Controllable seeding of nitrogen-doped carbon nanotubes on three-dimensional Co/C foam for enhanced dielectric loss and microwave absorption characteristics

Wang, Fengyuan; Liu, Yonglei; Zhao, Honghong; Cui, Liru; Gai, Lixue; Han, Xijiang; Du, Yunchen

doi:10.1016/j.cej.2022.138160

Cited by 56 publications

(48 citation statements)

References 54 publications

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“…As reported in previous studies, the high catalytic graphitization activity of Ni NPs contributes to the growth of CNTs, resulting in the emergence of protrusions on the CNF matrix. 32–34 Such nano-protrusions are beneficial for generating more hetero-interfaces and enhancing the interfacial polarization relaxation, thereby facilitating the dissipation of electromagnetic energy. 33,35…”

Section: Resultsmentioning

confidence: 99%

Nickel nanoparticle decorated N-doped carbon nanofibers for light weight and high-efficiency microwave absorption

et al. 2022

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Section: Resultsmentioning

confidence: 99%

Nickel nanoparticle decorated N-doped carbon nanofibers for light weight and high-efficiency microwave absorption

et al. 2022

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“…Electromagnetic pollution currently has irreversible effects on human health on the one hand and interferes with the operation of electronic equipment on the other hand. [1] Therefore, to solve the ubiquitous electromagnetic interference (EMI) problem, the demand for highperformance MAMs is extremely urgent. However, MAMs will be applied to more complex environments in the future, which require materials with more functions to adapt to different scenarios.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Shape Memory Composites for Joule Heating, Self‐Healing, and Highly Efficient Microwave Absorption

Liu

Wei

et al. 2022

Adv Funct Materials

102

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Traditional microwaves absorption materials (MAMs) are applied in the form of coatings, generally inflexible, with high production costs and poor adaptability to applications in different locations. The diversification of application scenarios requires materials with multifunctionalities, but it is extremely challenging to integrate multifunctionalities within single material at present. Herein, a multifunctional CoNC@GN/PCL/TPU MAMs is synthesized. The CoNC@GN nano‐micro absorber has high‐efficiency microwave absorption ability. The electromagnetic microwave absorption performance is ultra‐light (4 wt.%), ultra‐thin (2.3 mm), and broadband (6.21 GHz), which is better than similar MAMs. Additionally, the samples have highly efficient electro‐thermal conversion properties, enabling controlled electrical heating performance and excellent self‐healing properties. More remarkably, the sample has an electrically driven shape memory effect that allows the material to target the absorption of multi‐angle incident electromagnetic waves. Therefore, CoNC@GN/PCL/TPU absorbers are the key to truly opening up opportunities for flexible, shape memory, and multifunctional absorbers in frontier applications such as wearables, deformable robots, and chip protection.

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“…Although the rapid development of wireless communication technology and electrical equipment has increased convenience in people’s lives, problems such as electromagnetic interference and radiation, and electromagnetic leakage, have also increased [ 47 – 50 ]. The increasingly deteriorating electromagnetic environment not only endangers people’s health, but also interferes with the normal operation of all types of electronic equipment.…”

Section: Introductionmentioning

confidence: 99%

Green, Sustainable Architectural Bamboo with High Light Transmission and Excellent Electromagnetic Shielding as a Candidate for Energy-Saving Buildings

Wang

et al. 2022

Nano-Micro Lett.

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Currently, light-transmitting, energy-saving, and electromagnetic shielding materials are essential for reducing indoor energy consumption and improving the electromagnetic environment. Here, we developed a cellulose composite with excellent optical transmittance that retained the natural shape and fiber structure of bamboo. The modified whole bamboo possessed an impressive optical transmittance of approximately 60% at 6.23 mm, illuminance of 1000 luminance (lux), water absorption stability (mass change rate less than 4%), longitudinal tensile strength (46.40 MPa), and surface properties (80.2 HD). These were attributed to not only the retention of the natural circular hollow structure of the bamboo rod on the macro, but also the complete bamboo fiber skeleton template impregnated with UV resin on the micro. Moreover, a multilayered device consisting of translucent whole bamboo, transparent bamboo sheets, and electromagnetic shielding film exhibited remarkable heat insulation and heat preservation performance as well as an electromagnetic shielding performance of 46.3 dB. The impressive optical transmittance, mechanical properties, thermal performance, and electromagnetic shielding abilities combined with the renewable and sustainable nature, as well as the fast and efficient manufacturing process, make this bamboo composite material suitable for effective application in transparent, energy-saving, and electromagnetic shielding buildings.

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Controllable seeding of nitrogen-doped carbon nanotubes on three-dimensional Co/C foam for enhanced dielectric loss and microwave absorption characteristics

Cited by 56 publications

References 54 publications

Nickel nanoparticle decorated N-doped carbon nanofibers for light weight and high-efficiency microwave absorption

Nickel nanoparticle decorated N-doped carbon nanofibers for light weight and high-efficiency microwave absorption

Multifunctional Shape Memory Composites for Joule Heating, Self‐Healing, and Highly Efficient Microwave Absorption

Green, Sustainable Architectural Bamboo with High Light Transmission and Excellent Electromagnetic Shielding as a Candidate for Energy-Saving Buildings

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