Three-dimensional macroassembly of hybrid C@CoFe nanoparticles/reduced graphene oxide nanosheets towards multifunctional foam

Li, Jianjun; Yang, Shuang; Jiao, Pengzheng; Peng, Qingyu; Yin, Weilong; Yuan, Ye; Lu, Haibao; He, Xiaodong; Li, Yibin

doi:10.1016/j.carbon.2019.10.074

Cited by 82 publications

(25 citation statements)

References 50 publications

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“…The driving force usually relies on hydrogen bonding, van der Waals force (e.g., electrostatic force, hydrophobic force, π‐π interaction force) or cross‐linking reaction, ultrasound, etc. So that, the approaches are diversifying, such as cross‐stacking, [ 58–68 ] chemical redox reaction, [ 69–79 ] ice‐segregation‐induced self‐assembly (ISISA), [ 80–82 ] cross‐linking reaction, [ 86–90 ] as well as metal ion‐induced, flow‐directed, and evaporation‐induced self‐assembly. [ 94–96 ] In the following section, we are going to keep an insightful eye on four crucial approaches, and make a perspicacious comment on the approach‐structure‐response relationship to guide the design of smart devices in the future.…”

Section: Assembly Of 3d Nano–microarchitecturementioning

confidence: 99%

“…Nowadays, the capacitor‐like structure and equivalent circuit model are diffusely recognized by researchers, and proved to splendidly account for interface effects (e.g., micro‐capacitance and nano‐capacitance effect) in a variety of complex materials, including 3D hybrid architectures. [ 85–88 ]…”

Section: Assembly Of 3d Nano–microarchitecturementioning

confidence: 99%

“…At the same time, new technologies, new effects, new mechanisms, new materials, and new structures are bringing limitless vitalities to smart devices, and driving them towards integration, diversification, miniaturization, high performance, precision, and so on. [ 36–121 ] Nowadays, around 3D architectures and their smart devices, a new research hotspot in the interdisciplinary fields of physics, chemistry, materials, electronics, and other technical sciences is formed. Thousands of publications have been reported, with exponential growth.…”

Section: Introductionmentioning

confidence: 99%

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Assembling Nano–Microarchitecture for Electromagnetic Absorbers and Smart Devices

et al. 2020

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Smart devices, nowadays, are inspiring the infinite vitality and possibilities of intelligent life, such as self‐power electromagnetic (EM) nanogenerator and microsensor, smart window, thermally‐driven EM absorber, interstellar energy deliverer, and so on. Herein, the latest and most impressive works of 3D nano–micro architectures and their smart EM devices are highly focused on. The most key information, including assembly strategy and mechanism, EM response, and approach‐structure‐function relationship, is extracted and well‐organized with profundity and easy‐to‐understand approach. The merit and demerit are revealed by comparison. What’s more, the brightest and most cutting‐edge smart EM devices constructed by 3D nano–micro architectures are reported as highlights, and the device principles are deeply dissected. Finally, a profound and top comment on the fast‐growing field as well as challenges are proposed, and the future directions are predicted intelligently.

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Section: Assembly Of 3d Nano–microarchitecturementioning

confidence: 99%

Section: Assembly Of 3d Nano–microarchitecturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Assembling Nano–Microarchitecture for Electromagnetic Absorbers and Smart Devices

et al. 2020

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“…To tackle these obstacles, two typical strategies have been commonly employed to shape MA properties. One is to decorate magnetic component with carbon materials to develop magnetic-dielectric system and thereby boost the MA performance by enhancing dielectric loss and improving impedance matching [22][23][24][25][26][27][28][29][30][31]. For example, Cao et al designed Fe@NCNTs composite and showed MA performance of − 30.43 dB [32].…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Magnetic Network Constructed by CoFe Nanoparticles Suspended Within “Tubes on Rods” Matrix Toward Enhanced Microwave Absorption

Wang

et al. 2021

Nano-Micro Lett.

147

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Hierarchical magnetic-dielectric composites are promising functional materials with prospective applications in microwave absorption (MA) field. Herein, a three-dimension hierarchical “nanotubes on microrods,” core–shell magnetic metal–carbon composite is rationally constructed for the first time via a fast metal–organic frameworks-based ligand exchange strategy followed by a carbonization treatment with melamine. Abundant magnetic CoFe nanoparticles are embedded within one-dimensional graphitized carbon/carbon nanotubes supported on micro-scale Mo2N rod (Mo2N@CoFe@C/CNT), constructing a special multi-dimension hierarchical MA material. Ligand exchange reaction is found to determine the formation of hierarchical magnetic-dielectric composite, which is assembled by dielectric Mo2N as core and spatially dispersed CoFe nanoparticles within C/CNTs as shell. Mo2N@CoFe@C/CNT composites exhibit superior MA performance with maximum reflection loss of − 53.5 dB at 2 mm thickness and show a broad effective absorption bandwidth of 5.0 GHz. The Mo2N@CoFe@C/CNT composites hold the following advantages: (1) hierarchical core–shell structure offers plentiful of heterojunction interfaces and triggers interfacial polarization, (2) unique electronic migration/hop paths in the graphitized C/CNTs and Mo2N rod facilitate conductive loss, (3) highly dispersed magnetic CoFe nanoparticles within “tubes on rods” matrix build multi-scale magnetic coupling network and reinforce magnetic response capability, confirmed by the off-axis electron holography.

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“…EM wave absorbing materials can absorb and attenuate the incident EM wave, which provides an effective solution for the EM wave pollution [1,2]. With the continuous development of research and application of EM absorbing materials, the types of materials tend to be diversi ed and complicated [3,4]. The new EM absorbents need to to satisfy the characteristics of low thickness, lightweight, wide absorption frequency bandwidth and strong absorption performance [5,6].…”

Section: Introductionmentioning

confidence: 99%

Nickel Carbon Composite With Carbon Nanotubes for Efficient Electromagnetic Wave Absorption

Qiu

Yang²,

Li³

et al. 2020

Preprint

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Nickel carbon composite with carbon nanotubes (Ni-C/CNTs) has been fabricated by pyrolysis the mixture of nickel-based metal organic framework (Ni-MOF) and melamine. The resultant Ni-C/CNTs composite is assembled from one-dimensional (1D) CNTs and three dimensional (3D) spherical Ni-C composite. Besides, the Ni-C/CNTs composite contains abundant nitrogen(N) dopants that contributes to defect dipole polarization. The diameter and length of CNTscan beeffected by changing the mass ratio of Ni-MOF and melamine. The optimizedNi-C/CNTs composite exhibits reflection loss of -55.1 dB at 10.56 GHz, and the effective absorbing bandwidth (reflection loss < -10 dB) is 11.2 GHz (6.0-17.2 GHz)with the thickness range of 1.5-4.0 mm, when the mass ratio of Ni-MOF: melamine is 1: 2. These results indicate that the mixed 1D-3D hierarchical architecture synergistically improves electromagnetic wave absorption properties. This strategy willcontribute for fabricating the carbon hybrid network consisting of metal organic frameworks derived metal/carbon hybrid and CNTs for electromagnetic wave absorption.

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Three-dimensional macroassembly of hybrid C@CoFe nanoparticles/reduced graphene oxide nanosheets towards multifunctional foam

Cited by 82 publications

References 50 publications

Assembling Nano–Microarchitecture for Electromagnetic Absorbers and Smart Devices

Assembling Nano–Microarchitecture for Electromagnetic Absorbers and Smart Devices

Hierarchical Magnetic Network Constructed by CoFe Nanoparticles Suspended Within “Tubes on Rods” Matrix Toward Enhanced Microwave Absorption

Nickel Carbon Composite With Carbon Nanotubes for Efficient Electromagnetic Wave Absorption

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