MoS2-decorated carbonized melamine foam/reduced graphene oxide network for constructing polyethylene-glycol-based multifunctional phase change materials toward multiple energy harvesting and microwave absorbing applications

Hu, Zhicong; Jiang, Menghe; Zou, Yongjin; Sun, Lixian; Xu, Fen; Yu, Sensen; Hao, Sijia; Xiang, Cuili

doi:10.1016/j.cej.2023.141923

Cited by 24 publications

(6 citation statements)

References 59 publications

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“…Compared with the sample with 40 wt.% and 60 wt.% ZnO/C absorbent content, the ZnO/C-filled paraffin composite sample filled with 50 wt.% absorbent content presents the favorable reflection loss of −25.64 dB and optimal effective absorption bandwidth of 2.21 GHz. Table 2 exhibits the microwave absorption properties of ZnO/C composite absorbent and some other reported composites filled with ZnO or C absorbents [32][33][34][35][36][37][38][39][40]. In contrast, the investigated ZnO/C composite absorbent in this work presents favorable microwave absorption properties.…”

Section: Microwave Absorption Propertiesmentioning

confidence: 84%

Tunable Complex Permittivity and Strong Microwave Absorption Properties of Novel Dielectric-Conductive ZnO/C Hybrid Composite Absorbents

Yan

Jia

Zhou

et al. 2023

Metals

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Modern electronic information technology has led social life into inevitable electromagnetic pollution, making microwave absorbing materials more and more important. Herein, dielectric-conductive ZnO/C hybrid composite absorbents were prepared by two-step carbonization with ZnO powders and glucose as critical materials. The electrical conductivity, complex permittivity, and reflection loss were analyzed to study the dielectric and microwave absorption properties. Results show that the prepared ZnO/C composite absorbents exist in the form of rod-like ZnO dispersed in the irregular block carbon, and the complex permittivity of the composite absorbents can be adjusted via varying the carbonization temperature. The minimum reflection loss of −25.64 dB is achieved at 1.8 mm thickness for the composite absorbent with 50 wt.% absorbent content as the final carbonization temperature is 750 °C, and the optimum effective absorption bandwidth is 2.21 GHz at 9.64–11.85 GHz. The excellent microwave absorption properties of ZnO/C composite absorbents are attributed to the combination actions of dipole polarization, conductance loss, and interface polarization, which is significant for the purposeful design of superior microwave-absorbing materials with dielectric and conductive absorbents.

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Section: Microwave Absorption Propertiesmentioning

confidence: 84%

Tunable Complex Permittivity and Strong Microwave Absorption Properties of Novel Dielectric-Conductive ZnO/C Hybrid Composite Absorbents

Yan

Jia

Zhou

et al. 2023

Metals

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“…In order to accurately compare the effect of the support structure with enthalpy value on the crystallization properties of PCGs, we compared the enthalpy efficiency ( χ ), the crystallinity ( X c ) and the number of crystallized CH 2 and CH 3 groups ( n c ) in the side chains of PA18, SS-PCAs and PCGs, 56–58 which were calculated according to eqn (7), (8) and (9), respectively:where, Δ H m and Δ H c respectively denote the melting and crystallization latent heats of SS-PCAs and PCGs. For SS-PCAs, Δ H m x and Δ H c x represent the melting and crystallization latent heats of PA18, with ω set to a numerical value of 1.…”

Section: Resultsmentioning

confidence: 99%

Section: Thermal Behavior Of Ss-pcas and Pcgs Compositesmentioning

confidence: 99%

Octadecyl acrylate-based self-supporting elastic phase change framework materials for the enhancement of photovoltaic conversion efficiency

Qian,

Tan,

et al. 2024

Green Chem.

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“…(A) Schematic illustration of the electro‐driven energy conversion device; (B) Electro‐driven energy conversion performance of CF0.6@BN‐PPEGMA and CF0.6‐PPEGMA; (C) Electro‐driven energy conversion performance under different voltages; (D) Comparison of driven voltage and energy storage efficiency between this work and other literature on PCMs 10,16,18,36–42 ; (E) Electro‐driven cycle behavior of the heat patch; (F) Picture of the heat patch during use; (G) IR thermal image of the heat patch and CF0.6@BN‐PDMS.…”

Section: Resultsmentioning

confidence: 99%

Anisotropic electro‐driven phase change materials inspired by biological structure

Jia,

Li,

Wang

et al. 2024

AIChE Journal

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Electro‐driven phase change materials (PCMs) can effectively realize electrothermal conversion and storage and have attracted much attention in the fields of electrothermal therapy and thermal management of electronic devices. How to effectively reduce the leakage current risk of it is a core problem in the application process. In this work, we used carbon fibers and boron nitride to mimic the microstructure of Greta oto butterfly's wing, and composite it with a form‐stable PCM‐PPEGMA to obtain a thermally conductive enhanced anisotropic electro‐driven PCM. The material exhibits high electrothermal conversion and storage efficiency (86.76%, 5 V), high thermal conductivity, excellent electrical anisotropy, and thermal stability because of the well‐designed spatial arrangement. The unique bionic structure effectively inhibits the conductive isotropy phenomenon of traditional electro‐driven PCMs and significantly reduces the risk of leakage current. On the basis of this situation, the system shows great application potential in the field of electrothermal therapy.

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MoS2-decorated carbonized melamine foam/reduced graphene oxide network for constructing polyethylene-glycol-based multifunctional phase change materials toward multiple energy harvesting and microwave absorbing applications

Cited by 24 publications

References 59 publications

Tunable Complex Permittivity and Strong Microwave Absorption Properties of Novel Dielectric-Conductive ZnO/C Hybrid Composite Absorbents

Tunable Complex Permittivity and Strong Microwave Absorption Properties of Novel Dielectric-Conductive ZnO/C Hybrid Composite Absorbents

Octadecyl acrylate-based self-supporting elastic phase change framework materials for the enhancement of photovoltaic conversion efficiency

Anisotropic electro‐driven phase change materials inspired by biological structure

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