Electrospinning preparation of hollow porous Sn0.84Sm0.08Sb0.08O2 micro/nano fibers and their multispectral compatible stealth properties

Xia, Yuanjia; Zhao, Fang; Cheng, Zhaogang; Li, Zhizun; Xu, Bin

doi:10.1016/j.ceramint.2022.07.164

Cited by 9 publications

(3 citation statements)

References 28 publications

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“…Carbon nanofibers (CNFs) have garnered substantial attention due to their exceptional mechanical strength, low density, superior electrical conductivity, and remarkable adsorption capabilities. − These exceptional properties make CNFs highly promising for a broad range of applications, including aerospace, energy, catalysis, and various industrial sectors. − Porous carbon nanofibers (PCNFs) offer not only reduced weight but also an increased specific surface area, thereby enhancing their adsorption and filtration performance. − The spinning methods used to fabricate hollow and porous fibers include coaxial spinning, , phase separation, and template method . However, these techniques encounter significant challenges of low production efficiency and considerable quality variations, which hinder the large-scale and cost-effective production of porous carbon fibers. − Additionally, a critical impediment to the efficient development of PCNFs is intricate control of the pore structure. Therefore, efficient preparation methods for synthesizing PCNFs with high specific surface areas and superior adsorption capabilities are essential for effective application.…”

Section: Introductionmentioning

confidence: 99%

Polymer Blend Blow Spinning of Flexible Porous Carbon Nanofibers Capable for Multiapplication

Zhang,

Song,

et al. 2024

ACS Appl. Nano Mater.

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Highly efficient production of porous carbon nanofibers (PCNFs) is indispensable for applications in adsorption, thermal insulation, catalysis, batteries, etc. Herein, rapid fabrication of PCNFs with flexible and efficient adsorption properties was achieved through polymer blend blow spinning at a rate of 10−30 mL•h −1 . Polyacrylonitrile (PAN) was used as the organic precursor to prepare PCNFs, with varying mass fractions of poly(methyl methacrylate) (PMMA) microspheres employed as pore-forming agents. Following high-temperature carbonization, the diameter of PCNFs was adjusted within a range of 0.2−1.2 μm, resulting in a high specific surface area of 34.63 m 2 g −1 and a pore distribution of 3−20 nm. PCNFs demonstrated exceptional mechanical resilience, withstanding cyclic compression strains of up to 60% and achieving a peak compression stress of 12.2 kPa. Additionally, PCNFs exhibited a significant adsorption capacity for oils and benzene, coupled with superior thermal insulation performance and an ultralow thermal conductivity of 0.022 W•(m•K) −1 . PCNFs can also be used as sensors and demonstrated unmatched sensitivity to minute pressure variations ranging from 0 to 1 N. The polymer blend blow spinning technique showcased operational simplicity and remarkable versatility across various materials. This excellent functional expandability demonstrated that the strategy held significant potential for the large-scale production of multifunctional PCNFs.

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Section: Introductionmentioning

confidence: 99%

Polymer Blend Blow Spinning of Flexible Porous Carbon Nanofibers Capable for Multiapplication

Zhang,

Song,

et al. 2024

ACS Appl. Nano Mater.

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“…To qualify the stealth function at EM wave with higher frequency or shorter wavelengths, the sizes of SRR units should not only be ultra-small (nanometer or even smaller molecular size), but also perfectly aligned, [19,45] which is almost impossible to achieve current processing technology. [23,[46][47][48][49][50][51] Here, we proposed a novel EM metamaterial with molecularlevel SRR of 2.49 Å diameter for broadband EM wave stealth using the unique molecular structure of polypyrrole (PPy). PPy is a conductive polymer that is widely used in the fields of sensing, [52][53][54] electrocatalysis, [55] and manufacturing electrodes due to its excellent electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

“…To qualify the stealth function at EM wave with higher frequency or shorter wavelengths, the sizes of SRR units should not only be ultra‐small (nanometer or even smaller molecular size), but also perfectly aligned, [ 19 , 45 ] which is almost impossible to achieve current processing technology. [ 23 , 46 , 47 , 48 , 49 , 50 , 51 ]…”

Section: Introductionmentioning

confidence: 99%

Molecularly Resonant Metamaterials for Broad‐Band Electromagnetic Stealth

et al. 2023

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Electromagnetic (EM) metamaterial is a composite material with EM stealth properties, which is constructed by artificially reverse engineering metal split resonance rings (SRR). However, the greatest limitation of EM metamaterials is that they can only stealth at a fixed and lower frequency of EM waves, and modern processing techniques still cannot meet the accuracy requirements to fabric nano‐size structural unit. Nano‐sized and even ultra‐small SRR at molecular level are promising arrays to realize the ability of EM stealth function at a higher frequency, although it has proven challenging to synthesize long, straight, connected molecular SRR, and also difficult to arrange those molecular SRR into a strict array. Here, the study overcomes this challenge and demonstrates that the fabric of polypyrrole molecular SRR achieves an ultra‐small inner diameter of 2.49 Å and realizes the arrays arrangement at molecular level. Furthermore, the study exploits the EM stealth function and verifies that such arrays of molecular SRR with 2.49 Å have the ability to reach high‐performance EM stealth in the range of 106–1016 Hz. This design concept opens a pathway for developing new metamaterials with broadband EM wave stealth and also serves the wider range of new applications.

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Application, development, and challenges of stealth materials/structures in next-generation aviation equipment

Jin,

Zhao,

Chen

et al. 2024

Applied Surface Science Advances

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Electrospinning preparation of hollow porous Sn0.84Sm0.08Sb0.08O2 micro/nano fibers and their multispectral compatible stealth properties

Cited by 9 publications

References 28 publications

Polymer Blend Blow Spinning of Flexible Porous Carbon Nanofibers Capable for Multiapplication

Polymer Blend Blow Spinning of Flexible Porous Carbon Nanofibers Capable for Multiapplication

Molecularly Resonant Metamaterials for Broad‐Band Electromagnetic Stealth

Application, development, and challenges of stealth materials/structures in next-generation aviation equipment

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