US |
dc.subject | composite | en_US |
dc.subject | electrostatic interaction | en_US |
dc.subject | electromagnetic interference shielding | en_US |
dc.title | Controlled Grafting of Colloidal Nanoparticles on Graphene through Tailored Electrostatic Interaction | en_US |
dc.type | Article | en_US |
dc.relation.no | 12 | - |
dc.relation.volume | 11 | - |
dc.identifier.doi | 10.1021/acsami.9b01519 | - |
dc.relation.page | 11824-11833 | - |
dc.relation.journal | ACS APPLIED MATERIALS & INTERFACES | - |
dc.contributor.googleauthor | Baek, Seongheon | - |
dc.contributor.googleauthor | Kim, Jinu | - |
dc.contributor.googleauthor | Kim, Han | - |
dc.contributor.googleauthor | Park, Sangmin | - |
dc.contributor.googleauthor | Ban, Hyeong Woo | - |
dc.contributor.googleauthor | Gu, Da Hwi | - |
dc.contributor.googleauthor | Jeong, Hyewon | - |
dc.contributor.googleauthor | Kim, Fredrick | - |
dc.contributor.googleauthor | Lee, Joonsik | - |
dc.contributor.googleauthor | Jung, Byung Mun | - |
dc.contributor.googleauthor | Choa, Yong-Ho | - |
dc.contributor.googleauthor | Kim, Ki Hyeon | - |
dc.contributor.googleauthor | Son, Jae Sung | - |
dc.relation.code | 2019002549 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF ENGINEERING SCIENCES[E] | - |
dc.sector.department | DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING | - |
dc.identifier.pid | choa15 | - |
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