Wood biomass-derived carbon for high-performance electromagnetic wave absorbing and shielding

Liu, Chang; Han, Mingrui; Lin, Jingpeng; Liu, Wei; Liu, Jiurong; Zeng, Zhihui

doi:10.1016/j.carbon.2023.03.067

Cited by 45 publications

(9 citation statements)

References 141 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The profiles suggest that the RL min and EAB max shift to a lower thickness (Supporting Information, Figure S3). According to the quarter wavelength (1/4λ) matching model, − the RL min and EAB max of the wave absorbing materials usually shift to small thickness with the increase of frequency, as the wavelength of electromagnetic wave decreases with the increase of frequency. Figure g–i depicts the impedance matching changes with frequency and thickness.…”

Section: Resultsmentioning

confidence: 99%

Hollow Co_0.85Se@MoSe₂ with Core–Sheath Structures Derived from Co Microchains for High Efficiency Electromagnetic Wave Absorption

Zan

Chen

et al. 2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Hollow and hierarchical structures are the desirable features for high-performance electromagnetic wave absorbing (EWA) materials. In this study, Co microchains were used as a matrix and a layer of MoSe 2 nanosheets and nanospheres was loaded onto their surface through a one-step hydrothermal reaction. During this process, Co cations migrated from the inside to the outside of the nanowire and combined with Se anions to form hollow Co 0.85 Se microchains and the MoSe 2 on the surface contributed to a hierarchical structure. The prepared Co 0.85 Se@ MoSe 2 composites showed dielectric and magnetic losses simultaneously, achieving a minimum reflection loss (RL min ) of −42.6 dB and an effective absorbing bandwidth (EAB) of 10 GHz (6.8−10.6 and 11.8−18 GHz) at the thickness of 2.3 mm. Co 0.85 Se@MoSe 2 microchains were successfully synthesized for the first time using a cost-effective and simple solvothermal reaction. This work sheds light on the large-scale synthesis of Co-based microchains as well as a promising EWA material with a specific structure and multiple loss modes.

show abstract

Section: Resultsmentioning

confidence: 99%

Hollow Co_0.85Se@MoSe₂ with Core–Sheath Structures Derived from Co Microchains for High Efficiency Electromagnetic Wave Absorption

Zan

Chen

et al. 2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…As a result, the lighter, thinner and flexible EMI films have become a research hotspot. Till now, carbon materials, including carbon black, graphene, C 60 , carbon nanotubes, carbon fibers, and other allotropes, have a series of advantages such as lightweight, easy processing, good chemical stability, high conductivity, and high‐temperature resistance, which can act as the ideal substitutes for high‐performance EMI shielding materials 10–14 …”

Section: Introductionmentioning

confidence: 99%

Carbon nanotube films embedded with Cu@C nanocubes for electromagnetic interference shielding

Wang

Luo

et al. 2023

Journal of Polymer Science

View full text Add to dashboard Cite

Flexible carbon tube films for electromagnetic interference (EMI) shielding are assembled by mixing the well‐aligned Cu@C core‐shell nanocubes with multi‐walled carbon nanotubes (MWCNTs). The Cu@C core‐shell nanocubes are achieved by the thermal pyrolysis of polyvinylpyrrolidone (PVP) coating on Cu2O nanocubes. With the optimal PVP concentration of 1.5 mg/mL, the Cu@C/MWCNTs composite film with ultra‐thin thickness (52.2 μm) displays good conductivity of 12.5 S cm−1 and excellent specific EMI shielding value of 510.73 dB mm−1, which is higher than the pure MWCNTs film (439.50 dB mm−1) under the same weight condition. Moreover, the 1.5 mg/mL‐Cu@C/MWCNTs composite film exhibits highly mechanical repeatability after being bended for 10,000 cycles. The carbon layers protecting metal nanoparticles can partly replace precious carbon nanotubes to construction highly flexible composite film with anticipated electrical conductivity, which have a good application prospect for thin, lightweight and flexible EMI shielding fields.

show abstract

“…This focus has emerged from the pursuit of high-performance materials for absorbing and shielding electromagnetic waves (EMWs), which are characterized by their robust shielding capabilities, lightweight nature, low thickness, and broad operating bandwidth range. [5,6] Traditionally, metals are used for absorbing and shielding EMW; however, their applications are restricted due to excessive weight, limited flexibility, and susceptibility to corrosion. [7,8] Researchers have been looking for a new material to balance suitable mechanical properties, high-energy-storage devices with high efficiency, strong durability, and high conductivity without compromising other properties.…”

mentioning

confidence: 99%

“…[33] Cellulose, one of the most abundant natural biopolymers, with lightweight, renewable, degradable, and nonpolluting qualities, is the Earth's most abundant natural organic polymer and has excellent potential for applications. [6] It is a suitable candidate for replacing synthetic plastic polymers. This material (cellulose) is a viable replacement for petroleum-based goods since it is nontoxic, biodegradable, renewable, and good for the environment.…”

mentioning

confidence: 99%

“…[2] A product of cellulose, nanocellulose, including cellulose nanocrystal (CNC), cellulose nanofiber (CNF), etc., becomes an ideal precursor for carbon-based porous materials or carbon hybrid materials. [6] Furthermore, cellulose is a magnetic material that can be used to develop multifunctional composites such as hydrogel and aerogel. The hydrogel and hydrogel-based composites EMI shields were categorized as hydrogels embedded with various inorganic conductive nanomaterials, integrated with conductive polymers and other functionalities.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Recent Advancements of MXene/Nanocellulose‐Based Hydrogel and Aerogel: A Review

Ahmed,

Hossain,

Al Parvez

et al. 2023

Adv Energy and Sustain Res

View full text Add to dashboard Cite

MXenes have been highly attractive to researchers owing to their layered nanostructure, excellent electrical conductivity, and abundance of functional groups. Meanwhile, nanocellulose materials, known for their biodegradability, renewability, compatibility with living organisms, and cost‐effectiveness, have emerged as a popular choice for material selection researchers. Recent research has discovered that combining nanocellulose with MXenes can improve the mechanical properties of MXenes, resulting in composite materials with remarkable electrical and mechanical properties. This article provides an overview of the three main types of nanocellulose: cellulose nanofiber, cellulose nanocrystal, and bacterial cellulose. It also discusses various synthesis methods for MXenes, including MXene/nanocellulose‐based hydrogel and aerogel. Additionally, the article highlights the multiple uses of MXene/nanocellulose composites in different fields, including flexible sensing materials, electromagnetic shielding, energy storage structures, and wearable health monitoring. This review covers distinctive characteristics and unique MXene/nanocellulose composite behaviors, their recent advancements in MXene/nanocellulose synthesis, and applications. Moving forward, the potential for these materials to be used innovatively with anticipation of taking the MXene/nanocellulose‐based research further steps across the respective scientific community.

show abstract

Wood biomass-derived carbon for high-performance electromagnetic wave absorbing and shielding

Cited by 45 publications

References 141 publications

Hollow Co_0.85Se@MoSe₂ with Core–Sheath Structures Derived from Co Microchains for High Efficiency Electromagnetic Wave Absorption

Hollow Co_0.85Se@MoSe₂ with Core–Sheath Structures Derived from Co Microchains for High Efficiency Electromagnetic Wave Absorption

Carbon nanotube films embedded with Cu@C nanocubes for electromagnetic interference shielding

Recent Advancements of MXene/Nanocellulose‐Based Hydrogel and Aerogel: A Review

Contact Info

Product

Resources

About

Wood biomass-derived carbon for high-performance electromagnetic wave absorbing and shielding

Cited by 45 publications

References 141 publications

Hollow Co0.85Se@MoSe2 with Core–Sheath Structures Derived from Co Microchains for High Efficiency Electromagnetic Wave Absorption

Hollow Co0.85Se@MoSe2 with Core–Sheath Structures Derived from Co Microchains for High Efficiency Electromagnetic Wave Absorption

Carbon nanotube films embedded with Cu@C nanocubes for electromagnetic interference shielding

Recent Advancements of MXene/Nanocellulose‐Based Hydrogel and Aerogel: A Review

Contact Info

Product

Resources

About

Hollow Co_0.85Se@MoSe₂ with Core–Sheath Structures Derived from Co Microchains for High Efficiency Electromagnetic Wave Absorption

Hollow Co_0.85Se@MoSe₂ with Core–Sheath Structures Derived from Co Microchains for High Efficiency Electromagnetic Wave Absorption