Solvothermal synthesis of three-dimensional, Fe<sub>2</sub>O<sub>3</sub>NPs-embedded CNT/N-doped graphene composites with excellent microwave absorption performance

Zhou, Nan; An, Qingda; Xiao, Zuoyi; Zhai, Shangru; Shi, Zhan

doi:10.1039/c7ra06751h

Cited by 74 publications

(30 citation statements)

References 63 publications

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“…It suggests that the existence of multiple dielectric relaxations in the electromagnetic wave absorption processes. Besides, the Cole–Cole semicircles are distorted, which implys there are other processes (conductive loss, Maxwell–Wagner relaxation, and dipolar polarization) [ 26 ].…”

Section: Resultsmentioning

confidence: 99%

One-Pot Hydrothermal Preparation of Fe3O4 Decorated Graphene for Microwave Absorption

Chen

Zhang

et al. 2020

Materials

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Fe3O4 decorated graphene was synthesized for electromagnetic wave absorption via a facile one-pot hydrothermal approach. The structure and morphology of the as-prepared nanomaterials were systematically investigated. The graphene oxide (GO) was reduced and Fe3O4 nanoparticles were evenly decorated on the surface of reduced graphene oxide (rGO) nanosheets. The average particle size of Fe3O4 nanoparticles is about 15.3 nm. The as-prepared rGO-Fe3O4 nanocomposites exhibited a good microwave absorption performance because of the combination of graphene and magnetic Fe3O4. When the thicknesses are 1.6 mm and 6.5 mm, the reflection loss (RL) values are up to −34.4 dB and −37.5 dB, respectively. The effective bandwidths are 3.8 and 1.9 GHz.

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Section: Resultsmentioning

confidence: 99%

One-Pot Hydrothermal Preparation of Fe3O4 Decorated Graphene for Microwave Absorption

Chen

Zhang

et al. 2020

Materials

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“…The synthesis of nanocomposites consisting of β‐FeSe NSs and SrTiO 3‐ x NPs was performed using a similar solvothermal procedure for preparing β‐FeSe NSs . In this case, however, FeCl 2 , Se, and NaOH were reacted in the presence of SrTiO 3‐ x NPs.…”

Section: Resultsmentioning

confidence: 99%

Solvothermal Synthesis and Interfacial Magnetic Interaction of β‐FeSe/SrTiO_3‐x Nanocomposites

et al. 2020

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Hybridization of nanomaterials, combined by interfacial fusion, have drawn tremendous interests because of their novel properties induced by structurally matched interfaces. Here we report a solvothermal route that can synthesize β-FeSe/SrTiO 3-x composites made of β-FeSe nanosheets (NSs) and SrTiO 3-x nanoparticles (NPs). Various spectroscopic data such as XRD, SEM, and TEM with elemental maps confirm the formation of nanocomposite architecture. Electron microscopy images of β-FeSe/SrTiO 3-x show that small SrTiO 3-x NPs in the cuboidal form are firmly bound to a sizable β-FeSe sheet with a thickness of several nanometers. The β-FeSe/SrTiO 3-x composite shows paramagnetic, which was determined using a SQUID magnetometer. The ferromagnetic property of individual FeSe NPs appears to be suppressed by interfacial interaction between β-FeSe and SrTiO 3-x , clearly showing the presence of the proximity-induced effect in the nanocomposites.

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“…Note that the N-H group appeared because EDA with an amine group was used in the Cu-NW synthesis. After the CNTs were grown on the G/Cu-NW, the intensities of the carbon groups increased, and the intensity of N-H bend vibration reduced because of CNT growth on G/Cu-NW [34,35]. Also, C-O stretching vibration (at 1462 cm −1 ) and C-O stretching vibration (1262 cm −1 ) were created.…”

Section: Characteristics Of 3dc Cu-nwmentioning

confidence: 99%

Synthesis of Three-Dimensional Carbon Nanostructure/Copper Nanowire for Additive Interface Layer of Ionic Polymer Metal Composite

Park

Seonpil

et al. 2020

Nanomaterials

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Additive interface materials for improved ionic polymer metal composite (IPMC) actuator performance are being investigated. In this study, three-dimensional carbon nanostructure/copper nanowire (3DC Cu-NW) with a novel structure was synthesized via low-pressure chemical vapor deposition. An IPMC actuator with a 3DC Cu-NW interface layer was fabricated, which exhibited improved actuation performance, long-term stability, and electrochemical properties. The proposed 3DC consists of carbon nanotubes (CNTs) and graphene, grown using an Fe catalyst and CH4 gas, respectively. We optimized the growth conditions (Fe catalyst: 12.5 mg/L, CH4: 20 sccm) to achieve a 3DC with an appropriate thickness and a large specific surface area. The 3DC Cu-NW benefited from a Cu oxidation prevention property and a large specific surface area. The electrochemical properties and actuation performance of the IPMC actuator improved with an increased 3DC Cu-NW concentration. An IPMC actuator with a 0.6 wt% 3DC Cu-NW interface layer exhibited 1.3- and 5.6-fold electrochemical property and actuation performance improvement, respectively, over an IPMC actuator with no 3DC Cu-NW interface layer. These results show that the proposed 3DC Cu-NW has potential as an IPMC actuator interface material, and that 3DC Cu-NW synthesis and application technology can be applied to future research on sensor, actuator, and flexible devices.

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Solvothermal synthesis of three-dimensional, Fe₂O₃NPs-embedded CNT/N-doped graphene composites with excellent microwave absorption performance

Abstract: Superior electromagnetic-wave absorbing composites resulting from the integrative features of N-doped graphene, embedded Fe2O3 NPs and CNTs and three-dimensional structures were facilely prepared via a single-step solvothermal method.

Cited by 74 publications

References 63 publications

One-Pot Hydrothermal Preparation of Fe3O4 Decorated Graphene for Microwave Absorption

One-Pot Hydrothermal Preparation of Fe3O4 Decorated Graphene for Microwave Absorption

Solvothermal Synthesis and Interfacial Magnetic Interaction of β‐FeSe/SrTiO_3‐x Nanocomposites

Synthesis of Three-Dimensional Carbon Nanostructure/Copper Nanowire for Additive Interface Layer of Ionic Polymer Metal Composite

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Solvothermal synthesis of three-dimensional, Fe2O3NPs-embedded CNT/N-doped graphene composites with excellent microwave absorption performance

Abstract: Superior electromagnetic-wave absorbing composites resulting from the integrative features of N-doped graphene, embedded Fe2O3 NPs and CNTs and three-dimensional structures were facilely prepared via a single-step solvothermal method.

Cited by 74 publications

References 63 publications

One-Pot Hydrothermal Preparation of Fe3O4 Decorated Graphene for Microwave Absorption

One-Pot Hydrothermal Preparation of Fe3O4 Decorated Graphene for Microwave Absorption

Solvothermal Synthesis and Interfacial Magnetic Interaction of β‐FeSe/SrTiO3‐x Nanocomposites

Synthesis of Three-Dimensional Carbon Nanostructure/Copper Nanowire for Additive Interface Layer of Ionic Polymer Metal Composite

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Solvothermal synthesis of three-dimensional, Fe₂O₃NPs-embedded CNT/N-doped graphene composites with excellent microwave absorption performance

Solvothermal Synthesis and Interfacial Magnetic Interaction of β‐FeSe/SrTiO_3‐x Nanocomposites